CN103372371A - System device for carbon capture through solar organic Rankine cycle auxiliary coal-fired power generation - Google Patents

System device for carbon capture through solar organic Rankine cycle auxiliary coal-fired power generation Download PDF

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Publication number
CN103372371A
CN103372371A CN2013102775306A CN201310277530A CN103372371A CN 103372371 A CN103372371 A CN 103372371A CN 2013102775306 A CN2013102775306 A CN 2013102775306A CN 201310277530 A CN201310277530 A CN 201310277530A CN 103372371 A CN103372371 A CN 103372371A
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solution
condenser
coal
pump
organic rankine
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CN2013102775306A
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CN103372371B (en
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赵力
谭雨亭
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天津大学
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/133Renewable energy sources, e.g. sunlight
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/151Reduction of greenhouse gas [GHG] emissions, e.g. CO2

Abstract

The invention discloses a system device for carbon capture through solar organic Rankine cycle auxiliary coal-fired power generation. The system device consists of a solar thermal utilization system, an organic Rankine system, a cholamine CO2 absorption system and a coal-fired power generation system, wherein the solar thermal utilization system and the organic Rankine system are connected together through a heat conduction oil side and a working medium side of an evaporator; a high-temperature waste gas pipe of a coal-fired boiler is connected to the lower end of an absorption tower, the cholamine CO2 absorption system and the coal-fired power generation system are connected together; a water side of a condenser is connected to the water side of a reboiler through a pipeline, the cholamine CO2 absorption system and the organic Rankine system are connected together; the system device of carbon capture is formed through the connection, CO2 in waste gases of a coal-fired power station can be captured so as to reduce carbon emission of a coal-fired power plant; solar energy is fully utilized for driving a system power device; condensed heat of the condenser is used for the energy consumption during an analysis process again, so that the organic Rankine cycle efficiency is improved greatly.

