CN203315974U - Carbon dioxide capture and purification device - Google Patents
Carbon dioxide capture and purification device Download PDFInfo
- Publication number
- CN203315974U CN203315974U CN2013202398226U CN201320239822U CN203315974U CN 203315974 U CN203315974 U CN 203315974U CN 2013202398226 U CN2013202398226 U CN 2013202398226U CN 201320239822 U CN201320239822 U CN 201320239822U CN 203315974 U CN203315974 U CN 203315974U
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- heat exchange
- regenerator
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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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
- 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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- Carbon And Carbon Compounds (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model provides a carbon dioxide capture and purification device. The carbon dioxide capture and purification device comprises an absorption tower, a heat exchange partition regeneration tower, a heat pump set, a heat exchanger, a reboiling tower, a flash evaporator and an air blower, wherein exhaust gas in a coal-fired power plant is connected with an inlet of the heat pump set, the heat pump set is connected with the bottom of the absorption tower through the air blower, a liquid outlet of the heat pump set is connected with an inlet of the heat exchanger through a liquid pump, and an outlet of the heat exchanger is connected with a reflux inlet of the heat pump set; a rich liquid bottom outlet of the absorption tower is connected with a heated liquid inlet of the heat exchanger, a heated liquid outlet is connected with a rich liquid inlet in the interlayer of the middle of the heat exchange partition regeneration tower through a control valve, a barren liquid outlet in the bottom of the heat exchange partition regeneration tower is connected with the reboiling tower, a lithium bromide recovery device and a barren liquid inlet of the liquid pump in parallel through control valves, a barren liquid outlet of the reboiling tower is connected with a barrel liquid inlet in the bottom of the heat exchange partition regeneration tower, a rich liquid outlet in the top of the heat exchange partition regeneration tower is connected with a rich liquid inlet of a cooler, and a rich liquid outlet of the cooler is connected with a rich liquid inlet of the flash evaporator, and CO2 products flashed off by the flash evaporator are output.
Description
Technical field
The utility model relates to the coal-fired plant flue gas process field, collecting carbonic anhydride, purification devices that particularly coal-burning power plant uses.
Background technology
Carbon dioxide is global warming, produces the one of the main reasons of extreme climate disaster.Collecting carbonic anhydride and purifying become the hot research problem in recent years.Coal-burning power plant is the main electric power of China and ardent source of supply, is also maximum CO2 emission source.Carbon dioxide after trapping, purifying is sealed up for safekeeping in discarded oil reservoir in order to the displacement of reservoir oil and by it, there is important economic and social benefit.
Existing collecting carbonic anhydride, purifying process mainly rely on monoethanolamine (MEA) as solvent, through absorbing and two processes of desorb, obtain the carbon dioxide of high concentration.These two processes are accompanied by repeatedly cooling and heat absorption, and capacity usage ratio is low.
Summary of the invention
The utility model provides a kind of Novel carbon dioxide trapping, purification devices, and energy consumes low, and treatment effect is good, is a kind of desirable collecting carbonic anhydride, purification devices.
The technical solution of the utility model is achieved in the following ways:
The utility model comprises absorption tower, heat exchange next door regenerator, heat pump group, heat exchanger, boil tower, flash vessel, air blast, lithium bromide storage tank and control valve again, it is characterized in that coal-fired plant flue gas is connected with the import of heat pump group, the gas outlet of heat pump group is connected with the bottom, absorption tower by air blast, heat pump group liquid outlet is connected with the heat exchanger import by liquor pump, and heat exchanger exit is connected with the refluxing opening of heat pump group, absorption tower rich solution outlet at bottom is connected with the liquid-inlet that is heated of heat exchanger by liquor pump, being heated liquid outlet is connected with the interlayer rich solution import of heat exchange next door regenerator middle part by control valve, at the bottom of the regenerator of heat exchange next door, the lean solution outlet is by control valve and reboiler, lithium bromide recover and liquor pump lean solution inlet parallel, the lean solution outlet of reboiler is connected with the lean solution import of heat exchange next door regenerator bottom, the rich solution outlet of heat exchange regenerator top is connected with the import of cooler rich solution, the outlet of cooler rich solution is connected with the import of flash vessel rich solution, the CO2 product that flash vessel flashes off is outer defeated, the lean solution outlet of flash vessel is connected with the interlayer of heat exchange next door regenerator by control valve, the liquid delivery side of pump is connected with the lithium bromide jet pipe in top, absorption tower with after lithium bromide storage tank outlet parallel connection by cooler.
