CN201603511U - Carbon dioxide trapping system in coal-fired power plant smoke - Google Patents
Carbon dioxide trapping system in coal-fired power plant smoke Download PDFInfo
- Publication number
- CN201603511U CN201603511U CN201020000778XU CN201020000778U CN201603511U CN 201603511 U CN201603511 U CN 201603511U CN 201020000778X U CN201020000778X U CN 201020000778XU CN 201020000778 U CN201020000778 U CN 201020000778U CN 201603511 U CN201603511 U CN 201603511U
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- Prior art keywords
- carbon dioxide
- absorption tower
- gas
- flue gas
- dioxide
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/32—Direct CO2 mitigation
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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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- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a carbon dioxide trapping system in coal-fired power plant smoke, which comprises an absorption tower, a regenerating tower, a regenerating gas condenser, a lean-rich liquid heat exchanger, a carbon dioxide separator and a carbon dioxide compressor. Matching arrangement of the absorption tower and the regenerating tower enables a large amount of carbon dioxide gas emitted by a coal-fired power plant boiler to be trapped, thereby reducing emission of greenhouse gas, and protecting human environment. Simultaneously, the carbon dioxide gas can be timely used by directly leading the trapped carbon dioxide gas into the process flow of preparing soda ash and ammonium chloride through a combined method, thereby optimizing integral production process, and reducing loss of the carbon dioxide gas.
Description
Technical field
The utility model relates to gas cleaning and process field, particularly a kind of trapping carbon dioxide in flue gas system.
Background technology
The sharp increase of CO2 emissions, because greenhouse effects, can bring the acute variation of weather, the ecosystem and the minimizing of drinking water, can cause also simultaneously that sea level rise, land reduces and on average harm such as the temperature rises, and the CO2 emission of China coal-burning power plant accounts for about half of industrial discharge total amount, therefore, the CO2 emission of control coal-burning power plant, extremely urgent.
At present, separate with reclaim flue gas in the method for carbon dioxide mainly contain that absorption and separation, adsorbing separation, film are separated, cryogenic separation, O
2/ CO
2Burning separation etc., wherein absorption and separation method and adsorption method of separation are comparatively ripe, use more extensive.But, limited applying of coal-burning power plant's carbon dioxide discharge-reduction technology owing to also do not have business-like coal-fired plant flue gas carbon dioxide application technology as the second resource at present.
The utility model content
In view of this, the utility model provides a kind of trapping carbon dioxide in flue gas system that is used to capture, this system handles efficient height, and implementation result is good, can realize the capture of carbon dioxide and handle integrated.
The purpose of this utility model provides a kind of trapping carbon dioxide in flue gas system, the trapping carbon dioxide in flue gas system, comprise absorption tower and regenerator, described carbon dioxide capture system also comprises regeneration gas condenser, poor rich liquid heat exchanger, carbon dioxide separator and carbon-dioxide gas compressor;
The flue gas discharge opening of coal-burning power plant links to each other with the bottom on absorption tower after boosting by air-introduced machine, flue gas moves from the bottom up, form counter current contacting with the ethanolamine solutions that is used for absorbing carbon dioxide of going into tower from top, absorption tower, the flue gas that has removed carbon dioxide is discharged from the flue gas discharge opening on absorption tower, the bottom on described absorption tower is provided with the rich solution outlet, described rich solution outlet by the rich solution pump successively with the regeneration gas condenser, poor rich liquid heat exchanger is connected with regenerator, after the rich solution that has absorbed the titanium dioxide tower enters the regeneration gas condenser by the pressurization of rich solution pump, after the regeneration gas heating, enter poor rich liquid heat exchanger and lean solution heat exchange, again by entering regenerator inside behind the regenerator top shower nozzle spray, the gas outlet, top of described regenerator is connected with carbon dioxide separator with the regeneration gas condenser successively, the gas discharge outlet of described titanium dioxide column separator is connected with carbon-dioxide gas compressor, and the pressurization gas outlet of described carbon-dioxide gas compressor utilizes equipment to be connected with outside carbon dioxide.
Further, the top of described absorption cat head is provided with washing section and demister, enters atmosphere after the clean flue gas that has removed carbon dioxide is removed solution in the absorption tower upper wash and by demister;
Further, described system also comprises cleaning solution holding tank and washing liquid pump, and described cleaning solution holding tank is connected with the absorption tower, is used to store the washings that swap out from the absorption tower; Described washing liquid pump one end is connected with the cleaning solution holding tank, and the other end is connected to the washing section on absorption tower, is used for the washings in the washings holding tank are delivered to washing section;
Further, described outside carbon dioxide utilizes equipment to make the equipment of soda ash and ammonium chloride simultaneously for adopting combination method.