Description

The system and device that carbon captures is carried out in the generating of solar energy organic Rankine circulation assistant coal
Technical field
The present invention relates to the auxiliary carbon trapping technique of a kind of solar energy, be specifically related to a kind of solar energy organic Rankine circulation assistant coal generating and carry out the system and device that carbon captures.
Background technology
According to the target of International Energy Agency, should be strict controlled within 2 ℃ in Global Temperature intensification before the year two thousand fifty, the key of realize target is to control the discharge capacity of greenhouse gases.Carbon capture and storage (CCS) technology can reduce the greenhouse gas emissions of built energy facilities 19% very significantly.Existing carbon trapping technique can be divided into after the burning and capture and oxygen-enriched combustion technology before the burning in industrial processes.At present widely used is to capture after the burning, namely in the trapping system device, utilizes the methods such as physical absorption or chemical absorbing that the flue gas that burning generates is carried out carbon dioxide separation and seizure.In the production process of cement, will expend a large amount of heat energy as everyone knows, and monoethanolamine absorption process (MEA) regeneration of waste liquor also needs a large amount of energy consumptions at present.The modes that adopt steam turbine low-pressure to draw gas provide heat energy more at present, have had a strong impact on like this economic benefit in power plant.If utilize solar energy that the carbon capture system is carried out the energy consumption supply, can satisfy the reduction of discharging requirement to the power plant carbon dioxide, also can maximally utilise natural energy resources, improve the economy that carbon captures.
Summary of the invention
The object of the invention is to: in order to realize the operation of stabilizing the economy of coal-burning power plant's collecting carbonic anhydride and power plant, thereby provide the auxiliary carbon dioxide capture system of a kind of solar energy organic Rankine circulation and method.
The system and device that the carbon capture is carried out in the generating of solar energy organic Rankine circulation assistant coal comprises: trough type solar heat-collector, steam generator, oil storage tank, Heat-transfer Oil Pump, steam turbine, generator, organic working medium condenser, working medium pump, absorption tower, the first solution pump, Analytic Tower, solution condenser, compressor, reboiler, the second solution pump, heat exchanger, boiler, steam turbine, condenser and water pump etc.Its technology connectivity scenario is: the conduction oil working medium side of trough type solar heat-collector and evaporimeter and oil storage tank, the Oil Guide pump formation Solar Energy Heat Utilization System that is linked in sequence successively; Organic working medium side, steam turbine, generator, condenser and the working medium pump of evaporimeter is linked in sequence successively and consists of the organic Rankine system; Connect and compose monoethanolamine CO by absorption tower, the first solution pump, Analytic Tower, condenser, compressor, reboiler, the second solution pump and heat exchanger combination 2Absorption system; Be linked in sequence successively by coal-burning boiler steam pipe, steam turbine, condenser and water pump and consist of coal generating system.Solar Energy Heat Utilization System and organic Rankine system couple together by evaporimeter, and the high-temp waste gas pipe of coal-burning boiler is connected to the lower end on absorption tower, and the water side of condenser is connected to the water side of reboiler by pipeline.Outer end, bottom, absorption tower is connected to the first solution pump, and the first solution pump is connected to the import of heat exchanger low temperature side, and the outlet of heat exchanger low temperature side is connected with Analytic Tower.Analytic Tower top is provided with condenser, and absorbent solution consists of self-loopa with Analytic Tower in condenser.The Analytic Tower bottom is provided with reboiler, and reboiler utilizes thermal source that condenser obtains to discharging CO in the Analytic Tower 2After solution carry out again heat, pyrosol side and the second solution pump in the reboiler join, and solution is sent into the absorption tower by the high temperature side of heat exchanger.The steam turbine acting drives the generator generating, in order to first, second solution pump and compressor operation to be provided.
Contain a large amount of CO after utilizing the coal-fired plant boiler burning 2Flue gas send into the absorption tower from the bottom, with the monoethanolamine absorbent solution thermal response that cat head sprays, the CO in the flue gas 2By solution absorption, waste gas is discharged from the absorption tower cat head.Absorb CO 2Solution after the first solution pump pressurization, enter Analytic Tower from the top, the steam that rises with the bottom carries out heat exchange reaction, CO 2From absorbent solution, resolve and enter condenser, CO from the Analytic Tower cat head 2Gas enters compressor and compresses so that transport and store after condensation.Discharge CO 2After solution enter Analytic Tower bottom, after reboiler provides the required steam of Analytic Tower, after the second solution pump and the heat exchange of Analytic Tower import solution, enter the absorption tower and recycle.Trough type solar heat-collector utilizes solar heat heating conduction oil, and high temperature heat conductive oil enters evaporimeter, carries out entering oil tank after the heat exchange with organic working medium, reenters groove type solar vacuum tube absorbing heat through oil pump by circulation line and finishes circulation.Organic working medium is evaporated to high temperature and high pressure steam in evaporimeter, enter the turbine expansion acting, and the working medium exhaust steam after the expansion enters condenser condenses, reenters evaporimeter through working medium pump and finishes the organic Rankine circulation.The aqueous water of organic working medium condenser enters reboiler after being heated to be low-pressure steam in the Rankine cycle system, finishes CO in order to the solution that heats in the reboiler to produce steam 2Parsing, Steam Turbine Driven generator generating is in order to provide the wasted work equipment such as solution pump, carbon-dioxide gas compressor.
