+

WO2018165540A1 - Composition pour traiter un système de carburant diesel - Google Patents

Composition pour traiter un système de carburant diesel Download PDF

Info

Publication number
WO2018165540A1
WO2018165540A1 PCT/US2018/021725 US2018021725W WO2018165540A1 WO 2018165540 A1 WO2018165540 A1 WO 2018165540A1 US 2018021725 W US2018021725 W US 2018021725W WO 2018165540 A1 WO2018165540 A1 WO 2018165540A1
Authority
WO
WIPO (PCT)
Prior art keywords
composition
diesel
fuel
amount
surfactant
Prior art date
Application number
PCT/US2018/021725
Other languages
English (en)
Inventor
Gopakumar Parameswaran
Kaushik BANIK
Rajendra H. VISHNUMURTHY
Original Assignee
3M Innovative Properties Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 3M Innovative Properties Company filed Critical 3M Innovative Properties Company
Priority to CN201880016586.7A priority Critical patent/CN110392729A/zh
Publication of WO2018165540A1 publication Critical patent/WO2018165540A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/06—Use of additives to fuels or fires for particular purposes for facilitating soot removal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G75/00—Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/143—Organic compounds mixtures of organic macromolecular compounds with organic non-macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/04—Carboxylic acids or salts thereof
    • C11D1/08—Polycarboxylic acids containing no nitrogen or sulfur
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/18—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2093—Esters; Carbonates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/16—Hydrocarbons
    • C10L1/1608—Well defined compounds, e.g. hexane, benzene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/16—Hydrocarbons
    • C10L1/1616—Hydrocarbons fractions, e.g. lubricants, solvents, naphta, bitumen, tars, terpentine
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/182—Organic compounds containing oxygen containing hydroxy groups; Salts thereof
    • C10L1/1822—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms
    • C10L1/1824—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms mono-hydroxy
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/185—Ethers; Acetals; Ketals; Aldehydes; Ketones
    • C10L1/1852—Ethers; Acetals; Ketals; Orthoesters
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/185—Ethers; Acetals; Ketals; Aldehydes; Ketones
    • C10L1/1857—Aldehydes; Ketones
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/19—Esters ester radical containing compounds; ester ethers; carbonic acid esters
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/234—Macromolecular compounds
    • C10L1/238—Macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • C10L1/2383—Polyamines or polyimines, or derivatives thereof (poly)amines and imines; derivatives thereof (substituted by a macromolecular group containing 30C)
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2200/00—Components of fuel compositions
    • C10L2200/04—Organic compounds
    • C10L2200/0407—Specifically defined hydrocarbon fractions as obtained from, e.g. a distillation column
    • C10L2200/0438—Middle or heavy distillates, heating oil, gasoil, marine fuels, residua
    • C10L2200/0446—Diesel
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines

