WO2010097047A1 - 二氧化碳压缩装置及方法、二氧化碳分离回收系统及方法 - Google Patents
二氧化碳压缩装置及方法、二氧化碳分离回收系统及方法 Download PDFInfo
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- WO2010097047A1 WO2010097047A1 PCT/CN2010/070755 CN2010070755W WO2010097047A1 WO 2010097047 A1 WO2010097047 A1 WO 2010097047A1 CN 2010070755 W CN2010070755 W CN 2010070755W WO 2010097047 A1 WO2010097047 A1 WO 2010097047A1
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- carbon dioxide
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- 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
- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
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- 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
- B01D53/1425—Regeneration of liquid absorbents
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/50—Carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/65—Employing advanced heat integration, e.g. Pinch technology
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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
- 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
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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
Definitions
- the invention relates to a carbon dioxide separation and recovery technology in the fields of chemical engineering and environmental engineering, in particular to a carbon dioxide compression device and method, and a separation and recovery system and method for effectively removing carbon dioxide from flue gas. Background technique
- C0 2 The massive emissions of greenhouse gases such as C0 2 are an important cause of global climate change. Therefore, the issue of C0 2 emissions has caused great concern in the international community.
- C0 2 emissions from fossil fuel combustion one is to improve energy efficiency, and the other is to separate co 2 from combustion flue gas and use, store or store it.
- the ammonia flue is used to spray the flue gas of the boiler of the thermal power station to absorb C0 2 , which can not only achieve the purpose of reducing CO 2 , but also obtain high quality fertilizer.
- ammonium bicarbonate decomposes into ammonia, water and co 2 at an ambient temperature higher than 60 ° C, causing C0 2 to return to the atmosphere, the application of this CO 2 emission reduction method needs further study.
- the removal technology of C0 2 is also a CaO carbonation-calcination cycle C0 2 separation (CCR) technique, a polymer membrane removal C0 2 , a 0 2 /C0 2 cycle combustion technique, and a chemical chain combustion (CLC) technique.
- CCR CaO carbonation-calcination cycle C0 2 separation
- CLC chemical chain combustion
- C0 2 In the removal technique of C0 2 , a very important method is to remove C0 2 by solution absorption. According to the different properties of the absorbent, it can be divided into two categories. One type is a physical absorption method such as a water washing method, a low temperature methanol washing method (Rectisol), a polyethylene glycol dimethyl ether method (Selexol), and a propylene carbonate method. The other type is chemical absorption methods, such as hot potash method, low heat consumption Benfir method, activated MDEA method, MEA method, and the like. The above C0 2 removal technology is very mature, and industrialization has already been realized in the chemical industry.
- a physical absorption method such as a water washing method, a low temperature methanol washing method (Rectisol), a polyethylene glycol dimethyl ether method (Selexol), and a propylene carbonate method.
- the other type is chemical absorption methods, such as hot potash method, low heat consumption Benfir method, activate
- the energy consumption for separating and recovering carbon dioxide from combustion flue gas by the conventional chemical absorption method is as high as 750 to 900 kcal/kg-C0 2 , so the operation cost of separation and recovery is very high.
- the liquefaction of gaseous carbon dioxide is usually a process of condensing after secondary or tertiary compression. Since the compression of carbon dioxide in the process is carried out by a compressor, the power consumption is very large. Summary of the invention
- An object of the present invention is to provide a carbon dioxide compression apparatus and method which solves the technical problem of utilizing waste heat to compress carbon dioxide gas, thereby effectively utilizing waste heat and improving energy utilization efficiency.
- Another object of the present invention is to provide a low-energy carbon dioxide separation and recovery system and a separation and recovery method.
- the technical problem to be solved is that it can remove carbon dioxide from the flue gas and reduce the amount of carbon dioxide emitted into the atmosphere. Compressing the separated carbon dioxide gas to obtain high-pressure carbon dioxide is beneficial to the storage and transportation of carbon dioxide, thereby contributing to environmental protection.
- a carbon dioxide compression device comprises: an absorption reactor, a regeneration reactor, a booster pump and a throttle valve, wherein the absorption reactor is filled with a carbon dioxide absorbing solution for absorbing carbon dioxide gas; a regeneration reactor for decomposing the carbon dioxide absorption solution from the absorption reactor out of the carbon dioxide gas; the booster pump is for pressurizing and transporting the carbon dioxide absorption solution in the absorption reactor to the regeneration reactor; a pressure difference between the absorption reactor and the regeneration reactor on the pipeline flowing from the regeneration reactor to the absorption reactor; and a heat exchanger for outputting the absorption heat of the absorption reaction in the absorption reactor; A heat exchanger is provided in the regeneration reactor for providing regenerative heat of the regeneration reaction.
- the present invention also proposes a carbon dioxide compression system comprising a plurality of stages of the above-described carbon dioxide compression apparatus, wherein the absorption reactor of the latter stage compression unit is connected to the regeneration reactor of the previous stage compression unit.
- the system further includes a condenser coupled to the regeneration reactor of the last stage carbon dioxide compression unit for condensing the carbon dioxide gas from the regeneration reactor.
