CN108854451A - A kind of purification method of the air containing ammonia - Google Patents
A kind of purification method of the air containing ammonia Download PDFInfo
- Publication number
- CN108854451A CN108854451A CN201810640089.6A CN201810640089A CN108854451A CN 108854451 A CN108854451 A CN 108854451A CN 201810640089 A CN201810640089 A CN 201810640089A CN 108854451 A CN108854451 A CN 108854451A
- Authority
- CN
- China
- Prior art keywords
- ammonia
- air
- soft water
- tower
- tower bottom
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 113
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 56
- 238000000746 purification Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000007921 spray Substances 0.000 claims abstract description 30
- 239000008234 soft water Substances 0.000 claims abstract description 28
- 239000006096 absorbing agent Substances 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000013589 supplement Substances 0.000 claims abstract description 13
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 12
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002699 waste material Substances 0.000 claims abstract description 10
- 238000010521 absorption reaction Methods 0.000 claims abstract description 9
- 238000003763 carbonization Methods 0.000 claims abstract description 7
- 230000008676 import Effects 0.000 claims abstract description 7
- 238000011049 filling Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 2
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 2
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 2
- 239000001099 ammonium carbonate Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1418—Recovery of products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/103—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The present invention relates to a kind of purification methods of air containing ammonia, include the following steps：（1）Ammonia-containing gas are drained into the tower bottom import of spray absorber by air-introduced machine；（2）Ammonia-containing gas are risen by tower bottom import, and tower top sprays soft water at this time, so that ammonia-containing gas and soft water counter current contacting；（3）During counter current contacting, the ammonia in ammonia-containing gas is completely soluble in water, and drops to tower bottom with liquid, and the air being purified continues to rise to tower top emptying；（4）Soft water after tower bottom absorption ammonia sends tower top back to through circulating pump again；（5）The contact of air containing ammonia that filling into again need to purify absorbs, and repeats above-mentioned absorption process.The present invention will contain amorphous ammonia in ammonia air and collect, and form weak aqua ammonia waste liquid, purify air containing ammonia, and weak aqua ammonia waste liquid is used for the supplement water of carbonization system, resource rational utilization.
Description
Technical field
The present invention relates to a kind of purification methods of air containing ammonia, belong to the technical field of exhaust-gas treatment.
Background technique
In the chemical fertilizer productions such as ammonium hydrogen carbonate enterprise, chemical fertilizer finished product discharge port, bagging area, the air for stacking the positions such as warehouse
In, it is easy to assemble a large amount of amorphous low concentration air containing ammonia.This part air containing ammonia is diffused in place, not only generates thorn
The smell of nose brings discomfort to employee, more importantly wasting a large amount of ammonia resource.
In a kind of ammonia tail gas recycling and treating device of patent CN 206793387, using diluted acid neutralization of ammonia tail gas, this method
Although finally energy qualified discharge, can consume diluted acid resource, and generating acid-bearing wastewater can not secondary use.
Summary of the invention
For the above-mentioned technical problem of the prior art, the object of the present invention is to provide a kind of purification method of air containing ammonia,
It will contain amorphous ammonia in ammonia air and collect, and form weak aqua ammonia waste liquid, purify air containing ammonia, and weak aqua ammonia waste liquid is used for carbon
The supplement water of change system, resource rational utilization.
In order to achieve the above objectives, the present invention is achieved by the following technical solutions：
A kind of purification method of the air containing ammonia, includes the following steps：
（1）Ammonia-containing gas are drained into the tower bottom import of spray absorber by air-introduced machine；
（2）Ammonia-containing gas are risen by tower bottom import, and tower top sprays soft water at this time, so that ammonia-containing gas and soft water counter current contacting；
（3）During counter current contacting, the ammonia in ammonia-containing gas is completely soluble in water, and drops to tower bottom with liquid, obtains
Air to purification continues to rise to tower top emptying；
（4）Soft water after tower bottom absorption ammonia sends tower top back to through circulating pump again；
（5）The contact of air containing ammonia that filling into again need to purify absorbs, and repeats above-mentioned absorption process.
During the soft water circulation, it is sent into carbonization system and is used as solution supplement water.
The soft water is weak aqua ammonia waste liquid.