Definitions

  • the present disclosure broadly relates to a composition to treat the fuel system, especially for a modern generation diesel engine.
  • the composition is useful in cleaning and decarbonizing the fuel system and burning as an ordinary fuel during the engine cleaning process.
  • Petroleum Diesel or the conventional Diesel Fuel is a fossil fuel derived from conventional refining process using Atmospheric Fractional Distillation at refinery. Diesel is a mixture majorly composed of linear chain hydrocarbons called Paraffins apart from Naphthenes and Aromatics. The number of carbon atoms per molecule of Diesel is roughly between 8 and 21. This fuel is widely used as a source of chemical energy for motive power and stationary power applications.
  • Diesel is used to power a wide variety of vehicles and operations by an ignition process known as Compression Ignition.
  • Compression Ignition the mixture ignites by compression of Air and injection of Diesel Fuel into the compressed air. It fuels the diesel trucks, boats, buses, trains, cranes, farming equipment and various emergency response vehicles and power generators. A high percentile of freight whether it is shipped in trucks, trains or boats rely on diesel.
  • Diesel has a higher calorific value than gasoline. Diesel contains about 38.6 (MJ/1) while gasoline contains about 34.6 (MJ/1). This gives a higher power to diesel. When discussed in terms of motor fuel, diesel is said to be more fuel efficient, giving almost 1.5 times the fuel efficiency of petrol. So diesel engines get better mileage than equivalent gasoline engines. Diesel cars have proven very popular in regions where gas prices are high and consumers demand fuel efficiency across a range of vehicle classes.
  • the modem generation diesel powered motive engines are different in the following attributes:
  • Diesel engines used in them burn at a very high combustion pressure and diesel fuel has to be compressed to more than 1500 bar to combust efficiently.
  • the fuel injection hardware used for these diesel engines are computer controlled.
  • the engine control unit of the vehicle is responsible for efficiently deciding the optimum fuel trim to be injected into the engine, thereby ensuring maximum fuel combustion efficiency.
  • the fuel injectors have multiple injection strokes and are actuated by solenoid or piezo controllers. Since these injectors operate fuel at a rate proportional to the Revolutions per Minute (RPM) of the engine, there response time is in the range of few micro seconds. Hence any time delay in injection can lead to reduced combustion effectiveness and thus leading to loss of motive power and higher emissions.
  • RPM Revolutions per Minute
  • Diesel fuel has progressed from Category 1 to Category 5 level and this represents a reduction in the fuel sulphur and aromatic content to less than 10% volume.
  • Contaminants in diesel fuel like sodium and calcium tend to saponify with some common corrosion inhibitors used in oil transport pipelines and these interfere with movement of the injector internals and render them sticky and sluggish.
  • the reduction in aromatic content is further responsible for leaving deposits in the fuel path inside these fuel injectors, which are termed as internal diesel injector deposits (IDID).
  • IDID in high pressure common rail fuel injection systems are a relatively new problem faced by the original equipment manufacturers across the globe, in both light duty diesel and heavy duty diesel applications. Owing to engine downsizing, these deposits drastically reduce combustion efficiency and increase emissions directly impacting user drive-ability experience apart from reducing the fuel economy as the vehicle ages and runs in real world driving conditions.
  • the present disclosure in general, provides a composition to treat the diesel fuel system which provides a composition for treating a diesel fuel system, which is ready to use, which does not require dilution and helps maintain diesel engine performance by keeping fuel injectors clean, which improves lubricity of the diesel fuel and which help prevent deposit build-up in diesel engines, while meeting the latest CRD (Common rail direct) fuel injection technology requirements for the diesel fuel system hardware.
  • CRD Common rail direct
  • the present disclosure provides a composition comprising a synergistic combination of surfactants, a penetrating mixture of aliphatic and aromatic solvents and diesel which enhances the cleaning performance of the fuel delivery systems and provides improved lubricity to the fuel system.
  • the present disclosure provides a unique, ready to use chemical composition here in referred to as a "diesel fuel system cleaner composition” (DFSC), which has the uniqueness of instantly cleaning the fuel system of a diesel engine while burning as an ordinary fuel during the engine decarbonizing process.
  • DFSC diesel fuel system cleaner composition
  • the DFSC disclosed herein having a penetrating mixture of aliphatic and aromatic solvents, has a aniline point in the range of about 40 °C to 55°C when calculated using IS 1448-3: Methods of test for petroleum and its products, Part 3: Petroleum Products and Hydrocarbon Solvents - Determination of Aniline Point and mixed aniline point and a 50% distillation temperature between 90 °C to 120°C, as obtained in a Thermo-gravimetric Analyzer (TGA) test methodology.
  • TGA Thermo-gravimetric Analyzer
  • diesel fuel system cleaning composition comprising:
  • aromatic hydrocarbons are of formula (I)
  • R is selected from an alkyl group, Ri-OH, Ri-COOH and R1-COOR2 where both Ri and R2 each independently denote a hydrogen, an alkyl group or an aryl group, and wherein
  • said aliphatic hydrocarbons has a boiling point of about 58°C to 190°C
  • aniline point in the range of about 40 °C to 55 °C and
  • the present disclosure features a diesel fuel system cleaner composition, said composition comprising a polar solvent penetrant, a wetting agent, a surfactant, a hydrogen bonding coupler, an aromatic hydrocarbon based solvent and diesel
  • a diesel fuel system cleaning composition which comprises i. about 0.1 to 25 wt % of a polar solvent penetrant
  • v. about 0.01 to 15 wt% of an aromatic hydrocarbon based solvent and vi. about 20 to 60 wt % of diesel.
  • a diesel fuel system cleaning composition which comprises i. isopropyl alcohol in an amount of 10 to 12 wt%
  • a method for preparing the composition for treating a diesel fuel system comprising, mixing of