The beneficial effects of the utility model are:
1. the utility model is arranged by the cooperation of absorption tower and regenerator, and the great amount of carbon dioxide gas that coal-fired plant boiler is discharged obtains capturing, and has reduced the discharging of greenhouse gases, the protection human environment; By the carbon dioxide that captures is directly introduced associating legal system soda ash and ammonia chloride craft flow process, make carbon dioxide can in time obtain utilizing simultaneously, optimized integral production technology, reduced the loss of carbon dioxide;
2. by regeneration gas condenser and poor rich liquid heat exchanger rich solution is carried out twice heating before entering regenerator, thereby reduced the energy loss of system, also help the fast desorption of carbon dioxide in the rich solution;
3. system architecture compactness of the present utility model, good separating effect, reasonable, the instant effect of flow setting are fit to promote the use of.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can realize and obtain by following specification and claims.
Description of drawings
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model is described in further detail, wherein:
Fig. 1 is a trapping system structural representation of the present utility model;
Fig. 2 is associating legal system soda ash and ammonia chloride craft schematic flow sheet.
The specific embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only for the utility model is described, rather than in order to limit protection domain of the present utility model.
As shown in Figure 1, trapping carbon dioxide in flue gas of the present utility model system comprises absorption tower 1 and regenerator 4, regeneration gas condenser 2, poor rich liquid heat exchanger 3, carbon dioxide separator 5 and carbon-dioxide gas compressor;
The flue gas discharge opening of coal-burning power plant links to each other with the bottom on absorption tower 1 after boosting by air-introduced machine, flue gas moves from the bottom up, the ethanolamine solutions that is used for absorbing carbon dioxide of going into tower with 1 top from the absorption tower forms counter current contacting, be provided with washing section and demister at the top that absorbs cat head, enter atmosphere after the clean flue gas that has removed carbon dioxide is removed solution in the absorption tower upper wash and by demister.Native system also comprises cleaning solution holding tank 6 and washing liquid pump 7, and cleaning solution holding tank 6 is connected with absorption tower 1, is used to store 1 washings that swap out from the absorption tower; Washing liquid pump 7 one ends are connected with the cleaning solution holding tank, and the other end is connected to the washing section on absorption tower 1, is used for the washings in the washings holding tank 6 are delivered to washing section.
The bottom on absorption tower 1 is provided with the rich solution outlet, the rich solution outlet by the rich solution pump successively with regeneration gas condenser 2, poor rich liquid heat exchanger 3 is connected with regenerator 4, after the rich solution that has absorbed the titanium dioxide tower enters regeneration gas condenser 2 by the pressurization of rich solution pump, after the regeneration gas heating, enter poor rich liquid heat exchanger 3 and lean solution heat exchange, again by entering regenerator 1 inside behind the regenerator 1 top shower nozzle spray, the gas outlet, top of regenerator 1 is connected with carbon dioxide separator 3 with regeneration gas condenser 2 successively, the gas discharge outlet of titanium dioxide column separator 3 is connected with carbon-dioxide gas compressor, and the pressurization gas outlet of carbon-dioxide gas compressor utilizes equipment to be connected with outside carbon dioxide.
The principle of absorption portion is that the employing liquid solution optionally removes the gas part (being carbon dioxide) that is dissolved in absorption liquid easily in flue gas, flue gas passes through desulphurization denitration, after the dedusting, in tower, do reverse the contact by blower fan by entering with absorption liquid from top to down below the absorption tower, gas leaves the absorption tower after finishing dealing with, enter washing section then, moisture that carries in the gas and lyosoption can remove and send back to the absorption tower from gas, the gas that leaves the absorption tower is discharged in the atmosphere, the absorbent solution that has absorbed carbon dioxide enters regenerator, remove the carbon dioxide in the solution and obtain regeneration.
Regenerative process is steam and rich solution heat exchange in regenerator, after discharging, the carbon dioxide of rich solution become lean solution, lean solution and steam enter flash tank, most of steam returns regenerator, it is recycling that lean solution is returned the absorption tower, and born again carbon dioxide enters the carbon dioxide separator, after the realization gas-liquid separation, carbon dioxide compresses by carbon-dioxide gas compressor again, so that next step application.
The principle that the utility model removes carbon dioxide is to utilize alkaline absorbent solution to contact concurrent biochemical reaction with carbon dioxide in the flue gas, form unsettled salt, and salt under certain conditions can reverse decomposition release of carbon dioxide and regenerate, thereby reaches the purpose that the carbon dioxide in the flue gas is separated.
