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WO2008007847A1 - Procédé d'élimination du calcium d'une huile hydrocarbonée à l'aide d'acide maléique ou de ses dérivés - Google Patents

Procédé d'élimination du calcium d'une huile hydrocarbonée à l'aide d'acide maléique ou de ses dérivés Download PDF

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Publication number
WO2008007847A1
WO2008007847A1 PCT/KR2007/000180 KR2007000180W WO2008007847A1 WO 2008007847 A1 WO2008007847 A1 WO 2008007847A1 KR 2007000180 W KR2007000180 W KR 2007000180W WO 2008007847 A1 WO2008007847 A1 WO 2008007847A1
Authority
WO
WIPO (PCT)
Prior art keywords
calcium
oil
derivatives
compound
crude oil
Prior art date
Application number
PCT/KR2007/000180
Other languages
English (en)
Inventor
Sam Ryong Park
Ik Sang Yoo
In Ho Cho
Gyung Rok Kim
Jae Koo Yang
Sang Chul Lim
Young Seo Park
Jin Kyu Choi
Dong Seob Lim
Jeong Pyo Lee
Chang Hyo Choi
Chang Woo Joo
Tae Won Uhm
Hyung Woong Ahn
Original Assignee
Sk Energy Co., Ltd.
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 Sk Energy Co., Ltd. filed Critical Sk Energy Co., Ltd.
Publication of WO2008007847A1 publication Critical patent/WO2008007847A1/fr

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Classifications

    • 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
    • C10G21/00—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
    • C10G21/06—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents characterised by the solvent used
    • C10G21/12—Organic compounds only
    • C10G21/20—Nitrogen-containing compounds
    • 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
    • C10G17/00—Refining of hydrocarbon oils in the absence of hydrogen, with acids, acid-forming compounds or acid-containing liquids, e.g. acid sludge
    • C10G17/02—Refining of hydrocarbon oils in the absence of hydrogen, with acids, acid-forming compounds or acid-containing liquids, e.g. acid sludge with acids or acid-containing liquids, e.g. acid sludge