  • said aliphatic hydrocarbons has a boiling point of about 58°C to 190°C and said aromatic hydrocarbons are of formula (I)
  • R is selected from an alkyl group, Ri-OH, Ri-COOH or R1-COOR2 where both Ri and R2 each independently denote a hydrogen, an alkyl group or an aryl group,
  • said method comprises mixing i. about 0.1 to 25 wt % of one or more polar solvent penetrant
  • a method for treating a diesel fuel system comprises delivering the composition as per the present disclosure into the engine by a pressurized feed.
  • the cleaning composition and method of the present disclosure provides great advantage over the known techniques.
  • the composition of the present disclosure is a ready to use composition, which can be used in a concentrated form and which does not require any dilution.
  • the diesel fuel system cleaner composition of the present disclosure meets the stringent criteria of modem day CRD technology for decarbonizing the fuel system hardware in terms of fuel viscosity and fuel lubricity index so as to safeguard high pressure systems like pump and injectors.
  • the cleaning composition of the present disclosure is meant to drive a diesel engine and perform the intended cleaning and rejuvenation of the engine so that it results in an improved drive ability metrics defined by more power at the wheels and more torque and lesser emissions.
  • a desired reduction in the pulse duty of the pressure regulator valve is also achieved by using the composition as per the present disclosure.
  • diesel refers to a specific fractional distillate of petroleum fuel oil or a washed form of vegetable oil that is used as fuel in a diesel engine. Diesel is composed of about 75% saturated hydrocarbons (primarily paraffins including n, iso, and cycloparaffins), and 25% aromatic hydrocarbons (including naphthalenes and alkylbenzenes). The average chemical formula for common diesel fuel is C12H23, ranging from approx. C10H20 to C15H28.
  • Diesel engine refers to an internal combustion engine (also known as compression-ignition engine) that uses the heat of compression to initiate ignition and burn the fuel that has been injected into the combustion chamber. This contrasts with spark-ignition engines such as a petrol engine (gasoline engine) or gas engine (using a gaseous fuel instead of gasoline), which use a spark plug to ignite an air-fuel mixture. Diesel engines are manufactured in two-stroke and four-stroke versions. [0026] As utilized throughout the instant disclosure the expression “diesel fuel system” comprises as major parts fuel tank, fuel transfer pump, fuel filters, injection pump and injection nozzles. The primary job of the diesel fuel system is to inject a precise amount of atomized and pressurized fuel into each engine cylinder at the precise time.
  • the fuel transfer pump is normally used on modern high-speed diesel engines. It can be driven by either engine or battery voltage.
  • the fuel transfer pump can be located on the outside of the fuel tank in the supply line, submerged within the fuel tank, or mounted on the backside of the injection pump. The fuel pump pushes or draws the fuel through the filters where the fuel is cleaned.
  • the diesel fuel injector system directly injects fuel into the system.
  • the injector is a very complicated part.
  • the injector can withstand high pressure and deliver the fuel in a fine mist form.
  • Several types of injection pumps are used on diesel engines. Each has its own unique operating principles.
  • the primary function of the injection pump is to supply high- pressure fuel for injection.
  • a wide variety of injector nozzles are in use today. All are designed to perform the same basic function which is to spray the fuel in atomized form into the combustion chamber of each cylinder.
  • the fuel injection system can be divided into low- pressure and high-pressure sides.
  • the high-pressure side components include a high pressure pump, accumulator, fuel injector and fuel injector nozzle. A number of injection nozzle designs and different actuation methods have been developed for use with different types of fuel injection systems.
  • Common rail direct (CRD) fuel injection is a modern variant of direct fuel injection system for petrol and diesel engines.
  • CCD common rail direct
  • a high-pressure pump pressurizes fuel at up to 2,500 bar (250 MPa; 36,000 psi), in a "common rail”.
  • the common rail is a tube that supplies each computer-controlled inj ector containing a precision-machined nozzle and a plunger driven by a solenoid or piezoelectric actuator.
  • Third-generation common rail diesels now feature piezoelectric injectors for increased precision, with fuel pressures up to 3,000 bar (300 MPa; 44,000 psi).
  • IDID can be waxy/soapy or carbonaceous in nature.
  • the intemal injector components run at such tight tolerances that even a small, thin deposit or film can cause sticking of moving intemal injector parts and interrupt fuel flow to the cylinder. This result in a loss of control of injection event timing and/or the amount of fuel delivered per injection and in a rough running engine, causes diminished power and fuel economy. Due to the complex injection sequences utilized in common rail engines, the effects of IDID on performance range widely including poor operability, loss of vehicle drivability and rough engine running, unwanted variations in power, reduced fuel economy and power, increased emissions, failure to start and, in extreme cases engine failure.
  • the expression 'decarbonizing the engine' as used herein refers to removal of carbon deposits from the engine, using either mechanical (physical) or chemical methods. Adding certain chemicals like alcohols and terpenes into the conventional fuel supply (for e.g., diesel) appears to dissolve and remove at least a part of the carbon deposit formed in various parts of the engine, such as fuel injection systems, piston crowns & rings, combustion chambers, valves, exhaust manifolds, EGR valves, cat-cons and mufflers. The carbon is then ejected out through the exhaust.
  • drive ability refers to the degree of smoothness and steadiness of acceleration of an automotive vehicle.
  • torque refers to a measure of how much force acting on an object can cause that object to rotate. Torque is the twisting force that the engine produces. The torque from the engine is what moves a vehicle. The various gears in the transmission and differential multiply the torque and split it up between the wheels. More torque can be sent to the wheels in first gear than in fifth gear because first gear has a larger gear-ratio which gets multiplied by the torque.