Carbon dioxide of the present utility model utilizes equipment to make the equipment of soda ash and ammonium chloride simultaneously for adopting combination method.As shown in Figure 2, associating legal system soda ash and ammonia chloride craft flow process comprise soda ash production process and Production of Ammonium Chloride process, two processes constitute a circulatory system, by add raw material ammonia, salt and carbon dioxide continuously in the circulatory system, constantly produce soda ash and ammonium chloride product simultaneously;
Wherein, the soda ash production process is the mother liquor II that the Production of Ammonium Chloride process is sent here, inhale ammonia and become ammonia mother liquor II, by in carbonators, feeding carbon dioxide and make it cooling to ammonia mother liquor II, make sodium chloride and ammonium salt (ammonia, carbon dioxide, water reaction) among the ammonia mother liquor II change into sodium acid carbonate and ammonium chloride, then the sodium acid carbonate crystallization is leached, this moment, the mother liquor that leaches was called mother liquor I, the sodium acid carbonate crystallization that leaches send calcining light soda ash;
The Production of Ammonium Chloride process is the mother liquor I that will obtain in the soda ash production process, after suction ammonia becomes ammonia mother liquor I, process heat exchange cooling, enter cool crystallizer and salting-out crystallizer, ammonium chloride crystals is separated out, obtain ammonium chloride product through separation, drying again, the mother liquor that leaches is ammonia mother liquor II, is sent to the soda ash production process.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. the trapping carbon dioxide in flue gas system comprises absorption tower and regenerator, it is characterized in that: described carbon dioxide capture system also comprises regeneration gas condenser, poor rich liquid heat exchanger, carbon dioxide separator and carbon-dioxide gas compressor;
The flue gas discharge opening of coal-burning power plant links to each other with the bottom on absorption tower after boosting by air-introduced machine, flue gas moves from the bottom up, form counter current contacting with the ethanolamine solutions that is used for absorbing carbon dioxide of going into tower from top, absorption tower, the flue gas that has removed carbon dioxide is discharged from the flue gas discharge opening on absorption tower, the bottom on described absorption tower is provided with the rich solution outlet, described rich solution outlet by the rich solution pump successively with the regeneration gas condenser, poor rich liquid heat exchanger is connected with regenerator, after the rich solution that has absorbed the titanium dioxide tower enters the regeneration gas condenser by the pressurization of rich solution pump, after the regeneration gas heating, enter poor rich liquid heat exchanger and lean solution heat exchange, again by entering regenerator inside behind the regenerator top shower nozzle spray, the gas outlet, top of described regenerator is connected with carbon dioxide separator with the regeneration gas condenser successively, the gas discharge outlet of described titanium dioxide column separator is connected with carbon-dioxide gas compressor, and the pressurization gas outlet of described carbon-dioxide gas compressor utilizes equipment to be connected with outside carbon dioxide.
2. trapping carbon dioxide in flue gas according to claim 1 system, it is characterized in that: the top of described absorption cat head is provided with washing section and demister, enters atmosphere after the clean flue gas that has removed carbon dioxide is removed solution in the absorption tower upper wash and by demister.
3. trapping carbon dioxide in flue gas according to claim 2 system, it is characterized in that: described system also comprises cleaning solution holding tank and washing liquid pump, described cleaning solution holding tank is connected with the absorption tower, is used to store the washings that swap out from the absorption tower; Described washing liquid pump one end is connected with the cleaning solution holding tank, and the other end is connected to the washing section on absorption tower, is used for the washings in the washings holding tank are delivered to washing section.
4. trapping carbon dioxide in flue gas according to claim 1 system is characterized in that: described outside carbon dioxide utilizes equipment to make the equipment of soda ash and ammonium chloride simultaneously for adopting combination method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020000778XU CN201603511U (en) | 2010-01-14 | 2010-01-14 | Carbon dioxide trapping system in coal-fired power plant smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020000778XU CN201603511U (en) | 2010-01-14 | 2010-01-14 | Carbon dioxide trapping system in coal-fired power plant smoke |
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| Publication Number | Publication Date |
|---|---|
| CN201603511U true CN201603511U (en) | 2010-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020000778XU Expired - Lifetime CN201603511U (en) | 2010-01-14 | 2010-01-14 | Carbon dioxide trapping system in coal-fired power plant smoke |
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| CN (1) | CN201603511U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635873A (en) * | 2011-02-09 | 2012-08-15 | 熊正毅 | Method for capturing and circulating carbon dioxide in ordinary power plant boiler |
| CN103191633A (en) * | 2013-04-09 | 2013-07-10 | 浙江大学 | Device and method for electrically acquiring and purifying carbon dioxide |
| CN103370121A (en) * | 2011-01-06 | 2013-10-23 | 阿尔斯通技术有限公司 | Method and system for removal of gaseous contaminants |
| CN106276982A (en) * | 2016-10-19 | 2017-01-04 | 中盐昆山有限公司 | Soda and sociation center novel environment friendly circulation technology system and method |
-
2010
- 2010-01-14 CN CN201020000778XU patent/CN201603511U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103370121A (en) * | 2011-01-06 | 2013-10-23 | 阿尔斯通技术有限公司 | Method and system for removal of gaseous contaminants |
| CN103370121B (en) * | 2011-01-06 | 2015-05-20 | 阿尔斯通技术有限公司 | Method and system for removal of gaseous contaminants |
| CN102635873A (en) * | 2011-02-09 | 2012-08-15 | 熊正毅 | Method for capturing and circulating carbon dioxide in ordinary power plant boiler |
| CN103191633A (en) * | 2013-04-09 | 2013-07-10 | 浙江大学 | Device and method for electrically acquiring and purifying carbon dioxide |
| CN103191633B (en) * | 2013-04-09 | 2014-08-13 | 浙江大学 | Device and method for electrically acquiring and purifying carbon dioxide |
| CN106276982A (en) * | 2016-10-19 | 2017-01-04 | 中盐昆山有限公司 | Soda and sociation center novel environment friendly circulation technology system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101013 |
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| CX01 | Expiry of patent term |