- the invention also proposes a carbon dioxide compression system comprising a compression subsystem and a heat pump subsystem: the compression subsystem comprises one or more stages of series compression devices, each stage of compression device
- the invention comprises: an absorption reactor for absorbing carbon dioxide gas; a regeneration reactor for decomposing the absorption solution from the absorption reactor out of the carbon dioxide gas; in the compression subsystem, the carbon dioxide absorption reactor of the latter stage compression device is connected to the front a regeneration reactor of the primary compression device; a regeneration reactor of the final primary compression device is coupled to a condenser;
- the heat pump subsystem includes: a heat pump generator filled with a first heat pump absorption solution, the heat pump generator a heat exchanger for receiving heat absorption from the absorption reactor; a heat pump absorber filled with a second heat pump absorption solution, and an absorption heat exchanger disposed in the heat pump absorber for regeneration to the above a reactor heating; a steam passage connecting the heat pump generator and the heat pump absorber; the first heat pump absorption solution and the second heat pump ab
- the second heat pump absorbs the absorbent concentration of the solution.
- the concentration of the absorbent is higher than that of the first heat pump absorption solution;
- the working medium is one of water, ammonia, methanol and ethanol or a mixture of several substances;
- the absorbent is LiBr, NaBr, KBr, Li 4 Br , MgBr 2 , CaBr 2 , Lil, Nal, KI, NHJ, Mgl 2 , Cal 2 , LiCl, NaCl, KC1, NH 4 C1, MgCl 2 , CaCl 2 , LiN0 3 , NaN0 3 , KN0 3 , NH4N0 3 , Mg (N0 3 ) ⁇ P Ca (N0 3 ) 2 one or a mixture of several substances;
- the heat exchanger is connected to a heat exchanger in the absorption reactor of the above-mentioned stages, and the absorption heat exchanger
- the carbon dioxide compression system according to the embodiment of the present invention further comprises an absorbent crystallizer, which receives the heat pump absorption solution from the heat pump absorber and/or the heat pump generator and cools to form an absorption crystallization and a crystallization heat pump absorption solution.
- the post-crystallization heat pump absorption solution is sent to the heat pump generator as a first heat pump absorption solution, and the absorption solution containing the absorbent crystals is sent to the heat pump absorber as a second heat pump absorption solution.
- the carbon dioxide compression system according to the embodiment of the present invention further comprises a heat pump absorption solution from the heat exchanger, the heat pump absorption solution from the heat pump generator and/or the heat pump absorption solution from the heat pump absorber, and crystallization.
- the post-absorption solution and/or the absorbent crystals or the absorption solution containing the absorbent crystals are subjected to heat exchange.
- the heat pump generator is further provided with a generating heater for heating the first heat pump absorbing solution in the heat pump generator.
- the invention also proposes a carbon dioxide separation and recovery system, comprising a separation subsystem and a compressor System and heat pump subsystem:
- the separation subsystem includes: an absorption tower for absorbing carbon dioxide from a carbon dioxide-containing gas; a regeneration tower for regenerating a carbon dioxide absorbing solution; and the compression subsystem including one or more stages of series compression Apparatus, each stage of compression apparatus comprising: an absorption reactor for absorbing carbon dioxide gas from the separation subsystem; a regeneration reactor for decomposing the absorption solution from the absorption reactor out of carbon dioxide gas; in the compression subsystem, the latter
- the carbon dioxide absorption reactor of the stage compression device is connected to the regeneration reactor of the previous stage compression device; the carbon dioxide absorption reactor of the first stage compression device is connected to the separation subsystem for receiving carbon dioxide gas; and the regeneration reaction of the final stage compression device
- the heat pump subsystem includes: a heat pump generator filled with a first heat pump absorption solution, and a first heat exchanger and a second heat exchanger are disposed in the heat pump generator
- potassium hydroxide monoethanolamine, diethanolamine, methyldiethanolamine, aminoacetic acid, propylene carbonate, polyethylene glycol dimethyl ether, or two or two of them are used in the absorption reactor.
- the above mixture is used to absorb carbon dioxide.
- the present invention also provides a carbon dioxide compression method comprising the steps of: reacting carbon dioxide gas with a carbon dioxide absorbing solution to form a carbonic acid compound in an absorption reactor; pressurizing and delivering the above carbonic acid compound to a regeneration reactor; In the middle, the carbonic acid compound from the absorption reactor is thermally decomposed to generate a carbon dioxide gas and a carbon dioxide absorption solution; and the carbon dioxide absorption solution generated in the regeneration reactor is depressurized and sent to the absorption reactor.
- the object of the present invention and solving the technical problems thereof can also be achieved by the following technical solutions.
- the invention also provides a carbon dioxide compression method comprising a multi-stage series compression process, each stage of the compression process comprising: in the absorption reactor, the carbon dioxide gas is absorbed by the carbon dioxide absorption solution; The carbon dioxide absorbing solution after absorbing the carbon dioxide is pressurized and sent to the regeneration reactor; in the regeneration reactor, the carbon dioxide absorbing solution from the absorption reactor is heated to generate a carbon dioxide gas and a carbon dioxide absorbing solution; and the regeneration reactor is generated The carbon dioxide absorbing solution is decompressed and sent to the absorption reactor; in addition to the first compression process, during the other compression process, the carbon dioxide gas entering the absorption reactor is the carbon dioxide gas generated by the regeneration reactor of the previous stage compression process. .
- it also includes condensing carbon dioxide gas generated in the regeneration reactor in the final stage of the compression process to form a carbon dioxide liquid.
- the present invention also provides a carbon dioxide compression method comprising the steps of: in the absorption reactor, the carbon dioxide gas is absorbed by the carbon dioxide absorption solution; the carbon dioxide absorption solution after the absorption of the carbon dioxide gas is sent to the regeneration reactor; Wherein, the carbon dioxide absorbing solution from the absorption reactor is heated to generate a carbon dioxide gas and a regenerated carbon dioxide absorbing solution; and the regenerated carbon dioxide absorbing solution generated in the regeneration reactor is sent to the absorption reactor.