Definitions

  • the present invention relates to a method of removing calcium from hydrocarbonaceous oil using maleic acid or its derivatives, and more particularly, to a method of removing calcium from hydrocarbonaceous oil using maleic acid or its derivatives, comprising mixing maleic acid (hereinafter, referred to as "MA") or derivatives thereof, which are hydrophilic, with hydrocarbonaceous oil, including calcium-containing crude oil or hydrocarbon residue, to thus prepare a homogeneous mixture, from which calcium can then be efficiently removed.
  • MA maleic acid
  • Ca in crude oil is mainly present in the form of calcium naphthenate. Further, crude oil having a high calcium content is crude oil (Heidrum, Captain) native to the North Sea, crude oil (Bohai, Shangri) native to China, crude oil (Shering) native to Indonesia, and crude oil
  • US Patent No. 4,778,589 discloses a method of removing calcium from hydrocarbonaceous oil using an aqueous solution of hydroxocarboxylic acid, in particular, citric acid.
  • hydroxocarboxylic acid in particular, citric acid.
  • citric acid When calcium is removed, calcium citrate is produced.
  • Calcium citrate has low solubility in water, and thus a large amount of precipitate remains in a desalting device, remarkably decreasing calcium removal efficiency. Further, upon the removal of calcium from hydrocarbonaceous oil containing high concentrations of calcium, the pH of the aqueous solution that is used becomes too high, leading to device corrosion problems.
  • US Patent No. 4,778,590 discloses a method of removing calcium using amino-carboxylic acid or salts thereof, in particular, EDTA (Ethylene Diamino Tetra Acetic Acid).
  • EDTA Ethylene Diamino Tetra Acetic Acid
  • US Patent No. 4,778,591 discloses a method of removing calcium from hydrocarbonaceous oil using aqueous carbonic acid and salts thereof, in particular, ammonium carbonate.
  • acetic acid is used in an amount 3.3 times as much as the amount of calcium, but the removal efficiency is low, around 46%, and thus the above technique is not industrially important. Further, due to the thorough dissolution of acetic acid in hydrocarbonaceous oil, the upper portion of a distillation device may undesirably corrode in processes subsequent to a desalting process.
  • US Patent No. 5,593,573 discloses the use of sulfonic acid or its salts, in particular, ammonium sulfate, as a calcium removal agent.
  • sulfonic acid or its salts in particular, ammonium sulfate
  • the pH of the aqueous solution layer is controlled to be 6-8, and also, a 10% precipitation inhibitor is used therewith so as to prevent the production of a great amount of calcium sulfate in the desalting process.
  • the above patent suffers because the use of the agent is complicated and economic benefits are negated.
  • ammonium sulfate should be used in an amount at least 6 times the amount of calcium, leading to negation of economic and industrial benefits.
  • sulfonic acid which is a strong acid, remains in the hydrocarbonaceous oil, it causes problems of corrosion of the distillation device in processes subsequent to the desalting process.
  • US Patent Application Publication Nos. 2004-45875 and 2005-241997 disclose a method of removing metal and amine from hydrocarbonaceous oil using aqueous hydroxy acid.
  • the hydroxy acid used include glycolic cid, glucolic acid, C2-C4 alpha-hydroxy acid, and polyhydroxy acid.
  • the glycolic acid is problematic because it remains in the hydrocarbonaceous oil and consequently corrodes the upper portion of a distillation column at high temperatures in processes subsequent to the desalting process.
  • US Patent No. 6,905,593 discloses a method of removing calcium from hydrocarbonaceous oil by maintaining the pH of an aqueous layer in the range of 3.0-5.0 using acetic acid and aqueous ammonia.
  • Japanese Unexamined Patent Publication No. Sho. 52-30284 discloses a method of removing various metals from crude oil using inorganic acid, alkyl phosphate ester and an oxidant.
  • Japanese Unexamined Patent Publication No. Sho. 47-22947 discloses a method of removing metal using alkyl phosphate ester and alkyl carboxylic acid in the absence of inorganic acid, but it results in low metal removal efficiency.
  • an object of the present invention is to provide a method of efficiently removing calcium from hydrocarbonaceous oil, including crude oil or hydrocarbon residue, using MA or its derivatives.
  • the present invention provides a method of removing calcium from hydrocarbonaceous oil using MA or its derivatives, comprising steps of:
  • a hydrophilic compound is mixed with a calcium-containing oil, such as crude oil, to thus prepare a homogeneous mixture, which is then reacted with calcium so that the calcium is deposited as an insoluble material to remove it, thereby effectively removing calcium while solving problems related to the limited mixing ratio of crude oil having high concentrations of calcium, to pH control, and to the transport and use thereof due to the use of excessive amount of water.
  • the method of the present invention can be advantageously applied to the extraction of high-calcium crude oil from an oil well, the pretreatment of crude oil before distillation, the removal of calcium from hydrocarbon mixtures, or the efficient removal of calcium from other oils containing calcium, and is therefore expected to be industrially useful.
  • FIG. 1 is a graph illustrating the Ca removal efficiency depending on the reaction time of solid MA in Example 1 of the present invention.
  • FIG. 2 is a graph illustrating the Ca removal efficiency depending on the amount of MA in Example 3 of the present invention. [Best Mode]
  • the method of efficiently removing calcium from hydrocarbonaceous oil including calcium-containing crude oil or hydrocarbon residue is provided.
  • the selective use of MA or derivatives thereof, which are a hydrophilic compound, is characteristic.
  • MA or its derivatives are reacted with the calcium in the oil to thus produce an insoluble compound that is able to be deposited, whereby the calcium can be effectively removed through the simple and easy process of the invention.
  • the method of removing the calcium according to the present invention comprises 1) adding MA or derivatives thereof, which are a hydrophilic compound, to a hydrocarbon source containing calcium, thus preparing a homogeneous mixture; 2) subjecting the MA or derivatives thereof and the calcium naphthenate present in the homogeneous phase to metal substitution, thus producing calcium dicarboxylate; and 3) desalting the calcium dicarboxylate to thus remove it.
