CN1064458A - 3-c hydrocarbon decarbonizing process and device thereof - Google Patents
3-c hydrocarbon decarbonizing process and device thereof Download PDFInfo
- Publication number
- CN1064458A CN1064458A CN91101928A CN91101928A CN1064458A CN 1064458 A CN1064458 A CN 1064458A CN 91101928 A CN91101928 A CN 91101928A CN 91101928 A CN91101928 A CN 91101928A CN 1064458 A CN1064458 A CN 1064458A
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- China
- Prior art keywords
- gas
- air
- absorption tower
- hydrocarbon
- ammonia
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
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- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The present invention relates to technology and device thereof in the chemical fertilizers production flow process.The 3-c hydrocarbon decarbonizing process process mainly by absorption---flash distillation---gas put forward three parts and form, it is that air K advances ammonia cooler 3 and flows into air water separators 4 dehydrations, advances gas blower 8 again and sends into regenerator column 7.Its device ammonia cooler 3 and air water separator 4 of being equiped with in parallel on the pipeline 10 between gas blower 8 and the strainer 9, bend pipe 5 is all installed in ammonia cooler 3 and air water separator 4 bottoms.Summer not decrement produce synthetic ammonia, reduce carbon dioxide content, solvent consumption and saves energy in the purified gas.
Description
The present invention relates to technology and device thereof in the chemical fertilizers production flow process, be mainly used in the carbonic acid gas that removes in the synthetic-ammonia transformation gas.
At present, adopt propylene carbonate to remove carbonic acid gas (being commonly called as 3-c hydrocarbon decarbonizing) technology and device thereof in the conversion gas in Ammonia Production, as " southization is scientific and technological " N in 1984
2 " propylene carbonate removes CO
2With H
2S " and " chemical fertilizer industry " N in 1988
In 1 " propylene carbonate decarburization technique and improvement imagination " literary composition, the 3-c hydrocarbon decarbonizing process process is mainly put forward three parts by absorption-flash distillation-gas and is formed; Device mainly is made up of absorption tower, flash drum, solvent pump, regenerator column, gas blower, pipeline.Its technology and device are just with low changing air (conversion gas) cooled dehydrated, and air is not carried out cooled dehydrated, third carbon is carried, is contacted with gas exhaust gas (envrionment temperature) through normal pressure desorb, gas, the third carbon temperature rises to some extent, the poor solubility of carbonic acid gas in third carbon influences the carbonic acid gas effect in third carbon absorption conversion gas; Especially summer, air themperature was more than 30 ℃, and the 3-c hydrocarbon decarbonizing effect descends, and caused production decrement and running cost to improve, even forced the stopping production phenomenon.So, need change new creation to former 3-c hydrocarbon decarbonizing process and device thereof.
The purpose of this invention is to provide 3-c hydrocarbon decarbonizing process and device thereof that the cooling air dehydration is arranged in a kind of Ammonia Production flow process.
Realize above-mentioned purpose of the present invention by following design and mode:
This 3-c hydrocarbon decarbonizing process comprises that conversion gas goes into absorption tower bottom, contacts with the top-down third carbon anti-phase and removes CO
2After, purified gas comes out from the top, absorption tower; Absorb CO
2After third carbon come out from absorption tower bottom, this third carbon (rich solution) advances the desorb of normal pressure desorption device, often vent one's spleen and discharge from the top, often separating liquid goes into gas by potential difference and carries device, after air gas is carried, gas stripping gas is discharged from the top, after carrying the gas extract (lean solution) that device bottom comes out from gas and squeezing into the cooling of solvent ammonia cooler by solvent pump, enters the absorption tower circulation; Its air that is the gas drawings is gone into the cooling of air ammonia cooler after filtering through filter, again through the dehydration of air water separator, sends into gas by gas blower and carries device and do the gas drawings.
This 3-c hydrocarbon decarbonizing device, comprise absorption tower, solvent ammonia cooler, solvent pump, regenerator column, gas blower, strainer, pipeline, safety vent valve, it is air ammonia cooler and the air water separator of being equiped with in parallel on the pipeline between gas blower and the strainer, be connected with the liquefied ammonia total pipeline at the bottom of the air ammonia cooler, the spilling water bend pipe is all installed in air ammonia cooler and air water separator bottom.
The present invention adopts the air cooling dehydration, and the degree of purification of 3-c hydrocarbon decarbonizing is improved, summer not decrement produce synthetic ammonia; And, also have advantages such as the solvent consumption of reduction and saves energy.
Accompanying drawing is represented 3-c hydrocarbon decarbonizing process of the present invention and device concrete structure thereof.
Fig. 1 is this 3-c hydrocarbon decarbonizing process and device thereof.
Describe details of the present invention and operating mode in detail below in conjunction with accompanying drawing.
This 3-c hydrocarbon decarbonizing process comprises that conversion gas B goes into 1 end of absorption tower, contacts with the top-down third carbon P anti-phase and removes CO
2After, purified gas J comes out at 1 top from the absorption tower; The third carbon P goes into tower in 1 top from the absorption tower, absorbs CO
2Come out 1 bottom from the absorption tower in the back, this third carbon P(rich solution) advances normal pressure desorption device C desorb, often vent one's spleen and discharge from the top, often separating liquid goes into gas by potential difference and carries device Q, after air gas is carried, gas stripping gas is discharged from the top, after carrying the gas extract (lean solution) that device Q bottom comes out from gas and squeezing into 2 coolings of solvent ammonia cooler by solvent pump, enters absorption tower 1 circulation; Its air K that is the gas drawings goes into 3 coolings of air ammonia cooler after filtering through filter 9, again through 4 dehydrations of air water separator, sends into gas by gas blower 8 and carries device Q and do the gas drawings.