- the invention also provides a carbon dioxide compression method comprising a multi-stage series compression process, each stage compression process comprising: in the absorption reactor, the carbon dioxide gas is absorbed by the carbon dioxide absorption solution; and the carbon dioxide absorption solution after the absorption of the carbon dioxide is pressurized Conveyed into the regeneration reactor; in the regeneration reactor, the carbon dioxide absorption solution from the absorption reactor is heated to generate carbon dioxide gas and regenerated carbon dioxide absorption solution; and the regenerated carbon dioxide absorption solution generated in the regeneration reactor is decompressed and delivered to In the absorption reactor; in addition to the first stage compression process, in other compression processes, the carbon dioxide gas entering the absorption reactor is the carbon dioxide gas produced by the regeneration reactor of the previous stage compression process.
- the aforementioned carbon dioxide compression method condenses carbon dioxide gas generated in the regeneration reactor of the final stage compression process to form a carbon dioxide liquid.
- the carbon dioxide compression method described above further includes: a heat pump cycle process, wherein the heat pump cycle process comprises: in the absorption reactor, the absorption heat released by the carbon dioxide gas absorbed by the carbon dioxide absorption solution is used for heating The first heat pump absorbs the solution to generate working fluid vapor; and the working fluid vapor is sent to the heat pump absorber and absorbed by the second heat pump absorption solution in the heat pump absorber to release the absorbed heat, which is absorbed by the heat pump. It is sent to the regeneration reactor for heating the carbon dioxide absorbing solution in the regeneration reactor.
- the heat pump cycle process comprises: in the absorption reactor, the absorption heat released by the carbon dioxide gas absorbed by the carbon dioxide absorption solution is used for heating The first heat pump absorbs the solution to generate working fluid vapor; and the working fluid vapor is sent to the heat pump absorber and absorbed by the second heat pump absorption solution in the heat pump absorber to release the absorbed heat, which is absorbed by the heat pump. It is sent to the regeneration reactor for heating the carbon dioxide absorbing solution in the
- the invention also provides a carbon dioxide separation and recovery method for separating and recovering carbon dioxide from a carbon dioxide-containing feed gas gas, the method comprising a carbon dioxide separation process and carbon dioxide compression
- the carbon dioxide separation process comprises: contacting the raw material gas with the carbon dioxide absorption solution in the absorption tower, so that the carbon dioxide absorption solution absorbs the carbon dioxide in the raw material gas; and the carbon dioxide absorption solution after the absorption of the carbon dioxide is output to the regeneration tower and heated to be heated.
- the carbon dioxide absorbing liquid absorbing carbon dioxide is decomposed to form two phases of a carbon dioxide gas and an absorbing solution; and the carbon dioxide compression process is the carbon dioxide compression method described above, and the carbon dioxide gas formed in the regeneration tower is compressed.
- the carbon dioxide gas and the absorption solution formed in the regeneration tower are separately sent to the heat pump generator for heating the heat pump absorption solution in the heat pump generator.
- the heat pump generator for heating the heat pump absorption solution in the heat pump generator.
- a portion of the heat of absorption generated in the heat pump absorber is delivered to the regeneration column for heating the carbon dioxide absorbing solution in the regeneration column.
- a part of the heat pump absorption solution in the heat pump generator and/or a part of the heat pump absorption solution in the heat pump absorber is cooled to form an absorption crystallization and a crystallization heat pump absorption solution; the absorbent is crystallized or contains an absorbent
- the crystallized absorption solution is delivered to the heat pump absorber as a second heat pump absorption solution, and the post-crystallization heat pump absorption solution is delivered to the heat pump generator as the first heat pump absorption solution.
- the degree of conversion of the absorbent of the carbon dioxide absorbing solution in the subsequent stage of the absorption reactor is greater than 0.1% of the degree of conversion of the absorbent of the carbon dioxide absorbing solution in the previous stage of the absorption reactor.
- the degree of conversion of the absorbent refers to the ratio of the molar concentration of the absorbent in the absorption solution combined with the carbon dioxide to the total molar concentration of the absorbent, and the regeneration reaction is generated under the conditions that the regeneration temperature is constant and the type of the absorbent and the total molar concentration are the same.
- the equilibrium pressure of the carbon dioxide gas increases as the degree of conversion of the absorbent increases.
- the carbon dioxide gas compression of the present invention is achieved by lowering the temperature of the absorption reaction while increasing the temperature of the regeneration reaction, and thereby increasing the degree of conversion of the absorbent of the absorption solution in the regeneration reactor step by step.
- the present invention has significant advantages and advantageous effects over the prior art.
- the absorption reaction of carbon dioxide is a strong exothermic reaction
- the regeneration reaction of the carbon dioxide absorption solution is a reverse reaction of the carbon dioxide absorption reaction, which is a strong endothermic reaction.
- the existing carbon dioxide chemical absorption technology in order to improve the CO 2 absorption capacity of the absorption liquid, the external cooling water is usually used to cool the carbon dioxide absorption solution entering the absorption tower to ensure that the absorption tower works at a lower temperature.
- the external heat source is usually used as the regenerative heat to heat the absorption liquid in the regeneration tower to ensure that the regeneration tower operates at a temperature higher than the working temperature of the absorption tower.
- the existing carbon dioxide chemical absorption technology needs to discharge a large amount of water to the environment through external cooling water.
- Low-grade heat on the other hand, requires a large amount of externally driven heat source at a higher grade, and is therefore a process that consumes both energy and water.