  • the present invention is intended to remove calcium from a hydrocarbon source, not limited to high-calcium crude oil and hydrocarbon residue, including atmospheric residue or vacuum residue, which is a semi-finished product obtained in a crude oil refining process, but also including other hydrocarbon oils, such as oil shale, oil sands, liquefied coal oil, and tar sands. Accordingly, the method of the present invention enables the effective removal of calcium from a hydrocarbon source containing 10 to 3,000 ppm calcium. First, MA or derivatives thereof, which are a compound containing a carboxylic group, are selected, and are then added to a hydrocarbon source including calcium-containing crude oil or hydrocarbon reside from which the calcium should be removed.
  • the compound (MA or its derivatives) may be directly added in a solid phase or in a liquid phase.
  • the compound is used in a molar ratio of 0.5 to 20, and preferably, 1.0 to 10 relative to the amount of calcium contained in the crude oil.
  • the molar ratio is less than 0.5, the removal efficiency is decreased in terms of the equivalent reaction.
  • the ratio exceeds 20, the disposal cost is increased, and furthermore, the cost of post-treatment in a wastewater disposal plant after the desalting process is greatly increased.
  • any method which is known to those skilled in the art may be applied.
  • the added compound is stirred at a predetermined temperature from -10 to 200 0 C, and preferably from 20 to 140 0 C, for a time period ranging from 1 sec to 2 hours, and preferably from 0.2 min to 30 min, so as to realize complete dispersion and sufficient dissolution thereof. Thereby, a homogeneous mixture, in which the compound is completely dissolved, may be obtained.
  • the compound is dissolved in water which is already present in the crude oil.
  • water since water is typically present in an amount of 0.1 to 0.5%, the compound may be dissolved therein even without the use of additional water.
  • the compound in the case of vacuum residue having no water, the compound may be added in a liquid phase, that is, in a state of being diluted with water or an organic solvent. In this case, the compound is diluted to a concentration of 5 to 80 wt% with water or an organic solvent. Such a compound is present in a homogeneously mixed state.
  • the compound and the calcium naphthenate are subjected to metal substitution, thus producing calcium dicarboxylate.
  • the stirring speed of the reactor be controlled.
  • a stirring speed on the order of 100-4,000 rpm or a Reynolds number of 4,000 or more should be preferably maintained to assure a desired mixing state, and, more preferably a stirring speed of 200-3,000 rpm is maintained.
  • the stirring speed of an impeller is increased when a mixing pump and a centrifugal pump have the same mixing capability.
  • reaction temperature ranging from 10 to 200°C, and preferably from 50 to 140°C, and a reaction time ranging from 1 sec to 4 hours, and preferably from 1 min to 60 min.
  • reaction time ranging from 1 sec to 4 hours, and preferably from 1 min to 60 min.
  • the produced calcium dicarboxylate is removed through a desalting process.
  • a general production process may be applied.
  • the process was performed using PED (Portable Electronic Desalter, available from Inter Av.). For example, at a DC voltage of 3,000 Volts, the desalting process was performed for a time period ranging from 10 min to 2 hours, and preferably 1 hour, and at 50-100°C, and preferably 9O 0 C.
  • water may be used in an amount of 5-50%, and preferably 10%.
  • an additive is used to increase oil-water separation efficiency, and any additive typically known in the art may be used.
  • a commercially available demulsifier Prochem 2X24, Petrolite
  • the method of removing the calcium is preferably conducted at a reaction pressure ranging from atmospheric pressure to 20 ami.
  • the hydrophilic compound having high solubility in water is added to hydrocarbonaceous oil, such as crude oil or hydrocarbon residue, and thus, conventional problems related to the use of excessive amounts of water, pH control, corrosion, and the limited mixing ratio of crude oil containing high concentrations of calcium can be solved, and calcium can be easily and economically removed at high efficiency.
  • the method of the present invention is expected to be variously applicable to diverse fields requiring the removal of calcium, in particular, the extraction of high-calcium crude oil from an oil well, the pretreatment of crude oil before distillation, and the removal of calcium from hydrocarbon mixtures and other oils.
  • Example 1 Doba crude oil, native to West Africa (Chad), was blended with general crude oil, to thus prepare crude oil for a test having a concentration of 20%, which is referred to as 20% Doba blend. As a result of analysis through ICP, the concentration of calcium was measured to be an average of 56 ppm.
  • reaction temperature was increased from room temperature to 140°C, and the reaction time was set to be 0.5-10 min, as shown in Table 1 below.
  • reaction temperature was decreased to 90°C within 30 sec using ice water, after which 5 ml of deionized water was added and 1 mg of a demulsifier (Prochem 2x24, Petrolite) was then added, followed by performing a stirring process at 90°C for l5 min.
  • a demulsifier Prochem 2x24, Petrolite
  • reaction solution was transferred into the glass tube of a
  • PED Portable Electric Desalter
  • EDPT Electrostatic Dehydration & Precipitation Tester-228, made by Inter Av Inc (San Antonio,
  • the glass tube containing the sample was placed in the PED, and then the PED was operated at 90°C for 30 min at 3,000 Volts to realize good oil-water separation.
  • the sample was removed from the middle layer of the separated oil and then subjected to an ICP test.
  • the period of time required to transfer the crude oil to the desalter was about 10 min.
  • the temperature was increased from room temperature to 14O 0 C, and, for the next 7 min, the reaction temperature was maintained at 140°C.
  • Example 1 the amount of solid MA was unchanged, and the reaction temperature and time were changed. In such a case, the results of Ca removal efficiency are shown in Table 1 below and in FIG. 1. TABLE l
  • Example 2 Using an aqueous MA solution, the reaction time and the reaction temperature were adjusted to be suitable for an actual distillation process.
  • the test method was the same as in Example 1 , with the exception that an aqueous solution in which 4 g of MA was dissolved in 10 g of deionized water was used to easily add the MA.
  • the Ca removal efficiency was measured depending on the amount of liquid MA.
  • the test method was the same as in Example 2, with the exception that the reaction temperature was set at 140°C, the reaction time was set at 10 min and the amount of the aqueous MA solution was changed. The results are shown in Table 3 below and in FIG. 2.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