This third carbon arm carbon device, comprise absorption tower 1, solvent ammonia cooler 2, solvent pump 6, regenerator column 7, gas blower 8, strainer 9, pipeline 10, safety vent valve 11, it is air ammonia cooler 3 and the air water separator 4 of being equiped with in parallel on the pipeline 10 between gas blower 8 and the strainer 9,3 ends of air ammonia cooler, be connected with liquefied ammonia total pipeline 10, air ammonia cooler 3 is all installed bend pipe 5 with air water separator 4 bottoms, and bend pipe plays automatic spilling water effect.
In summer, the stopping valve F between this 3-c hydrocarbon decarbonizing device middle filtrator 9 and the gas blower 8 is closed, open the stopping valve F between strainer 9 and the air ammonia cooler 3
X
The liquefied ammonia NL of liquefied ammonia total pipeline 10 enters solvent ammonia cooler 2 and air ammonia cooler 3 respectively, and the liquefied ammonia evaporation makes third carbon and air cooling, the gas ammonia NG air inlet ammonia total pipeline 10 after the evaporation.The third carbon P comes out from regenerator column 7 bottoms, advance solvent pump 6 and send into solvent ammonia cooler 2, cool off 1 top, laggard absorption tower and go into the tower absorbing carbon dioxide, third carbon (rich solution) comes out 1 bottom from the absorption tower, flow into regenerator column 8 top atmospheric flash vessel C, after flowing into gas after the flash distillation and carrying device Q gas and carry, enter solvent pump 6 from regenerator column 7 bottoms again and constantly circulate.Air K goes into air ammonia cooler 3 through filter 9, cools off laggard air water separator 4, and air is carried out cooled dehydrated, behind the separation moisture, sends into regenerator column 7 by gas blower 8 and does the gas drawings; The third carbon P temperature in summer is controlled at about 15 ℃, and the purifying carbon dioxide index is lower than 0.8%.Thereby, reduce effects such as solvent consumption and saves energy.
Claims (3)
1, a kind of 3-c hydrocarbon decarbonizing process comprises that umformer (B) goes into the end, absorption tower (1), contacts with top-down third carbon (P) anti-phase and removes CO
2After, purified gas J comes out at (1) top from the absorption tower; Third carbon (P) is gone into tower in (1) top from the absorption tower, absorbs CO
2Come out (1) bottom from the absorption tower in the back, this third carbon (P) advances normal pressure desorption device C desorb, often vent one's spleen and discharge from the top, often separating liquid goes into gas by potential difference and carries device Q, after air gas is carried, gas stripping gas is discharged from the top, after carrying the gas extract (lean solution) that device Q bottom comes out from gas and squeezing into solvent ammonia cooler (2) cooling by solvent pump, enters absorption tower (1) circulation; The air K that it is characterized in that the gas drawings goes into air ammonia cooler (3) cooling after filtering through filter (9), again through 4 dehydrations of air water separator, sends into gas by gas blower (8) and carries device Q and do the gas drawings.
2, a kind of 3-c hydrocarbon decarbonizing device, comprise absorption tower (1), solvent ammonia cooler (2), solvent pump (6), regenerator column (7), gas blower (8), strainer (9), pipeline (10), safety vent valve (11), it is characterized in that gas blower (8) and last atmospheric oxygen cooler (3) and the air water separator (4) of being equiped with in parallel of the pipeline (10) between the strainer (9), air ammonia cooler (3) end, be connected with liquefied ammonia total pipeline (10).
3,3-c hydrocarbon decarbonizing device according to claim 2 is characterized in that said air ammonia cooler (3) and air water separator (4) bottom all install bend pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91101928A CN1028011C (en) | 1991-03-25 | 1991-03-25 | 3-c hydrocarbon decarbonizing process and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91101928A CN1028011C (en) | 1991-03-25 | 1991-03-25 | 3-c hydrocarbon decarbonizing process and device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1064458A true CN1064458A (en) | 1992-09-16 |
| CN1028011C CN1028011C (en) | 1995-03-29 |
Family
ID=4905337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91101928A Expired - Fee Related CN1028011C (en) | 1991-03-25 | 1991-03-25 | 3-c hydrocarbon decarbonizing process and device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1028011C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337722C (en) * | 2002-04-15 | 2007-09-19 | 弗劳尔公司 | Configurations and methods for improved acid gas removal |
| CN101830462A (en) * | 2010-06-03 | 2010-09-15 | 清华大学 | CO2 trapping method combining dimethyl carbonate absorption and membrane desorption |
| CN103922340A (en) * | 2013-08-25 | 2014-07-16 | 贵州兴化化工股份有限公司 | CO2 recovery improvement method in decarburization process |
| CN114214097A (en) * | 2021-12-17 | 2022-03-22 | 霖和气候科技(北京)有限公司 | Method for removing carbon dioxide in natural gas at normal temperature |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101254388B (en) * | 2008-04-03 | 2010-08-04 | 清华大学 | Carbon elimination technique using dimethyl carbonate as absorbing agent |
-
1991
- 1991-03-25 CN CN91101928A patent/CN1028011C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337722C (en) * | 2002-04-15 | 2007-09-19 | 弗劳尔公司 | Configurations and methods for improved acid gas removal |
| CN101830462A (en) * | 2010-06-03 | 2010-09-15 | 清华大学 | CO2 trapping method combining dimethyl carbonate absorption and membrane desorption |
| CN103922340A (en) * | 2013-08-25 | 2014-07-16 | 贵州兴化化工股份有限公司 | CO2 recovery improvement method in decarburization process |
| CN114214097A (en) * | 2021-12-17 | 2022-03-22 | 霖和气候科技(北京)有限公司 | Method for removing carbon dioxide in natural gas at normal temperature |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1028011C (en) | 1995-03-29 |
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