The overheated organic working medium steam of low-temp low-pressure after the expansion enters the organic working medium condenser, after cooling, become saturated liquid organic working medium, this moment, the water intensification with working medium heat exchange (Water in Condenser side) became low-pressure superheated steam, enter the reboiler below (monoethanolamine carbon dioxide capture system) Analytic Tower, solution in the reboiler is heated, and the solution vapor of generation enters Analytic Tower and finishes CO 2Resolving.
The beneficial effect of characteristics of the present invention and generation is: (1) monoethanolamine carbon dioxide capture system can be finished CO in the coal fired power plant waste gas 2Capture, to reduce the carbon emission of coal-burning power plant.(2) take full advantage of the solar energy new forms of energy, the consumption (3) that reduces the energy circulates by the organic Rankine take solar energy as thermal source, in order to carbon capture system dynamic device drives, the heat that condenses makes the organic Rankine cycle efficieny reach 100% again in order to the energy consumption of resolving.
Description of drawings
Shown in accompanying drawing be that system principle of the present invention and structure form schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing and by embodiment principle of the present invention and structure are further described.
The system and device that carbon captures is carried out in solar energy organic Rankine circulation assistant coal generating, and it forms structure and is: trough type solar heat-collector 1, evaporimeter 2, oil storage tank 3 and the Oil Guide pump 4 formation Solar Energy Heat Utilization System that is linked in sequence successively; Evaporimeter 2, steam turbine 5, generator 6, organic working medium condenser 7 and working medium pump 8 are linked in sequence successively and consist of the organic Rankine system; Be connected by absorption tower 9, the first solution pump 10, Analytic Tower 11, solution condenser 12, compressor 13, reboiler 14, the second solution pump 15 and heat exchanger 16 and consist of monoethanolamine CO 2Absorption system; Be linked in sequence successively by coal-burning boiler 17 steam pipes, steam turbine 18, condenser 19 and water pump 20 and consist of coal generating system.Solar Energy Heat Utilization System and organic Rankine system couple together by evaporimeter; The high-temp waste gas pipe of coal-burning boiler 17 is connected to the lower end on absorption tower 9; The water side of organic working medium condenser 7 is connected to the water side of reboiler 14 by pipeline.Outer end, bottom, absorption tower is connected to the import that the first solution pump 10, the first solution pumps are connected to heat exchanger 16 low temperature sides, and the outlet of heat exchanger low temperature side is connected with Analytic Tower 11.Analytic Tower top is provided with solution condenser 12, and absorbent solution consists of self-loopa with Analytic Tower in the solution condenser.The Analytic Tower bottom is provided with reboiler 14, and reboiler utilizes thermal source that working medium condenser 7 obtains to discharging CO in the Analytic Tower 2After solution carry out again heat.Pyrosol side in the reboiler and the second solution pump 15 join, and solution is sent into the absorption tower by the high temperature side of heat exchanger, and gas fired-boiler high-temp waste gas pipe is connected to the bottom, absorption tower.Steam turbine 5 actings drive generator 6 generatings, in order to first, second solution pump and CO to be provided 2Compressor operation.
The present invention is comprised of four systems, that is: Solar Energy Heat Utilization System, organic Rankine system, monoethanolamine CO 2Absorption system and coal generating system.By conduction oil side and the working medium side of evaporimeter, Solar Energy Heat Utilization System and organic Rankine system are coupled together.Be connected to the lower end on absorption tower by the high-temp waste gas pipe of coal-burning boiler, with monoethanolamine CO 2Absorption system and coal generating system couple together.Water side by condenser is connected to the water side of reboiler by pipeline, with monoethanolamine CO 2Absorption system and organic Rankine system couple together.By the above-mentioned system and device that connects and composes the carbon capture.
The working medium of organic Rankine circulation is selected has high condensation temperature, guarantees that condensation temperature remains on more than 120 ℃, produces low-pressure steam in order to reboiler and finishes carbon dioxide resolving in the Analytic Tower.In the Rankine cycle, the used organic working medium of present embodiment is toluene.
CO 2The wasted work device drives of trapping system is provided by the organic rankine cycle turbine outputting power.
CO 2The parsing heat of trapping system is provided by organic Rankine cycle condenser quantity of heat given up.
CO 2The required energy consumption of trapping system provides by circulating take solar energy as the thermal source organic Rankine, i.e. CO 2Capturing process analysis tower institute calorific requirement is that the organic Rankine circulation (condensation heat of condenser) of thermal source provides by solar energy, can avoid or reduce coal-burning power plant's steam turbine low-pressure and draw gas heat is provided, and guarantees the stable operation of coal-burning power plant, improves power benefit.