  • emission refers to the discharge of exhaust gas or flue gas occurring as a result of combustion of the fuel. Exhaust gas or flue gas is emitted as a result of the combustion of fuels such as natural gas, gasoline/petrol, diesel fuel etc. It is a major component of motor vehicle emissions. Motor vehicle emissions contribute to one of the major causes of air pollution and are a major ingredient in the creation of smog in some large cities. European emission standards define the acceptable limits for exhaust emissions of new vehicles sold in EU member states. The emission standards are defined in a series of European Union directives namely Eurol to Euro 5; Environmental Protection Agency's Tier 2, staging the progressive introduction of increasingly stringent standards.
  • viscosity as used in the context of the present disclosure is a measure of its resistance to gradual deformation by shear stress or tensile stress Oil's viscosity is typically measured and defined in two ways, either based on its kinematic viscosity or its absolute (dynamic) viscosity. Fluid's kinematic viscosity is defined as its resistance to flow and shear due to gravity.
  • Fuel with the viscosity can cause engine or fuel system damage.
  • High viscosity fuel increases gear strain, cam and follower wear on the fuel pump assembly because of the higher injection pressure. Fuel atomizes less efficiently and the engine will be more difficult to start.
  • Low viscosity fuel may not provide adequate lubrication to plungers, barrels and injectors, and its use should be evaluated carefully.
  • the viscosity of the fuel affects atomization and fuel delivery rate.
  • the viscosity of diesel fuel is normally specified at 40°C or 50°C.
  • Total Base Number is a measure of (alkaline) additives in the oil. Higher TBN oils are able to neutralize a greater amount of acidic materials, which results in improved protection against corrosive reactions and longer oil life. Generally speaking, the higher the oil's total base number (TBN), the better its ability to neutralize contaminants such as combustion by-products and acidic materials.
  • Foaming is a common problem in fuel systems. Foam is a collection of small bubbles of air that accumulate on or near the surface of the fluid. In severe cases, the foam can leak out of the machine through breathers, sight glasses and dipsticks. Foam is an efficient thermal insulator, so the temperature of the oil can become difficult to control. The presence of air bubbles in the fluid can lead to excessive oxidation, cavitation, the reduction of lubricating properties of the oil and hydraulic system failure. So, the foaming tendency of the fuel should be minimized.
  • solubility parameter is the Hanssen solubility parameter.
  • the solubility parameter is a numerical value that indicates the relative solvency behavior of a specific solvent. It is derived from the cohesive energy density of the solvent, which in turn is derived from the heat of vaporization. The quantity is represented by the symbol ⁇ and is obtained by the square root of the cohesive energy density as a numerical value indicating the solvency behaviour of a specific solvent.
  • Hildebrand solubility parameters are expressed in mega-pascals and are designated as such, namely 9/MPa1 ⁇ 2. Hansen parameters divide the total Hildebrand value into three parts: a dispersion force component, a hydrogen bonding component, end a polar component. This means that Hansen parameters are additive:
  • dh 2 hydrogen bonding component
  • aniline point is the "aniline point temperature,” which is the lowest temperature (°F or °C) at which equal volumes of aniline (C6H5NH2) and the oil form a single phase.
  • the aniline point (AP) correlates roughly with the amount and type of aromatic hydrocarbons in an oil sample.
  • the aniline point (or mixed aniline point) is useful as an aid in the characterization of pure hydrocarbons and in the analysis of hydrocarbon mixtures. While aromatic hydrocarbons exhibit the lowest, and paraffins the highest values. Cycloparaffins and olefins exhibit values that lie between those for paraffins and aromatics. In homologous series the aniline points increase with increasing molecular weight. Although it occasionally is used in combination with other physical properties in correlative methods for hydrocarbon analysis, the aniline point is most often used to provide an estimate of the aromatic hydrocarbon content of mixtures.
  • distillation temperature is an indicator of the tendency of a fuel to vaporize. This is measured by determining a series of temperatures at which various percentages of the fuel has evaporated.
  • the fuel distillation temperature which is the temperature at which at a said initial mass of diesel evaporates.
  • T50 is the fuel distillation temperature at which at least 50% of the initial mass of sample has evaporated.
  • the composition according to any embodiment of the present disclosure is a ready to use composition which can be used to clean the diesel fuel system to free it off any carbonaceous coking deposit or of IDID, and it has the advantage of simultaneously cleaning the system while being used as a fuel itself to drive the system.
  • the fact that the instant composition does not require any dilution before being used, is a feature which distinguishes it from most of the currently known fuel system cleaners and which offer great advantage to the user in terms of cost, time and energy.
  • the diesel fuel system cleaner composition of the present disclosure also meets the stringent standards set with respect to the modern day CRD technology for decarbonizing the fuel system hardware in terms of fuel viscosity and fuel lubricity index so as to safeguard high pressure systems like pump and injectors.
  • the cleaning composition of the present disclosure advantageously is able to perform the cleaning and rejuvenation of the engine while acting itself as fuel for the diesel engine and thus it results in an improved drive ability metrics defined by more power at the wheels and more torque and lesser emissions.
  • a reduction in pulse duty of the pressure regulator valve has been also achieved by using the composition according to this disclosure.
  • this invention provides a diesel fuel system cleaning composition comprising:
  • aromatic hydrocarbons are of formula (I)