L'invention concerne un procédé d'élimination de calcium d'une huile hydrocarbonée à l'aide d'acide maléique ou de ses dérivés, et plus particulièrement, un procédé d'élimination de calcium d'une huile hydrocarbonée à l'aide d'acide maléique ou de ses dérivés, consistant à ajouter un composé hydrophile à une huile hydrocarbonée comprenant de l'huile brute ou un résidu d'hydrocarbure contenant du calcium pour ainsi préparer un mélange homogène, ledit composé est ensuite mis à réagir avec un composé de calcium présentant dans l'huile de sorte que le calcium peut être plus facilement et efficacement éliminé. Contrairement aux procédés d'élimination de calcium classiques, selon le procédé de l'invention, un composé hydrophile est suffisamment mélangé à l'huile contenant du calcium tel que de l'huile brute pour ainsi former un mélange homogène, ledit composé est ensuite mis à réagir avec du calcium pour déposer le calcium en tant que matériau insoluble de manière à l'éliminer, ce qui permet d'éliminer efficacement le calcium tout en résolvant les problèmes liés aux taux de mélange limité de l'huile brute présentant des concentrations élevées de calcium, à la régulation du pH, et au transport et à l'utilisation du fait de l'utilisation d'une quantité d'eau excessive.
PCT/KR2007/000180 2006-07-10 2007-01-10 Procédé d'élimination du calcium d'une huile hydrocarbonée à l'aide d'acide maléique ou de ses dérivés WO2008007847A1 (fr)