Claims (2)

1. the system and device that carbon captures is carried out in the generating of solar energy organic Rankine circulation assistant coal, have: trough type solar heat-collector, evaporimeter, oil storage tank, Heat-transfer Oil Pump, steam turbine, generator, the organic working medium condenser, working medium pump, the absorption tower, the first solution pump, Analytic Tower, the solution condenser, compressor, reboiler, the second solution pump, heat exchanger, boiler, steam turbine, condenser and water pump is characterized in that: trough type solar heat-collector (1), evaporimeter (2), oil storage tank (3) and Oil Guide pump (4) the formation Solar Energy Heat Utilization System that is linked in sequence successively; Evaporimeter (2), steam turbine (5), generator (6), organic working medium condenser (7) and working medium pump (8) are linked in sequence successively and consist of the organic Rankine system; Be connected by absorption tower (9), the first solution pump (10), Analytic Tower (11), solution condenser (12), compressor (13), reboiler (14), the second solution pump (15) and heat exchanger (16) and consist of monoethanolamine CO 2Absorption system; By coal-burning boiler (17) steam pipe, steam turbine (18), condenser (19) and water pump (20) the formation coal generating system that is linked in sequence successively, Solar Energy Heat Utilization System and organic Rankine system couple together by evaporimeter, the high-temp waste gas pipe of coal-burning boiler (17) is connected to the lower end of absorption tower (9), the water side of organic working medium condenser (7) is connected to the water side of reboiler (14) by pipeline, outer end, bottom, absorption tower is connected to the first solution pump (10), the first solution pump is connected to the import of heat exchanger (16) low temperature side, the outlet of heat exchanger low temperature side is connected with Analytic Tower (11), Analytic Tower top is provided with solution condenser (12), absorbent solution consists of self-loopa with Analytic Tower in the solution condenser, the Analytic Tower bottom is provided with reboiler (14), and reboiler utilizes thermal source that organic working medium condenser (7) obtains to discharging CO in the Analytic Tower 2After solution carry out again heat, pyrosol side in the reboiler and the second solution pump (15) join, solution is sent into the absorption tower by the high temperature side of heat exchanger, gas fired-boiler high-temp waste gas pipe is connected to the bottom, absorption tower, steam turbine (5) acting drives generator (6) generating, in order to first, second solution pump and CO to be provided 2Compressor operation.
2. carry out the system and device that carbon captures according to solar energy organic Rankine circulation assistant coal generating claimed in claim 1, it is characterized in that the organic working medium described in the organic Rankine circulation is toluene.
CN201310277530.6A 2013-07-04 2013-07-04 System device for carbon capture through solar organic Rankine cycle auxiliary coal-fired power generation CN103372371B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103752142A (en) * 2014-01-26 2014-04-30 天津大学 Solar aided carbon dioxide trapping integrated system
CN103990372A (en) * 2014-04-28 2014-08-20 天津大学 System using solar energy for seawater desalination to assist coal-fired power generation for carbon capture by ammonia method
CN104154521A (en) * 2014-08-12 2014-11-19 天津大学 Auxiliary solar energy carbon-dioxide-capturing and heating integrated system and method thereof
CN104353346A (en) * 2014-11-25 2015-02-18 青海同鑫化工有限公司 Ammonia-process flue gas desulfurization and organic Rankine cycle coupled power generation method
CN104613654A (en) * 2015-01-13 2015-05-13 宁波瑞信能源科技有限公司 Combined-type-solar-system power-plant water-feeding and CO2-collecting assisted integrated system
CN105169944A (en) * 2015-08-26 2015-12-23 中石化节能环保工程科技有限公司 Solar heating system
CN106076073A (en) * 2016-07-28 2016-11-09 天津大学 A kind of solar energy and the energy utility system of geothermal energy united power plant low-carbon emission
CN106837439A (en) * 2017-01-25 2017-06-13 天津大学 The vacuum pressure and temperature varying Coupling Adsorption carbon trapping system of solar energy organic Rankine bottoming cycle auxiliary

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CN101509472A (en) * 2008-07-23 2009-08-19 昆明理工大学 Disperse type low-temperature solar thermal power generation system and power generation technique
CN101516473A (en) * 2006-07-17 2009-08-26 联邦科学及工业研究组织 CO2 capture using solar thermal energy

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
CN101516473A (en) * 2006-07-17 2009-08-26 联邦科学及工业研究组织 CO2 capture using solar thermal energy
CN101509472A (en) * 2008-07-23 2009-08-19 昆明理工大学 Disperse type low-temperature solar thermal power generation system and power generation technique

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103752142A (en) * 2014-01-26 2014-04-30 天津大学 Solar aided carbon dioxide trapping integrated system
CN103752142B (en) * 2014-01-26 2015-12-02 天津大学 A kind of solar energy auxiliary carbon dioxide trapping integrated system
CN103990372A (en) * 2014-04-28 2014-08-20 天津大学 System using solar energy for seawater desalination to assist coal-fired power generation for carbon capture by ammonia method
CN104154521A (en) * 2014-08-12 2014-11-19 天津大学 Auxiliary solar energy carbon-dioxide-capturing and heating integrated system and method thereof
CN104154521B (en) * 2014-08-12 2015-12-09 天津大学 The integrated system of a kind of solar energy auxiliary carbon dioxide trapping and heat supply and method thereof
CN104353346A (en) * 2014-11-25 2015-02-18 青海同鑫化工有限公司 Ammonia-process flue gas desulfurization and organic Rankine cycle coupled power generation method
CN104353346B (en) * 2014-11-25 2016-03-30 青海同鑫化工有限公司 A kind of ammonia type flue gas desulfurizing and organic Rankine bottoming cycle coupled electricity-generation method
CN104613654A (en) * 2015-01-13 2015-05-13 宁波瑞信能源科技有限公司 Combined-type-solar-system power-plant water-feeding and CO2-collecting assisted integrated system
CN105169944A (en) * 2015-08-26 2015-12-23 中石化节能环保工程科技有限公司 Solar heating system
CN106076073A (en) * 2016-07-28 2016-11-09 天津大学 A kind of solar energy and the energy utility system of geothermal energy united power plant low-carbon emission
CN106076073B (en) * 2016-07-28 2019-01-11 天津大学 A kind of energy utility system of solar energy and geothermal energy united power plant low-carbon emission
CN106837439A (en) * 2017-01-25 2017-06-13 天津大学 The vacuum pressure and temperature varying Coupling Adsorption carbon trapping system of solar energy organic Rankine bottoming cycle auxiliary

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