  • R is selected from an alkyl group, Ri-OH, Ri-COOH and R1-COOR2 where both Ri and R2 each independently denote a hydrogen, an alkyl group or an aryl group, and wherein said aliphatic hydrocarbons has a boiling point of about 58°C to 190°C characterized in that the said composition has
  • aniline point in the range of about 40 °C to 55 °C and
  • the diesel fuel system cleaning composition comprises i. about 0.1 to 25 wt % of one or more polar solvent penetrant
  • v. about 0.01 to 15 wt% of one or more aromatic hydrocarbon based solvent and vi. about 20 to 60 wt % of diesel.
  • the aromatic hydrocarbon and aliphatic hydro carbon is present each in an amount of about 0.01 to 15 % by weight of the composition.
  • the aliphatic hydrocarbon as per the invention may be a polar solvent penetrant, a wetting agent, a hydrogen bonding coupling agent and /or combination thereof.
  • the aromatic hydrocarbon component may comprise compounds like toluene, xylene and /or combinations thereof.
  • the present disclosure provides a composition for treating a diesel fuel system, said composition comprising a polar solvent penetrant, a wetting agent, a surfactant, a hydrogen bonding coupler, an aromatic hydrocarbon based solvent and diesel
  • the polar solvent penetrant includes low boiling alcohols, ketones and ethers like methanol, methyl Acetate, acetone etc. ; medium boiling range alcohols like n-propanol, iso-propyl alcohol, ethanol etc. and high boiling range alcohols.
  • the polar solvent penetrant which may be operative herein illustratively include solvents like isopropyl alcohol, methyl alcohol etc.
  • the composition as per the present disclosure may contain one or more of such solvents.
  • the polar solvent penetrant may be present in an amount of from about 0.1 to 25 wt% by weight, in other embodiments in an amount of from about 1 to 15 wt % by weight and in still other embodiments in an amount of about 10 to 12 wt% by weight in still other embodiments in an amount of about 3 to 4 wt%.
  • the wetting agent which may be operative herein illustratively include compounds like 2 butoxy ethanol.
  • the composition as per the present disclosure may contain one or more of such wetting agents.
  • the wetting agent may be present in an amount of from about 0.1 to 25 wt% by weight, in other embodiments in an amount of from about 1 to 15wt % by weight and in still other embodiments in an amount of about 13 to 17 wt% by weight.
  • the surfactant which may be operative herein illustratively includes compounds like Butane-di-oic acid derivative of poly isobutylene.
  • the composition as per the present disclosure may contain one or more of such surfactants.
  • the surfactant may be present in an amount of from about 0.1 to 35 wt% by weight, in other embodiments in an amount of from about 1 to 25 wt% by weight and in still other embodiments in an amount of about 15 to 20 wt% by weight.
  • the hydrogen bonding coupler may comprise Ri-OH, R1-COOR2 and/or combinations where both Ri and R2 are as defined in formal I.
  • the hydrogen bonding coupler which may be operative herein illustratively includes compounds like diacetone alcohol.
  • the composition as per the present disclosure may contain one or more of such hydrogen bonding couplers.
  • the hydrogen bonding coupler may be present in an amount of from about 0.01 to 15 wt% by weight, in other embodiments in an amount of from about 0.1 to 10 wt% by weight and in still other embodiments in an amount of about 2 to 3 wt% by weight.
  • the aromatic hydrocarbon based solvent cleaner which may be operative herein illustratively include toluene, xylene etc.
  • the composition as per the present disclosure may contain one or more of such solvent cleaners.
  • the aromatic hydrocarbon based solvent may be present in an amount of from about 0.01 to 15 wt% by weight, in other embodiments in an amount of from about 0.5 to 10 wt% by weight and in still other embodiments in an amount of about 6 to 8 wt% and in still other embodiments in an amount of about 3 to 5 wt%.
  • diesel may be used as the mass diluent.
  • Advantageously high speed diesel may be used.
  • Diesel may be present in an amount of from about 20 to 60 wt% by weight, in other embodiments in an amount of from about 30 to 50 wt% by weight and in still other embodiments in an amount of about 35 to 40 wt%.
  • a method for treating a diesel fuel system comprising delivering the composition in accordance with the present disclosure to the engine.
  • the delivering of the composition into the engine may be done by a pressurized feed.
  • the composition according to the present disclosure is a ready to use product which does not need any kind of dilution and can be readily fed into the diesel engine through the dispensing mechanism.
  • the composition as per the present disclosure is capable of cleaning contemporary CRD solenoid based and piezo electric crystal based multi injection cycle diesel fuel injectors.
  • the cleaning methodology referred to as "through the rail cleaning", proceeds to clean the diesel fuel system through the fuel delivery lines, the high pressure rails in contemporary CRD engines, the fuel injectors and the engine combustion chamber.
  • the cleaning composition of the present disclosure is able to drive a diesel engine and perform the intended cleaning and rejuvenation of the engine so that it results in an improved drive-ability metrics defined by more power at the wheels and more torque and lesser emissions.
  • the difference is also noted by the pulse duty of the pressure regulator valve as per engine control data received from the ECU through an engine scanner tool.
  • Embodiment A is a diesel fuel system cleaning composition comprising: (i) a mixture of one or more aromatic and aliphatic hydro carbons (ii) at least one surfactant and (iii) diesel wherein said aromatic hydrocarbons are of formula (I)
  • R is selected from an alkyl group, Ri-OH, Ri-COOH and R1-COOR2 where both Ri and R2 each independently denote a hydrogen, an alkyl group or an aryl group, and wherein said aliphatic hydrocarbons has a boiling point of about 58°C to 190°C characterized in that the said composition has solubility of about 16 MPa 1/2 to 30 MPa 1/2 ,aniline point in the range of about 40°C to 55 °C and 50% Distillation Temperature of about 90°C to 120°C.
  • Embodiment B is a composition as defined above wherein the alkyl groups R and Ri in the aromatic hydrocarbon has 1 to 3 carbon atoms.
  • Embodiment C is a composition as defined above, wherein the said aliphatic hydrocarbon is selected from the group consisting of a polar solvent penetrant, a wetting agent, a hydrogen bonding coupling agent and combinations thereof.