- the carbon dioxide separation and recovery system proposed by the present invention actually combines the carbon dioxide chemical absorption technology and the absorption heat pump circulation technology organically, and the carbon dioxide absorption process is released at a lower grade by the action of the absorption heat pump cycle.
- the absorption heat is increased to a higher grade regenerative heat that can be used for the regeneration of the carbon dioxide absorption solution, thereby achieving a substantial reduction or no external cooling water and externally driven heat source.
- the present invention employs an absorption compression process to compress the separated carbon dioxide, and the compression process can be carried out by using waste heat, thereby greatly eliminating power or other driving force. Therefore, the carbon dioxide separation and recovery system proposed by the present invention has the advantages of low energy consumption and low operating cost compared with the existing carbon dioxide separation and recovery system.
- FIG. 1 is a schematic view showing a carbonization apparatus according to a first embodiment of the present invention.
- Fig. 2 is a schematic view showing a carbonization compression system according to a second embodiment of the present invention.
- Figure 3 is a schematic illustration of a two-carbon carbon compression system in accordance with a third embodiment of the present invention.
- Figure 4 is a schematic illustration of a carbonization compression system in accordance with a fourth embodiment of the present invention.
- Figure 5 is a schematic view of a carbon separation and recovery system according to Embodiment 5 of the present invention.
- FIG. 6 is a schematic view of a secondary carbon separation and recovery system according to Embodiment 6 of the present invention.
- a carbon dioxide compression apparatus which comprises an absorption reactor 101, a regeneration reactor 102, a booster pump 103 and a throttle valve 104.
- the absorption reactor 101 and the regeneration reactor 102 are pressure-resistant containers each containing a carbon dioxide absorbing solution.
- a heat exchanger 105 is provided in the absorption reactor 101 for generating the absorption reactor.
- Heat output, a heat exchanger 106 is provided within the regeneration reactor 102 for providing heat to the regeneration reactor.
- the absorption reactor 101 and the regeneration reactor 102 are connected by a pipe to circulate the carbon dioxide absorbing solution between the absorption reactor 101 and the regeneration reactor 102.
- the booster pump 103 is used to pressurize and deliver the carbon dioxide absorbing solution in the absorption reactor 101 to the regeneration reactor 103, and the throttle valve 104 is disposed on the pipeline from the regeneration reactor to the absorption reactor for The pressure difference between the absorption reactor and the regeneration reactor is controlled.
- the solute of the carbon dioxide absorbing solution in the absorption reactor and the regeneration reactor is: potassium carbonate, monoethanolamine, diethanolamine, methyldiethanolamine, glycine, propylene carbonate, polyethylene glycol dimethyl ether, or two of them or A mixture of two or more.
- the function of the carbon dioxide absorbing solution is that the carbon dioxide gas and the carbon dioxide absorbing solution are adsorbed, dissolved or combined at a lower temperature and pressure in the absorption reactor, so that the carbon dioxide gas is absorbed; the carbon dioxide absorbing solution after absorbing carbon dioxide is regenerated
- a reverse process opposite to that in the absorption reactor occurs, such as desorption, precipitation, or decomposition, thereby generating a carbon dioxide gas and a carbon dioxide absorbing solution, and the carbon dioxide gas obtained at a high temperature has a higher pressure.
- the compression of carbon dioxide gas is achieved.
- FIG. 2 it is a carbon dioxide compression system according to Embodiment 2 of the present invention.
- the system includes a plurality of carbon dioxide compression devices as described in Embodiment 1, and the compression device 100, the compression device 200, and the compression device 300 are sequentially connected in series.
- the booster pumps 103, 203, 303 are used to pressurize and deliver the carbon dioxide absorbing solution of the absorption reactor to the regeneration reactor, and the throttle valves 104, 204, 304 are used to control the pressure difference.
- the absorption reactor of the latter compression device is connected to the regeneration reactor of the previous compression device, such as the absorption reactor 201 is connected to the regeneration reactor 102, receives the carbon dioxide gas from the regeneration reactor 102; and the absorption reactor 301 is connected to the regeneration.
- Reactor 202 is configured to receive carbon dioxide gas from regeneration reactor 202.
- High pressure carbon dioxide gas can be obtained in the regeneration reactor 302 by multistage compression of the compression device 100, the compression device 200, and the compression device 300.
- each stage of the absorption reactor operates at the same lower temperature, and the stages of the regeneration reactor operate at the same temperature above the operating temperature of the absorption reactor.
- FIG. 3 it is a carbon dioxide compression system according to Embodiment 3 of the present invention.
- a condenser 400 is added to the regeneration reactor 302 of the compression device 300 for receiving the regeneration reactor 302. Carbon dioxide gas.
- the incoming carbon dioxide gas is cooled in the condenser 400 to condense the carbon dioxide gas to form a carbon dioxide liquid.
- the system includes a heat pump subsystem and the carbon dioxide compression device described in the foregoing embodiment 1.
- the heat pump subsystem includes: a heat pump generator 21 filled with a first heat pump absorbing solution, and a heat generating device 32 is disposed in the heat pump generator 21 for receiving heat of absorption from the absorbing reactor 101 a heat pump absorber 22 filled with a second heat pump absorbing solution, in which a heat absorbing heat exchanger 26 is provided for supplying heat to the above-described regeneration reactor 102; a steam passage 23 communicating with said a heat pump generator 21 and the heat pump absorber 22; the first heat pump absorbing solution in the heat pump generator 21 has an absorbent concentration lower than that of the second heat pump absorbing solution described in the heat pump absorber 22.
- the concentration heat exchanger 32 is connected to the heat exchanger 105 in the absorption reactor 101, and the absorption heat exchanger 26 is connected to the heat exchanger 106 in the regeneration reactor 102.