Compared with the prior art the utility model has the following advantages:
(1) use the unit reinforcement technique, with heat exchange next door regenerator, completed regeneration and heat reciprocal process, improved energy utilization efficiency, reduced equipment volume.
(2) take full advantage of fume afterheat by the heat pump group rich solution is carried out to preheating, improved energy utilization efficiency.
(3) the utility model system architecture compactness, trapping is good with purification effect, and technique is reasonable, is easy to promote.
The accompanying drawing explanation
Fig. 1-schematic flow sheet of the present utility model;
1-lithium bromide storage tank in figure, 2-absorption tower, 3-air blast, 4-heat pump group, 5,8,14,15, the 19-control valve, 6,7, the 10-liquor pump, 9-heat exchanger, 11-lithium bromide recover, the 12-reboiler, 13-heat exchange next door regenerator, 16, the 18-cooler, 17-flash vessel.
The specific embodiment
For further disclosing the technical solution of the utility model, below in conjunction with Figure of description, by the specific embodiment, elaborate:
The utility model comprises absorption tower 2, heat exchange next door regenerator 3, heat pump group 4, heat exchanger 9, reboiler 12, flash vessel 17, air blast 3, lithium bromide storage tank 1 and control valve, it is characterized in that coal-fired plant flue gas is connected with the import of heat pump group, the gas outlet of heat pump group is connected with 2 bottoms, absorption tower by air blast 3, heat pump group 4 liquid outlets are connected with heat exchanger 9 imports by liquor pump, and heat exchanger 9 outlets are connected with the refluxing opening of heat pump group 4, absorption tower 2 rich solution outlet at bottoms are connected with the liquid-inlet that is heated of heat exchanger 9 by liquor pump, being heated liquid outlet is connected with the 13 middle part interlayer rich solution imports of heat exchange next door regenerator by control valve, the outlet of heat exchange next door regenerator 13 end lean solution is by control valve and reboiler 12, lithium bromide recover and liquor pump lean solution inlet parallel, the lean solution outlet of reboiler is connected with the lean solution import of heat exchange next door regenerator bottom, the rich solution outlet of heat exchange regenerator top is connected with the import of condenser rich solution, the outlet of condenser rich solution is connected with the import of flash vessel rich solution, the CO2 product that flash vessel flashes off is outer defeated, the lean solution outlet of flash vessel 17 is connected with the interlayer of heat exchange next door regenerator by control valve, the liquid delivery side of pump is connected with the lithium bromide shower nozzle in top, absorption tower with after lithium bromide storage tank outlet parallel connection by cooler.
Operation principle of the present utility model and process:
Coal-fired plant flue gas through control valve 5 enter heat pump group 4 cooling after, send into 2 bottoms, absorption tower by air blast 3, the lithium bromide solvent is 2 top sprays on absorption tower, and in filler, the lithium bromide solvent fully contacts absorbing carbon dioxide with flue gas, become rich solution 2 rich bottoms liquid outlet discharges through absorption tower.The flue gas of removing carbon dioxide is 2 top discharges through absorption tower.
Rich solution enters heat exchanger 9 through pump 6.Thermophore is entered heat exchanger 9 by flue gas by liquor pump 7 and control valve 8 in heat pump group 4, and rich solution is carried out to the pre-heat treatment.Cooledly at thermophore, reenter heat pump group 4, recycle.
Rich solution after preheating, from the outlet of the rich solution of heat exchanger 9, enters the interlayer of heat exchange next door regenerator 13 through control valve 14, rich solution at first in interlayer with regeneration after lean solution carry out heat exchange, further be preheated.The partial regeneration lean solution that regenerator 13 bottoms in heat exchange next door are got rid of reenters heat exchange next door regenerator 13 after reboiler 12 heating.Rich solution is fully heated in heat exchange next door regenerator 13, after regenerator 13 tops, heat exchange next door enter cooler 16, be cooling, enters flash vessel 17, resolves into lean solution and carbon dioxide product.Lean solution enters again 13 pairs of rich solutions from heat exchanger 9 of heat exchange next door regenerator through control valve 15 and carries out preheating.
Cooled lean solution is through regenerator 13 bottoms, heat exchange next door, after separating, defective lean solution enters lithium bromide recover 11, and qualified lean solution enters cooler 18 through liquor pump 10, cooled lean solution enters absorption tower 2 through control valve 19, absorbs the carbon dioxide in flue gas.The new lithium bromide of part enters absorption tower 2 from lithium bromide storage tank 1, the lithium bromide that replenish lost is fallen simultaneously.