  • Embodiment D is a composition as defined above, wherein the polar solvent penetrant is selected from the group consisting of alcohols, ketones, ethers and combinations thereof.
  • Embodiment E is a composition as defined above, wherein the polar solvent penetrant is selected from the group consisting methanol, methyl acetate, acetone, n-propanol, isopropyl alcohol, methyl alcohol, ethanol and combinations thereof.
  • the polar solvent penetrant is selected from the group consisting methanol, methyl acetate, acetone, n-propanol, isopropyl alcohol, methyl alcohol, ethanol and combinations thereof.
  • Embodiment F is a composition as defined above, wherein the wetting agent comprises a glycol ether solvent.
  • Embodiment G is a composition as defined above, wherein the glycol ether solvent is 2-butoxy ethanol.
  • Embodiment H is a composition as defined above, wherein the surfactant comprises a Butane-di-oic acid derivative of poly isobutylene.
  • Embodiment I is a composition as defined above, wherein the diesel is high speed diesel.
  • Embodiment J is a composition as defined above, wherein the hydrogen bonding coupler is selected from Ri-OH, R1-COOR2 or combinations thereof where both Ri and R2 are as defined in embodiment A.
  • Embodiment K is a composition as defined above, wherein the hydrogen bonding coupler is diacetone alcohol.
  • Embodiment L is a composition as defined above, wherein aromatic hydrocarbon is selected from the group consisting of toluene, xylene and combinations thereof.
  • Embodiment M is a composition as defined above, wherein (i) the aromatic hydrocarbon and aliphatic hydro carbons is present each in an amount of about 0.01 to 15 % by weight of the composition.
  • Embodiment N is a composition as defined above, wherein (i) the combination of aromatic and aliphatic hydro carbons is present in an amount of about 0.1 to 80% by weight of the composition (ii) the surfactants is present in an amount of about 0.1 to 25% by weight of the composition and (iii) the diesel is present in an amount of about 20 to 60% by weight of the composition.
  • Embodiment O is a composition as defined above, comprising (i) about 0.1 to 25 wt % of a polar solvent penetrant (ii) about 0.1 to 25 wt% of a wetting agent (iii) about 0.1 to 35 wt% of a surfactant (iv) about 0.01 to 15 wt % of a hydrogen bonding coupler (v) about 0.01 to 15 wt% of an aromatic hydrocarbon based solvent and (vi) about 20 to 60 wt % of diesel.
  • Embodiment P is a diesel fuel system cleaning composition
  • isopropyl alcohol in an amount of 10 to 12 wt% (ii) 2 butoxy ethanol in an amount of 13 to 17 wt% (iii)
  • Butane-di-oic acid derivative of poly isobutylene surfactant in an amount of 15 to 20 wt% (iv) methyl alcohol in an amount of 3 to 4 wt% (v) diacetone alcohol in an amount of 2 to 3 wt%
  • toluene in an amount of 6 to 8 wt%
  • xylene in an amount of 3 to 5 wt%
  • high speed diesel in an amount of 30 to 40 wt%.
  • Embodiment Q is a method for preparing diesel fuel system cleaning composition, said method comprising, mixing of (i) one or more aromatic and aliphatic hydro carbons wherein said aliphatic hydrocarbons has a boiling point of about 58°C to 190°C and said aromatic hydrocarbons are of formula (I)
  • R is selected from an alkyl group, Ri-OH, Ri-COOH or R1-COOR2 where both Ri and R2 each independently denote a hydrogen, an alkyl group or an aryl group, (ii) at least one surfactant and (iii) diesel
  • Embodiment R is a method as defined above, comprising mixing of (i) about 0.1 to 25 wt % of one or more polar solvent penetrant (ii) about 0.1 to 25 wt% of a wetting agent (iii) about 0.1 to 35 wt% of a surfactant (iv) about 0.01 to 15 wt % of a hydrogen bonding coupler (v) about 0.01 to 15 wt% of one or more aromatic hydrocarbon based solvent and (vi) about 20 to 60 wt % of diesel
  • Embodiment S is a method for treating a diesel fuel system, said method comprising delivering the composition as defined herein above, to the engine by a pressurized feed.
  • compositions which may be produced include those set forth below.
  • the illustrative example compositions demonstrate certain particularly preferred embodiments of the invention as well as preferred weight percentages as well as preferred relative weight percentages/weight ratios with regard to the respective individual constituents present within a composition.
  • These specific compositions, materials, and methods are not intended to limit the invention, but merely to illustrate specific embodiments falling within the scope of the invention.
  • One skilled in the art may develop equivalent materials, and methods without the exercise of inventive capacity and without departing from the scope of the invention. It will be understood that many variations can be made in the procedures herein described while still remaining within the bounds of the invention. It is the intention of the inventors that such variations are included within the scope of the invention.
  • Example of composition according to an embodiment of the present disclosure is detailed in Table 2. It is manufactured by dissolving and mixing the various ingredients into demineralized water at room temperature. TABLE 2
  • the tested parameters were Hanssen Solubility parameter, blend stability test, Clean- ability Performance, Aniline point, Distillation temperature, Specific gravity, Copper strip Corrosion, Total Sulphur Content, Viscosity, Total Base Number, High Frequency Reciprocating Rig and Rust & Corrosion Protection. These twelve parameters are deemed important as critical performance attributes for this product, and hence the invention was tested to show the superiority of the claimed invention. These are discussed below in detail, which proves the superiority of the present invention.
  • HANSSEN SOLUBILITY PARAMETER Using the Hildebrand solvent spectrum the Hildebrand value of a solvent mixture can be determined by averaging the Hildebrand values of the individual solvents multiplied by the volume fraction of the individual solvents.
  • Test Method The test involves observing the fluid after it has been standing in a long neck conical flask for a period of 48 hours for any visual layering.
  • the blend of interest should not exhibit any separation. Blends that exhibit separation are marked to have failed the test as it indicates a failure of the polarity component matching in the blend.