- the heat of absorption generated in the absorption reactor 101 due to the absorption of carbon dioxide by the carbon dioxide absorbing solution can be supplied to the heat pump generator 21 for heating the first heat pump absorbing solution in the heat pump generator 21 to generate working fluid vapor.
- the working fluid vapor enters the heat pump absorber through the steam passage 23, and the second heat pump absorption solution in the heat pump absorber 22 absorbs the working fluid vapor to generate heat of absorption, which is sent to the regeneration reactor 102.
- the carbon dioxide absorbing solution is heated to decompose the carbon dioxide gas, and the carbon dioxide absorbing solution is regenerated.
- the first heat pump absorption solution and the second heat pump absorption solution are composed of a working medium and an absorbent.
- the concentration of the first heat pump absorption solution may be infinitesimal, that is, the first heat pump absorption solution may be composed only of the working medium.
- the first heat pump absorption solution and the second heat pump absorption solution may use the same absorbent or different absorbents. When the first heat pump absorption solution and the second heat pump absorption solution use the same absorbent, the second heat pump absorption solution has a higher concentration of the absorbent than the first heat pump absorption solution.
- the working fluid is one of water, ammonia, methanol and ethanol or a mixture of several substances;
- the absorbent is LiBr, NaBr, KBr, NH 4 Br, MgBr 2 , CaBr 2 , Lil, Nal, KI , NH 4 I, Mgl 2 , Cal 2 , LiCl, NaCl, KC1, NH 4 C1, MgCl 2 , CaCl 2 , LiN0 3 , NaN0 3 , jump, NH 4 N0 3 , Mg (N0 3 ) 2 and Ca (N0 3 ) 2 one or a mixture of several substances.
- the carbon dioxide compression system of the present embodiment can effectively utilize the absorption heat generated by each absorption process, thereby saving heat consumption and improving energy utilization efficiency.
- the heat pump subsystem of the present embodiment can also be applied to the carbon dioxide compression system of Embodiment 2 or Embodiment 3, and the generating heat exchanger is connected to the respective stages of absorption by the same connection method as in Embodiment 4.
- a heat exchanger in the reactor, the absorption heat exchanger being connected to a heat exchanger in the regeneration reactor of the stages.
- the carbon dioxide separation and recovery system mainly comprises: a separation subsystem, a heat pump subsystem and a compression subsystem, wherein the separation subsystem is used for separating carbon dioxide gas from a carbon dioxide-containing feed gas such as combustion flue gas, and the compression subsystem is used for The carbon dioxide gas obtained by the separation subsystem is compressed to obtain high pressure carbon dioxide gas or carbon dioxide liquid, and the heat pump subsystem is used to supply heat to the separation subsystem and the compression subsystem.
- the separation subsystem includes: an absorption tower 10 and a regeneration tower 40.
- the absorption tower 10 is for absorbing carbon dioxide in a raw material gas containing carbon dioxide gas.
- the absorption tower 10 includes: a bottom 11 for accommodating a carbon dioxide absorbing solution; a packing layer 12 disposed at a central portion within the absorbing tower 10, the function of which is to make the carbon dioxide absorbing solution and the gas entering the tower larger a contact interface; a gas supply port 16 disposed under the filler layer 12 for supplying a carbon dioxide-containing material gas into the absorption tower; and an exhaust port 15 disposed at the top of the absorption tower 10 for discharging carbon dioxide after separation
- the gas spraying device 13 is disposed above the above-mentioned packing layer 12 for uniformly spraying the carbon dioxide absorbing solution.
- the carbon dioxide absorbing solution is dripped from the top in the absorption tower, the gas flows from the bottom to the top, and the carbon dioxide absorbing solution contacts the carbon dioxide-containing gas (such as flue gas) entering the absorption tower, and absorbs therein.
- Carbon dioxide and acid gas components such as S0x and NOx.
- the absorption agent of the carbon dioxide absorbing solution of the separation subsystem may be potassium carbonate, monoethanolamine, diethanolamine, methyldiethanolamine, aminoacetic acid, propylene carbonate, polyethylene glycol dimethyl ether, or two or two of them. The above mixture.
- the heat pump subsystem includes: a heat pump generator 21 and a heat pump absorber 22.
- the heat pump generator 21 is provided with a first heat exchanger 31 and a second heat exchanger 25, and the heat pump generator 21 is filled with a low concentration of a first heat pump absorption solution, and the first heat pump absorbs The solution consists of a working fluid and an absorbent.
- the heat pump generator functions to heat the low-concentration first heat pump absorbing solution in the heat pump generator to generate working fluid vapor.
- the heat pump generator 21 is further provided with a generating heater 32 for heating the first heat pump absorbing solution in the heat pump generator to compensate for insufficient heat due to heat loss of the system and loss of crystallizer cooling.
- the heat pump absorber 22 is filled with a second heat pump absorbing solution whose working fluid and absorbent species are the same as or different from the first absorbing solution in the heat pump generator 21, preferably, the absorbent concentration is high.
- the concentration of the absorbent in the first absorption solution in the heat pump generator 21; preferably, the second heat pump absorption solution in the heat pump absorber 22 is a saturated solution (or a supersaturated solution, or a mixture of absorbent crystals).
- the mass steam passage 23 is for causing the working fluid vapor generated in the heat pump generator 21 to enter the heat pump absorber 22.
- An absorption heat exchanger 26 is provided in the heat pump absorber 22, and a reboiler 46 connected to the regeneration tower 40 is used to deliver heat generated in the heat pump absorber 22 to the reboiler 46.