Claims (1)
1. a collecting carbonic anhydride, purification devices, comprise absorption tower, heat exchange next door regenerator, heat pump group, heat exchanger, boil tower, flash vessel, air blast, lithium bromide storage tank and control valve again, it is characterized in that coal-fired plant flue gas is connected with the import of heat pump group, the gas outlet of heat pump group is connected with the bottom, absorption tower by air blast, heat pump group liquid outlet is connected with the heat exchanger import by liquor pump, and heat exchanger exit is connected with the refluxing opening of heat pump group, absorption tower rich solution outlet at bottom is connected with the liquid-inlet that is heated of heat exchanger by liquor pump, being heated liquid outlet is connected with the interlayer rich solution import of heat exchange next door regenerator middle part by control valve, at the bottom of the regenerator of heat exchange next door, the lean solution outlet is by control valve and reboiler, lithium bromide recover and liquor pump lean solution inlet parallel, the lean solution outlet of reboiler is connected with the lean solution import of heat exchange next door regenerator bottom, the rich solution outlet of heat exchange regenerator top is connected with the import of cooler rich solution, the outlet of cooler rich solution is connected with the import of flash vessel rich solution, the CO2 product that flash vessel flashes off is outer defeated, the lean solution outlet of flash vessel is connected with the interlayer of heat exchange next door regenerator by control valve, the liquid delivery side of pump is connected with the lithium bromide jet pipe in top, absorption tower with after lithium bromide storage tank outlet parallel connection by cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202398226U CN203315974U (en) | 2013-05-07 | 2013-05-07 | Carbon dioxide capture and purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202398226U CN203315974U (en) | 2013-05-07 | 2013-05-07 | Carbon dioxide capture and purification device |
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| Publication Number | Publication Date |
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| CN203315974U true CN203315974U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013202398226U Expired - Fee Related CN203315974U (en) | 2013-05-07 | 2013-05-07 | Carbon dioxide capture and purification device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535723A (en) * | 2014-12-25 | 2015-04-22 | 华能国际电力股份有限公司 | Variable working condition thick slurry type carbon dioxide capture process test system |
| CN106039960A (en) * | 2016-06-13 | 2016-10-26 | 大连理工大学 | Carbon dioxide capturing and liquefying process stepwise utilizing smoke waste heat |
| CN109453620A (en) * | 2018-11-27 | 2019-03-12 | 中国科学院力学研究所 | A kind of carbon capture and waste heat recycle coupling device |
| CN113828120A (en) * | 2021-11-01 | 2021-12-24 | 中国船舶重工集团公司第七一一研究所 | Low-energy-consumption marine diesel engine flue gas CO2Trapping system |
| CN115077130A (en) * | 2022-05-31 | 2022-09-20 | 上海交通大学 | Double-heat-source heat pump type air carbon direct trapping system |
| WO2023168925A1 (en) * | 2022-03-09 | 2023-09-14 | 清华大学 | Carbon dioxide capture system based on phase change absorbent |
-
2013
- 2013-05-07 CN CN2013202398226U patent/CN203315974U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535723A (en) * | 2014-12-25 | 2015-04-22 | 华能国际电力股份有限公司 | Variable working condition thick slurry type carbon dioxide capture process test system |
| CN106039960A (en) * | 2016-06-13 | 2016-10-26 | 大连理工大学 | Carbon dioxide capturing and liquefying process stepwise utilizing smoke waste heat |
| CN106039960B (en) * | 2016-06-13 | 2018-04-24 | 大连理工大学 | A kind of collecting carbonic anhydride liquefaction process of cascade utilization fume afterheat |
| CN109453620A (en) * | 2018-11-27 | 2019-03-12 | 中国科学院力学研究所 | A kind of carbon capture and waste heat recycle coupling device |
| CN113828120A (en) * | 2021-11-01 | 2021-12-24 | 中国船舶重工集团公司第七一一研究所 | Low-energy-consumption marine diesel engine flue gas CO2Trapping system |
| WO2023168925A1 (en) * | 2022-03-09 | 2023-09-14 | 清华大学 | Carbon dioxide capture system based on phase change absorbent |
| CN115077130A (en) * | 2022-05-31 | 2022-09-20 | 上海交通大学 | Double-heat-source heat pump type air carbon direct trapping system |
| CN115077130B (en) * | 2022-05-31 | 2023-03-10 | 上海交通大学 | Double-heat-source heat pump type air carbon direct trapping system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20180507 |
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| CF01 | Termination of patent right due to non-payment of annual fee |