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KR1020060064605A KR101340718B1 (ko) 2006-07-10 2006-07-10 말레인산 또는 그 유도체를 이용한 탄화수소류유분으로부터 칼슘의 제거방법
KR10-2006-0064605 2006-07-10

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009113095A2 (fr) 2008-01-24 2009-09-17 Dorf Ketal Chemicals (I) Private Limited Procédé d’élimination de métaux d’une charge d’hydrocarbures en utilisant des esters d’acides carboxyliques
WO2013024489A1 (fr) * 2011-06-29 2013-02-21 Dorf Ketal Chemicals (India) Private Limited Additif et procédé d'élimination du calcium des huiles contenant du naphténate de calcium
US8425765B2 (en) 2002-08-30 2013-04-23 Baker Hughes Incorporated Method of injecting solid organic acids into crude oil
US8685233B2 (en) 2006-08-22 2014-04-01 Dork Ketal Chemicals (I) Private Limited Method of removal of calcium from hydrocarbon feedstock
US20140166537A1 (en) * 2012-12-13 2014-06-19 Baker Hughes Incorporated Methods and compositions for removing solids from hydrocarbon streams
US20140202923A1 (en) * 2012-12-13 2014-07-24 Baker Hughes Incorporated Methods and compositions for removing phosphorous-containing solids from hydrocarbon streams
CN107177369A (zh) * 2017-07-05 2017-09-19 洛阳融惠化工科技有限公司 一种复合型原油脱钙剂
US9790438B2 (en) 2009-09-21 2017-10-17 Ecolab Usa Inc. Method for removing metals and amines from crude oil
US9963642B2 (en) 2002-08-30 2018-05-08 Baker Petrolite LLC Additives to enhance metal and amine removal in refinery desalting processes
WO2020130852A1 (fr) * 2018-12-21 2020-06-25 Equinor Energy As Traitement d'hydrocarbures produits

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101533599B1 (ko) * 2014-05-20 2015-07-03 한국에너지기술연구원 칼슘이 함유된 원유 또는 탄화수소 유분으로부터 아코니트산 또는 그의 유도체를 포함하는 추출제를 사용하여 칼슘을 제거하는 방법
US11820940B2 (en) 2021-09-15 2023-11-21 Halliburton Energy Services, Inc. Organic acid surfactant booster for contaminant removal from hydrocarbon-containing stream

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US4853109A (en) * 1988-03-07 1989-08-01 Chevron Research Company Demetalation of hydrocarbonaceous feedstocks using dibasic carboxylic acids and salts thereof
US5080779A (en) * 1990-08-01 1992-01-14 Betz Laboratories, Inc. Methods for removing iron from crude oil in a two-stage desalting system
US20050194292A1 (en) * 2003-09-22 2005-09-08 Beetge Jan H. Processing aids for enhanced hydrocarbon recovery from oil sands, oil shale and other petroleum residues

Patent Citations (3)

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US4853109A (en) * 1988-03-07 1989-08-01 Chevron Research Company Demetalation of hydrocarbonaceous feedstocks using dibasic carboxylic acids and salts thereof
US5080779A (en) * 1990-08-01 1992-01-14 Betz Laboratories, Inc. Methods for removing iron from crude oil in a two-stage desalting system
US20050194292A1 (en) * 2003-09-22 2005-09-08 Beetge Jan H. Processing aids for enhanced hydrocarbon recovery from oil sands, oil shale and other petroleum residues