- the regeneration tower 40 is connected to a reboiler 46, and an upper portion thereof is provided with a shower device 43, and a carbon dioxide absorbing solution outlet connected to the bottom of the absorption tower 10.
- a filling layer 42 is provided in the middle of the regeneration tower 40 for sufficiently regenerating the carbon dioxide absorbing solution.
- the bottom of the regeneration tower is a bottom 41 for accommodating the carbon dioxide absorbing solution, and the top of the regeneration tower 40 is provided with an exhaust port 45.
- the carbon dioxide absorbing solution at the bottom of the absorption tower 10 is sent to the regeneration tower through a pipe to regenerate the absorbing liquid to form two phases of gas and liquid.
- the main component of the gas is carbon dioxide and water vapor
- the main component of the liquid is a carbon dioxide absorbing solution, but the concentration of carbon dioxide contained in the liquid is greatly reduced due to regeneration.
- the inlet of the first heat exchanger 31 is connected to the absorption liquid outlet at the bottom of the regeneration tower 40, and the outlet of the first heat exchanger 31 is connected to the shower device 13 of the absorption tower 10, so that the first occurrence occurs.
- the carbon dioxide absorbing solution in the heat exchanger 31 after being subjected to heat exchange cooling is again introduced into the absorption tower.
- the inlet of the second generation heat exchanger 25 is connected to the top exhaust port 45 of the regeneration tower 40 described above.
- a gas-liquid separator 30 is connected to the outlet of the second generation heat exchanger 25 to obtain a carbon dioxide gas of higher purity.
- the compression subsystem is configured to compress a high concentration of carbon dioxide gas obtained by the separation subsystem.
- the compression subsystem comprises a plurality of stages of compression devices.
- the number of compression devices can be set according to specific operating conditions. Generally, the greater the number of compression devices connected in series, the higher pressure carbon dioxide will be obtained.
- the compression is three levels.
- the device is connected in series as an example for explanation.
- the present embodiment includes three-stage compression devices 100, 200, and 300.
- the three-stage compression device has the same structure.
- the compression device 100 will be described as an example.
- the compression device 100 includes an absorption reactor 101, a regeneration reactor 102, a booster pump 103, and a throttle valve 104.
- the absorption reactor 101 is connected to the separation subsystem to receive carbon dioxide gas.
- the absorption reactor 101 is provided with a carbon dioxide absorbing solution, and the carbon dioxide gas entering the carbon dioxide gas is absorbed by the carbon dioxide absorbing solution.
- the regeneration reactor 102 is configured to heat the carbon dioxide absorbing solution from the absorption reactor 101 to decompose the carbon dioxide gas, thereby regenerating the carbon dioxide absorbing solution.
- the booster pump 103 is used to pressurize and deliver the carbon dioxide absorbing solution in the absorption reactor 101 to the regeneration reactor 103.
- the internal pressure of the regeneration reactor is higher than the internal pressure of the absorption reactor.
- a throttle valve 104 is disposed on the line from the regeneration reactor to the absorption reactor for controlling the pressure difference between the absorption reactor 101 and the regeneration reactor 103.
- a heat exchanger is also provided in the absorption reactor 101 for outputting heat of absorption; a heat exchanger is provided in the regeneration reactor 103 for providing heat required for regeneration of the carbon dioxide absorption solution.
- the compression device 200 includes an absorption reactor 201, a regeneration reactor 202, a booster pump 203, and a throttle valve 204; an absorption reactor 201 is coupled to the regeneration reactor 102 of the compression device 100; the compression device 300 includes an absorption reactor 301, regeneration Reactor 302, booster pump 303 and throttle valve 304; absorption reactor 301 is coupled to regeneration reactor 202 of compression unit 200.
- the condenser 400 is connected to the regeneration reactor 302, receives carbon dioxide gas, and condenses the carbon dioxide gas into a liquid state.
- the heat exchangers in the respective absorption reactors in the compression subsystem are connected to the heat exchangers 32 of the heat pump subsystem (since the connection relationship is the same as in Fig. 4, which is a simple drawing, and the connection relationship is not shown in Fig. 5)
- the heat absorbed by the absorption of carbon dioxide is sent to the heat pump generator to heat the heat pump to absorb the solution to generate working fluid vapor, thereby saving the amount of external heat source.
- the absorption heat exchanger 26 in the heat pump subsystem may also be connected to a heat exchanger in each of the regeneration reactors for heating the carbon dioxide absorption solution in the regeneration reactor (since the connection relationship is the same as in FIG. 4, for the sake of simplicity) In the face, the connection relationship is not shown in Figure 5.)
- FIG. 6 there is shown a schematic diagram of a carbon dioxide separation and recovery system proposed in Embodiment 6 of the present invention.
- the present embodiment adds a liquid supply pump 24, a carbon dioxide absorption solution from the heat exchanger 27, and an absorbent crystallizer 28, and functions to enable the heat pump generator 21 and the heat pump absorber.
- the difference in concentration of the carbon dioxide absorbing solution in 22 remains relatively stable.
- this embodiment also adds a carbon dioxide absorbing solution from the heat exchanger 44 in order to further improve the regeneration efficiency of the absorbing liquid.
- the liquid supply pump 24 is connected to the heat pump generator 21 and the heat pump absorber 22 through a pipe for conveying a part of the carbon dioxide absorbing solution in the heat pump generator 21 and the heat pump absorber 22 to the absorbent crystallizer 28.