  • CLEAN-ABILTY TEST This test was used to understand the effectiveness of the diesel fuel system cleaners at removing deposits left by diesel and other potent additives in the fuel which has been identified for leaving deposits inside the fuel system: e.g. in the pump, the lining, rails and the fuel injectors.
  • Test Method The clean-ability was monitored using a Panel Coker Machine. The machine was run at a Panel Surface temperature of 350°C which is maintained by a temperature thermostat for 2 hours, and Diesel fuel was mixed with a 5: 1 blend (by mass) of Butane-di-oic acid derivative of poly isobutylene (which is a known deposit enhancer inside fuel injectors causing heavy performance losses on combustion). This fuel was made to fall on the heated panel at a calibrated rate of 10 ml per Hour in the form of micron size droplets. The Panel was kept at an inclination due to which the fuel on impacting with the hot panel slid down on the entire length of the panel. The length of the panel was maintained at 100 mm.
  • the metal panel plate (Aluminum 60601 T6) which had been finished to a surface finish of Ra 0.8 Microns was used for the test.
  • the panels were tare weighed before starting the test, and after the testing period, the panels were again weighed to understand the weight of the deposits formed on it. The panels were then immersed into the various diesel cleaner solutions.
  • ANILINE POINT This is an indication of the aromaticity and hence can be interpreted as an index of polarity of the mixture. The lower the aniline point, the greater is the content of aromatic compounds in the oil.
  • Test Method This test was done in accordance with the IS 1448 (P:3) standard.
  • DISTILLATION PERFORMANCE This test is an indicator of the tendency of a fuel to vaporize. This test was carried out to demonstrate how the blend performs in a Diesel Combustion Engine. This rest was conducted in a Thermo-gravimetric Analyzer (TGA). Test Method: The test involves heating 7 to 8 milligrams of sample in the TGA at a constant rate of 10°C per minute in an oxygen background until it reaches a temperature of 400 °C. The % weight loss due to boiling and change of phase from liquid to vapor state is recorded with respect to temperature. The lowest temperature at which 10%, 50% and 80% of the initial mass of sample has evaporated is noted. [0088] SPECIFIC GRAVITY: This test is a necessary component of this formulation so as to ensure that the composition is of the desired relative density.
  • Test Method This test was done as per ASTM D 4052 standard at 15°C.
  • VISCOSITY AT 50°C The viscosity is a necessary component of this formulation, this is to ensure that the pump is able to pressurize the fluid to the right pressure and at the same time the spray pattern of the fluid is maintained at par with the Engine Design parameters.
  • Test Method This test was done in accordance with the ASTM D 445 standard at 50°C.
  • the Diesel fuel was heated to 50°C and the time noted for the fuel to drop through a calibrated canon fenske viscometer bulb was measured. The time taken was converted to the Viscosity by multiplying with the viscometer constant.
  • TOTAL BASE NUMBER This is an indication of how strong the solution is at resisting oxidation and also gives us a possible indication of the strength of the basicity of this cleaner.
  • the TBN as mentioned in the ASTM D 2896 is a measurement of the basic content in petroleum products by titration with perchloric acid in glacial acetic Acid.
  • the sample is dissolved in an essentially anhydrous mixture of chlorobenzene and glacial acetic acid and titrated with a solution of perchloric acid in glacial acetic acid using potentiometric titrimeter.
  • a glass indicating electrode and a calomel reference electrode are used, the latter being connected with the sample solution by means of a salt bridge.
  • the meter readings are plotted against the respective volumes of titrating solution, and the end point is taken at the inflection in the resulting curve.
  • HFRR wear TEST This test is industry standard test for diesel fuel lubricity as per ASTM D6079 and to meet IS 1460 Indian Standard Diesel BSIV specifications.
  • the High Frequency Reciprocating Rig (HFRR) is a microprocessor-controlled reciprocating friction and wear test system which provides a fast, repeatable assessment of the wear scar performance.
  • Test Method A solution of 5% NaCl mixed with the samples in a 30:70 percent ratio was prepared. A Mild steel panel was cleaned to a surface finish of 0.5 Microns Ra and the panels were coated with this solution. The panels were allowed to age in room temperature at 85% humidity for 72 hours. The samples with more than 20% of the area spotted with rust were declared as failed.
  • EXAMPLE 3 Preparation of the diesel fuel system cleaning composition (DFSC) [0096]
  • Example of composition according to an embodiment of the present disclosure is detailed in Table 4. It is manufactured by dissolving and mixing the various ingredients into demineralized water at room temperature.
  • the medium boiling alcohol, isopropyl alcohol has been replaced by ethanol.
  • Example of composition according to an embodiment of the present disclosure is detailed in Table 6. It is manufactured by dissolving and mixing the various ingredients into demineralized water at room temperature.
  • the medium boiling alcohol, isopropyl alcohol has been replaced by n-propanol.
  • Example of composition according to an embodiment of the present disclosure is detailed in Table 8. It is manufactured by dissolving and mixing the various ingredients into demineralized water at room temperature.
  • the medium boiling alcohol, isopropyl alcohol has been replaced by n-propanol.
  • the low boiling alcohol, methyl alcohol was replaced with another low boiling polar solvent, acetone.
  • Example of composition according to an embodiment of the present disclosure is detailed in Table 10. It is manufactured by dissolving and mixing the various ingredients into demineralized water at room temperature.
  • the medium boiling alcohol, isopropyl alcohol has been replaced by n-propanol.
  • the low boiling alcohol, methyl alcohol was replaced with another low boiling polar solvent, methyl acetate.
  • the diesel fuel system cleaning composition described herein above exhibits amongst other good clean-ability, good boiling range and blend stability.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Emergency Medicine (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Detergent Compositions (AREA)