The air cleaning containing ammonia is completed in the purification plant, and the purification device includes spray absorber, the spray
The bottom on leaching absorption tower is connected with air-introduced machine by tower bottom inlet tube, and tower top blow-down pipe is connected at the top of spray absorber, and
The top of spray absorber is equipped with soft water spray head, and the soft water spray head is connected with soft water supplement pipe, the soft water supplement pipe connection
There is circulating pump, the circulating pump is connect with spray absorber, forms a circuit.
The purification method of present invention air containing ammonia has the advantages that：
1, the present invention will contain amorphous ammonia in ammonia air and collect, and form weak aqua ammonia waste liquid, purify air containing ammonia；
2, the weak aqua ammonia waste liquid in the present invention is used for the supplement water of carbonization system, resource rational utilization；
3, the weak aqua ammonia waste liquid in the present invention does not require ammonia concn, simple and easy to control；
4, the ammon amount of carbonization solution can be improved in the weak aqua ammonia waste liquid in the present invention, and the synthesis for helping to increase ammonium hydrogen carbonate produces
Amount, improves the ammonia recovery of carbonization system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of purification device of the present invention；
Wherein, 1 it is spray absorber, 2 be tower bottom inlet tube, 3 be air-introduced machine, 4 be tower top blow-down pipe, 5 be soft water spray head, 6 is
Soft water supplement pipe, 7 are circulating pump.
Specific embodiment
The present invention is further illustrated combined with specific embodiments below, but protection scope of the present invention is not limited to
This.
As shown in Figure 1, the purification device in the present invention includes spray absorber 1, the bottom of spray absorber 1 passes through tower bottom
Inlet tube 2 is connected with air-introduced machine 3, and the top of spray absorber 1 is connected with tower top blow-down pipe 4, and the top of spray absorber 1 is set
There is soft water spray head 5, soft water spray head 5 is connected with soft water supplement pipe 6, and soft water supplement pipe 6 is connected with circulating pump 7, circulating pump 7 and spray
Absorption tower 1 connects, and forms a circuit.
Present invention air cleaning containing ammonia is completed in the purification plant, is included the following steps：
The tower bottom import that the ammonia-containing gas that chemical fertilizer stacks the positions such as warehouse are drained into spray absorber 1 by air-introduced machine 3, contains ammonia
Gas rise during with from tower top spray and under soft water counter current contacting, since ammonia is soluble easily in water, in counter current contacting
Ammonia is completely soluble in water in the process drops to tower bottom with liquid, and the air being purified continues to rise to tower top emptying；Tower bottom
Soft water after absorbing ammonia（Weak aqua ammonia）Tower top is sent back to again through circulating pump 7, and the contact of air containing ammonia that filling into need to purify again is inhaled
It receives, repeats above-mentioned absorption process.During weak aqua ammonia circulation, according to production requirement, it is sent into carbonization system at any time as molten
Liquid supplements water and uses.
Above-described embodiment is only used for illustrating inventive concept of the invention, rather than the restriction to rights protection of the present invention,
It is all to be made a non-material change to the present invention using this design, protection scope of the present invention should all be fallen into.
Claims (4)
1. a kind of purification method of air containing ammonia, it is characterised in that include the following steps：
（1）Ammonia-containing gas are drained into the tower bottom import of spray absorber by air-introduced machine；
（2）Ammonia-containing gas are risen by tower bottom import, and tower top sprays soft water at this time, so that ammonia-containing gas and soft water counter current contacting；
（3）During counter current contacting, the ammonia in ammonia-containing gas is completely soluble in water, and drops to tower bottom with liquid, obtains
Air to purification continues to rise to tower top emptying；
（4）Soft water after tower bottom absorption ammonia sends tower top back to through circulating pump again；
（5）The contact of air containing ammonia that filling into again need to purify absorbs, and repeats above-mentioned absorption process.
2. the purification method of the air containing ammonia as described in claim 1, it is characterised in that：During the soft water circulation, it is sent into
Carbonization system is used as solution supplement water.
3. the purification method of the air containing ammonia as claimed in claim 1 or 2, it is characterised in that：The soft water is weak aqua ammonia waste liquid.