- the absorbent crystallizer 28 includes: a crystallizer carbon dioxide absorbing solution inlet connected to the carbon dioxide absorbing solution outlet of the liquid feeding pump 24 through a pipe; a crystallizer dilute solution outlet connected to the carbon dioxide absorbing solution inlet of the heat pump generator 21 through a pipe; And a crystallization solution output port connected to the carbon dioxide absorbing solution inlet of the heat pump absorber 22 through a pipe.
- the absorbent crystallizer 28 also has a refrigerant circulation device for supplying a cooling amount to the carbon dioxide absorbing solution in the absorbent crystallizer 28, so that the carbon dioxide in the absorbent crystallizer 28 absorbs the solution temperature. When it is lowered, when it reaches below the crystallization temperature of the absorbent, the precipitated crystals are precipitated. After the solid-liquid separation, the absorbent crystals are output from the output port containing the crystal solution to the heat pump absorber 22, and the diluted solution having the reduced concentration of the absorbent is supplied from the dilute solution outlet of the crystallizer to the heat pump generator 21.
- the carbon dioxide absorbing solution is disposed from the heat exchanger 27 on the pipe to which the absorbent crystallizer 28 and the liquid feeding pump 24 are connected, for the carbon dioxide absorbing solution entering the absorbent crystallizer 28, and the thinning output from the absorbent crystallizer.
- the solution is subjected to heat exchange with a crystal-containing solution output from the absorbent crystallizer.
- the beneficial effect of the carbon dioxide absorbing solution from the heat exchanger 27 is that after the heat exchange, the temperature of the carbon dioxide absorbing solution entering the absorbent crystallizer 28 is lowered, which facilitates the formation of crystals, thereby saving the amount of cooling required for crystallization;
- the temperature of the dilute solution of the generator 21 is increased to facilitate absorption of the evaporation of the circulating working medium;
- the temperature of the output crystallization solution containing the absorbent is also increased, thereby facilitating the operation of the heat pump absorber 22 at a higher temperature. .
- the carbon dioxide absorbing solution from the heat exchanger can also be used to exchange heat between the carbon dioxide absorbing solution from the heat pump absorber and the crystallization carbon dioxide absorbing solution from the absorbent crystallizer for the carbon dioxide absorbing solution from the heat pump absorber.
- Heat exchange with absorbent crystals from an absorbent crystallizer or a carbon dioxide absorption solution containing absorbent crystals, and a carbon dioxide absorption solution from a heat pump absorber and a post-crystallization carbon dioxide absorption solution and absorbent from an absorbent crystallizer The crystallization or carbon dioxide absorbing solution containing the crystallization of the absorbent is subjected to heat exchange.
- the carbon dioxide absorbing solution is supplied from the heat exchanger 44 to a pipe connecting the absorbing liquid outlet at the bottom of the absorption tower 10 and the absorbing liquid inlet at the upper portion of the regeneration tower 40 for transporting from the bottom 41 of the regeneration tower 40 to the first
- the heat exchange between the carbon dioxide absorbing solution in which the heat exchanger 31 occurs and the carbon dioxide absorbing solution transported from the bottom of the absorption tower to the regeneration tower to increase the temperature of the carbon dioxide absorbing solution entering the regeneration tower 40, thereby further enhancing the regeneration tower 40 carbon dioxide absorption solution regeneration efficiency.
- Embodiment 7 of the present invention also proposes a carbon dioxide compression method which is implemented by the compression device described in Embodiment 1.
- the method includes the following steps:
- the absorption reactor receives carbon dioxide gas, and the carbon dioxide absorption solution in the absorption reactor Absorbing carbon dioxide gas, carbon dioxide and carbon dioxide absorption solution adsorption, dissolution or chemical reaction.
- the absorbent of the carbon dioxide absorbing solution is: potassium carbonate, monoethanolamine, diethanolamine, methyldiethanolamine, glycine, propylene carbonate, polyethylene glycol dimethyl ether, or a mixture of two or more thereof .
- the absorbent is potassium carbonate
- carbon dioxide and potassium carbonate react in the absorption reactor to produce potassium hydrogencarbonate.
- the carbon dioxide-absorbing carbon dioxide absorption solution in the absorption reactor is pressurized and sent to the regeneration reactor;
- the carbon dioxide absorbing solution from the absorption reactor is heated to form a carbon dioxide gas and a carbon dioxide absorbing solution;
- the carbon dioxide absorbing solution generated in the regeneration reactor is sent to the absorption reactor.
- the carbon dioxide compression method proposed in Embodiment 8 of the present invention is realized by the compression system described in Embodiment 2.
- the method comprises a multi-stage series compression process, and the compression process of each stage is the same as that of the embodiment 6.
- the carbon dioxide gas entering the absorption reactor is the regeneration of the previous compression process.
- the carbon dioxide gas produced by the reactor is condensed to form a carbon dioxide liquid.
- Embodiment 9 of the present invention also proposes a carbon dioxide compression method comprising the carbon dioxide compression method described in the foregoing Embodiment 7 or Embodiment 8, and further including a heat pump cycle process.
- the heat pump cycle process includes: in the absorption reactor, the absorption heat released by the carbon dioxide gas absorbed by the carbon dioxide absorption solution is used to heat the first heat pump absorption solution. Producing working fluid vapor; and the working fluid vapor is sent to the heat pump absorber and absorbed by the second heat pump absorption solution in the heat pump absorber, releasing heat of absorption, which is transferred to the regeneration In the reactor, it is used to heat the carbon dioxide absorbing solution in the regeneration reactor.
- the heat lost by the system is provided by an external heat source, but the heat pump cycle described above can reduce the amount of external heat source, thereby effectively utilizing heat and improving energy efficiency.