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8425765B2 (en) 2002-08-30 2013-04-23 Baker Hughes Incorporated Method of injecting solid organic acids into crude oil
US9963642B2 (en) 2002-08-30 2018-05-08 Baker Petrolite LLC Additives to enhance metal and amine removal in refinery desalting processes
US8685233B2 (en) 2006-08-22 2014-04-01 Dork Ketal Chemicals (I) Private Limited Method of removal of calcium from hydrocarbon feedstock
AU2009222921B2 (en) * 2008-01-24 2012-12-06 Dorf Ketal Chemicals (I) Private Limited Method of removing metals from hydrocarbon feedstock using esters of carboxylic acids
WO2009113095A2 (fr) 2008-01-24 2009-09-17 Dorf Ketal Chemicals (I) Private Limited Procédé d’élimination de métaux d’une charge d’hydrocarbures en utilisant des esters d’acides carboxyliques
KR101606515B1 (ko) * 2008-01-24 2016-03-25 도르프 케탈 케미칼즈 (인디아) 프라이비트 리미티드 카르복실산의 에스테르를 이용한 탄화수소 공급 원료에서의 금속 제거 방법
JP2011510151A (ja) * 2008-01-24 2011-03-31 ドルフ ケタール ケミカルズ（Ｉ） プライベート リミテッド カルボン酸のエステルを使用して炭化水素供給原料から金属を除去する方法
US8440072B2 (en) 2008-01-24 2013-05-14 Dorf Ketal Chemicals (I) Private Limited Method of removing metals from hydrocarbon feedstock using esters of carboxylic acids
CN101939285A (zh) * 2008-01-24 2011-01-05 多尔夫凯塔尔化学制品（I）私人有限公司 利用羧酸酯从原料烃中去除金属的方法
US9080110B2 (en) 2008-01-24 2015-07-14 Dorf Ketal Chemicals (I) Private Limited Composition comprising combination of esters of carboxylic acids for removing metals from hydrocarbon feedstock
WO2009113095A3 (fr) * 2008-01-24 2009-11-26 Dorf Ketal Chemicals (I) Private Limited Procédé d’élimination de métaux d’une charge d’hydrocarbures en utilisant des esters d’acides carboxyliques
US9790438B2 (en) 2009-09-21 2017-10-17 Ecolab Usa Inc. Method for removing metals and amines from crude oil
KR101866927B1 (ko) * 2011-06-29 2018-06-14 도르프 케탈 케미칼즈 (인디아) 프라이비트 리미티드 칼슘 나프테네이트를 함유하는 오일에서 칼슘 제거를 위한 첨가제 및 방법
US8840781B2 (en) 2011-06-29 2014-09-23 Dorf Ketal Chemicals (India) Private Limited Additive and method for removal of calcium from crude oils containing calcium naphthenate
KR20140045508A (ko) * 2011-06-29 2014-04-16 도르프 케탈 케미칼즈 (인디아) 프라이비트 리미티드 칼슘 나프테네이트를 함유하는 오일에서 칼슘 제거를 위한 첨가제 및 방법
RU2561273C1 (ru) * 2011-06-29 2015-08-27 Дорф Кетал Кемикалс (Индия) Прайвит Лимитид Добавка и способ удаления кальция из сырых нефтей, содержащих нафтенат кальция
WO2013024489A1 (fr) * 2011-06-29 2013-02-21 Dorf Ketal Chemicals (India) Private Limited Additif et procédé d'élimination du calcium des huiles contenant du naphténate de calcium
AU2012296145B2 (en) * 2011-06-29 2016-03-31 Dorf Ketal Chemicals (India) Private Limited Additive and method for removal of calcium from oils containing calcium naphthenate
US20140202923A1 (en) * 2012-12-13 2014-07-24 Baker Hughes Incorporated Methods and compositions for removing phosphorous-containing solids from hydrocarbon streams
WO2014093633A1 (fr) * 2012-12-13 2014-06-19 Baker Hughes Incorporated Procédés et compositions permettant d'éliminer des matières solides de flux d'hydrocarbures
US20140166537A1 (en) * 2012-12-13 2014-06-19 Baker Hughes Incorporated Methods and compositions for removing solids from hydrocarbon streams
CN107177369A (zh) * 2017-07-05 2017-09-19 洛阳融惠化工科技有限公司 一种复合型原油脱钙剂
WO2020130852A1 (fr) * 2018-12-21 2020-06-25 Equinor Energy As Traitement d'hydrocarbures produits
US11965131B2 (en) 2018-12-21 2024-04-23 Equinor Energy As Treatment of produced hydrocarbons

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KR20080005799A (ko) 2008-01-15

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