4. the purification method of the air containing ammonia as claimed in claim 3, it is characterised in that：The air cleaning containing ammonia is in purification device
Middle completion, the purification device include spray absorber, and the bottom of the spray absorber is connected with by tower bottom inlet tube
Air-introduced machine is connected with tower top blow-down pipe at the top of spray absorber, and the top of spray absorber is equipped with soft water spray head, described soft
Sprinkler head is connected with soft water supplement pipe, and the soft water supplement pipe is connected with circulating pump, and the circulating pump is connect with spray absorber,
Form a circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640089.6A CN108854451A (en) | 2018-06-21 | 2018-06-21 | A kind of purification method of the air containing ammonia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640089.6A CN108854451A (en) | 2018-06-21 | 2018-06-21 | A kind of purification method of the air containing ammonia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108854451A true CN108854451A (en) | 2018-11-23 |
Family
ID=64340171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640089.6A Pending CN108854451A (en) | 2018-06-21 | 2018-06-21 | A kind of purification method of the air containing ammonia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108854451A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4174293A4 (en) * | 2020-06-24 | 2024-11-27 | Hanwha Ocean Co., Ltd. | SHIP GREENHOUSE GAS EMISSION REDUCTION DEVICE AND SHIP COMPRISING SAME |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3792378B2 (en) * | 1997-11-21 | 2006-07-05 | 株式会社デニム | Wet ozone deodorizer |
| CN202506309U (en) * | 2012-04-20 | 2012-10-31 | 成都玉龙化工有限公司 | Ammonia washing and recovering device |
| WO2015153190A1 (en) * | 2014-03-31 | 2015-10-08 | Ineos Europe Ag | Improved ammonia removal from reactor effluent |
| CN205549974U (en) * | 2016-02-15 | 2016-09-07 | 中国庆华能源集团有限公司 | A device for retrieving ammonia that workshop section's superpressure was discharged is retrieved to ammonia |
| CN106268195A (en) * | 2016-10-13 | 2017-01-04 | 青海百事特镁业有限公司 | A kind of ammonia absorption tower device of the ammonia in high efficiente callback waste gas |
| CN107252618A (en) * | 2017-06-27 | 2017-10-17 | 河南中鸿集团煤化有限公司 | Ammonia recycling device in a kind of waste gas |
| CN206980424U (en) * | 2017-07-10 | 2018-02-09 | 湖北三宁化工股份有限公司 | Ammonia system is released retracting device |
-
2018
- 2018-06-21 CN CN201810640089.6A patent/CN108854451A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3792378B2 (en) * | 1997-11-21 | 2006-07-05 | 株式会社デニム | Wet ozone deodorizer |
| CN202506309U (en) * | 2012-04-20 | 2012-10-31 | 成都玉龙化工有限公司 | Ammonia washing and recovering device |
| WO2015153190A1 (en) * | 2014-03-31 | 2015-10-08 | Ineos Europe Ag | Improved ammonia removal from reactor effluent |
| CN205549974U (en) * | 2016-02-15 | 2016-09-07 | 中国庆华能源集团有限公司 | A device for retrieving ammonia that workshop section's superpressure was discharged is retrieved to ammonia |
| CN106268195A (en) * | 2016-10-13 | 2017-01-04 | 青海百事特镁业有限公司 | A kind of ammonia absorption tower device of the ammonia in high efficiente callback waste gas |
| CN107252618A (en) * | 2017-06-27 | 2017-10-17 | 河南中鸿集团煤化有限公司 | Ammonia recycling device in a kind of waste gas |
| CN206980424U (en) * | 2017-07-10 | 2018-02-09 | 湖北三宁化工股份有限公司 | Ammonia system is released retracting device |
Non-Patent Citations (1)
| Title |
|---|
| 潘灼南等: "《氮肥工业》", 31 March 1964, 中国工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4174293A4 (en) * | 2020-06-24 | 2024-11-27 | Hanwha Ocean Co., Ltd. | SHIP GREENHOUSE GAS EMISSION REDUCTION DEVICE AND SHIP COMPRISING SAME |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 312000 Linhai Road, Doumen Town, Yuecheng District, Shaoxing City, Zhejiang Province Applicant after: Shaoxing Fengdeng Environmental Protection Co., Ltd. Address before: 312000 Linhai Road, Doumen Town, Yuecheng District, Shaoxing City, Zhejiang Province Applicant before: Shaoxing Chemical Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181123 |