Abstract

La présente invention concerne une composition de nettoyage de système de carburant diesel comprenant : (i) un mélange d'un ou plusieurs hydrocarbures aromatiques et aliphatiques, (ii) au moins un tensioactif et (iii) du diesel, lesdits hydrocarbures aliphatiques présentant un point d'ébullition d'environ 58°C à 190°C, caractérisée en ce que ladite composition présente une solubilité d'environ 16 MPa1/2 to 30 MPa1/2, un point d'aniline dans la plage d'environ 40°C à 55°C et une température de distillation à 50 % d'environ 90°C à 120°C. La présente invention concerne également des procédés de préparation des compositions de nettoyage de système de carburant diesel de la présente invention.
PCT/US2018/021725 2017-03-10 2018-03-09 Composition pour traiter un système de carburant diesel WO2018165540A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880016586.7A CN110392729A (zh) 2017-03-10 2018-03-09 用来处理柴油燃料系统的组合物

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201741008477 2017-03-10
IN201741008477 2017-03-10

Publications (1)

Publication Number Publication Date
WO2018165540A1 true WO2018165540A1 (fr) 2018-09-13

Family

ID=63448835

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/021725 WO2018165540A1 (fr) 2017-03-10 2018-03-09 Composition pour traiter un système de carburant diesel

Country Status (2)

Country Link
CN (1) CN110392729A (fr)
WO (1) WO2018165540A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1417303A (zh) * 2002-01-18 2003-05-14 刘俊 一种燃料油添加剂
CN101177638A (zh) * 2007-12-01 2008-05-14 鞍山市佳良能源技术开发有限公司 清洁柴油添加剂
CN101928625A (zh) * 2009-06-22 2010-12-29 北京红豪特高科技发展有限公司 一种新型的发动机用燃料添加剂
US20140000158A1 (en) * 2012-06-29 2014-01-02 Truscott Terrace International Holdings Group, LLC Cleaning Formulation and Method for Internal Combustion Engines
CN104694177A (zh) * 2013-12-06 2015-06-10 青岛惠城石化科技有限公司 清洁复合柴油车用燃料

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1332229A (zh) * 2000-06-26 2002-01-23 王保行 汽、柴油高能消烟节油清净剂
CN1483792A (zh) * 2003-07-23 2004-03-24 陈占华 发动机燃油系统清洗剂
JP5106695B1 (ja) * 2012-04-02 2012-12-26 修 小川 ディーゼルエンジン用内部洗浄剤及びこれを用いた洗浄システム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1417303A (zh) * 2002-01-18 2003-05-14 刘俊 一种燃料油添加剂
CN101177638A (zh) * 2007-12-01 2008-05-14 鞍山市佳良能源技术开发有限公司 清洁柴油添加剂
CN101928625A (zh) * 2009-06-22 2010-12-29 北京红豪特高科技发展有限公司 一种新型的发动机用燃料添加剂
US20140000158A1 (en) * 2012-06-29 2014-01-02 Truscott Terrace International Holdings Group, LLC Cleaning Formulation and Method for Internal Combustion Engines
CN104694177A (zh) * 2013-12-06 2015-06-10 青岛惠城石化科技有限公司 清洁复合柴油车用燃料

Also Published As

Publication number Publication date
CN110392729A (zh) 2019-10-29

Similar Documents

Publication Publication Date Title
EP1425365B1 (fr) Combustible diesel et procede de fabrication et d'utilisation de ce combustible
CN104603246B (zh) 改进柴油或生物柴油燃料的抗磨性和抗漆状沉积性的添加剂
US2807525A (en) Additive for motor fuels
JP4383893B2 (ja) ガソリン添加物
JPS6220590A (ja) 無水マレイン酸−ポリエ−テル−ポリアミン反応生成物及びそれを含有する自動車燃料用組成物
JP2011508003A (ja) 低硫黄ディーゼル燃料の使用時に損失した硫黄潤滑を代替するための一般的合成潤滑剤、方法、およびプロダクト・バイ・プロセス
US20110232165A1 (en) Fuel or fuel additive composition and method for its manufacture and use
WO2013175711A1 (fr) Agent de nettoyage
WO2018165540A1 (fr) Composition pour traiter un système de carburant diesel
JP7558966B2 (ja) 低速早期点火を低減するための方法
KR20180036120A (ko) 내연기관 세정제 및 이를 사용하는 내연기관의 세정방법
CA2482735C (fr) Methode de reduction de l'ecaillage des depots d'une chambre de combustion
US20050268536A1 (en) Diesel motor fuel additive composition
CN111826239A (zh) 一种燃烧室清洁养护剂配方及制备方法
STAnik et al. Engine tests for coking and contamination of modern multi-injection injectors of high-pressure fuel supplies compression-ignition engine
RU2798574C1 (ru) Способ получения многофункциональной присадки к автомобильным бензинам
EP4179047B1 (fr) Additifs de carburant pour atténuer l'encrassement d'une buse d'injecteur et réduire les émissions de particules
US20090077870A1 (en) Fuel additive
Caracciolo et al. An engine dynamometer test for evaluating port fuel injector plugging
US7846223B2 (en) Fuel additive
Kuo et al. Aftermarket fuel additives and their effects on GDI injector performance and particulate emissions
RU2155794C1 (ru) Топливная композиция
RU2147602C1 (ru) Топливная композиция
WO2017152262A1 (fr) Additif polyvalent pour moteur à combustion
RU2155795C1 (ru) Топливная композиция

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18764445

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18764445

Country of ref document: EP

Kind code of ref document: A1

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载