- the heat generated by the absorption of carbon dioxide during the compression process of each stage can be used to heat the heat pump cycle, and the concentrated heat pump absorbs the solution and produces the working fluid.
- the heat of absorption generated by the absorption of working fluid vapor can also be used in the regeneration process in the various stages of the regeneration reactor.
- Embodiment 10 of the present invention also proposes a carbon dioxide separation and recovery method using the carbon dioxide separation and recovery system described in Embodiment 5.
- the carbon dioxide separation and recovery method includes carbon dioxide Off process, carbon dioxide compression process and heat pump cycle process.
- the carbon dioxide separation process comprises: contacting the combustion gas with the carbon dioxide absorption solution in the absorption tower, causing the carbon dioxide absorption solution to absorb the carbon dioxide in the flue gas and falling to the bottom of the absorption tower; and the carbon dioxide absorption solution after absorbing the carbon dioxide at the bottom of the tower It is output to the regeneration tower and heated to heat up, so that the absorption liquid that absorbs carbon dioxide is decomposed to form two phases of gas and liquid.
- the gas is mainly carbon dioxide gas, and the carbon dioxide content in the liquid formed by regeneration is reduced due to the formation of a gaseous state due to a large amount of carbon dioxide. .
- the carbon dioxide compression process comprises multi-stage compression, and each stage of the compression step comprises: absorbing the carbon dioxide absorbing solution of the reactor to absorb carbon dioxide; then the carbon dioxide absorbing solution is sent to the regeneration reactor, and is heated to decompose out gaseous carbon dioxide and regenerated carbon dioxide.
- the solution is absorbed, the pressure of the regeneration reactor is higher than the pressure of the absorption reactor; the regenerated carbon dioxide absorption solution is sent back to the absorption reactor.
- the carbon dioxide gas generated from the regeneration reactor is sent to the next stage of compression for compression; after multiple stages of compression, high pressure carbon dioxide gas can be obtained in a subsequent compression step; condensation of high pressure carbon dioxide gas is obtained.
- High-pressure carbon dioxide liquid can be more conducive to the recovery, storage and transportation of carbon dioxide.
- the heat pump cycle process includes: in the absorption reactor, the absorption heat released by the carbon dioxide gas absorbed by the carbon dioxide absorption solution is used to heat the first heat pump absorption solution to generate working fluid vapor; and the work
- the mass of steam is delivered to the heat pump absorber and absorbed by the second heat pump absorption solution in the heat pump absorber, releasing heat of absorption, which is sent to the regeneration reactor for heating the regeneration reactor
- the carbon dioxide absorption solution For the multi-stage compression, during the compression process of each stage, the heat generated by the absorption of carbon dioxide can be used to heat the heat pump cycle process, for concentrating the heat first pump to absorb the solution and produce the working fluid. Steam; In the heat pump cycle, the heat of absorption generated by the absorption of working fluid vapor can also be used in the regeneration process in the various stages of the regeneration reactor.
- the carbon dioxide gas formed after the regeneration in the carbon dioxide separation process may be passed to the second heat exchanger of the heat pump generator, and the liquid formed after the regeneration is passed to the first heat exchanger of the heat pump generator. It is used for heating the carbon dioxide absorbing solution in the heat pump generator to form working fluid vapor; the above-mentioned working medium vapor enters the heat pump absorber through the steam passage, and is absorbed and absorbed by the second heat pump absorbing solution in the heat pump absorber, The heat of absorption is used to heat the carbon dioxide absorbing solution in the reboiler by heat exchange.
- the second heat pump absorption solution in the heat pump absorber is in the heat pump generator
- the difference between the molar fraction of the absorbent of the first heat pump absorption solution is greater than 0.1.
- the greater the concentration difference is, the more favorable the temperature in the heat pump absorber is, thereby facilitating the regeneration of the carbon dioxide absorption solution; the output from the first heat exchanger is generated.
- the liquid is returned to the top of the absorption tower for reusing the carbon dioxide in the flue gas; the gas of the second heat exchanger output is gas-liquid separated to obtain high-purity carbon dioxide.
- the carbon dioxide separation and recovery method of the embodiment 10 can remove more than 80% of the carbon dioxide in the flue gas, and the purity of the separated carbon dioxide can reach 99% or more without the water vapor component (ie, the dry gas content), and after three After the stage compression and condensation, a carbon dioxide liquid of 2. 7 MPa, _10 ° C can be obtained.
- Embodiment 11 of the present invention also proposes a carbon dioxide separation and recovery method, which is different from the separation and recovery method of Embodiment 10 in that it employs the separation system described in Embodiment 6.
- This embodiment increases the circulation step of the heat pump absorption solution in the heat pump generator and the heat pump absorber compared to the embodiment 10, which comprises: absorbing a part of the second heat pump absorption solution in the heat pump absorber and a part of the first heat pump in the heat pump generator The solution is commonly introduced into the absorbent crystallizer, and the mixed heat pump absorption solution in the crystallizer is cooled, thereby forming the absorbent crystals, and then performing solid-liquid separation; the crystallization heat pump absorption solution obtained after the solid-liquid separation is introduced into the heat pump.
- the crystallization of the absorbent after the solid-liquid separation is introduced into the heat pump absorber in such a manner as to contain the crystallization solution, so that the difference in the concentration of the solution in the heat pump absorber and the heat pump generator can be kept within a certain range.
- the present invention can achieve continuity of the carbon dioxide separation process.
- an external heat source can be passed to cool the mixed heat pump absorption solution in the crystallizer.
- the heat pump absorber outputs the heat pump absorption solution after the crystallization.
- the heat pump absorbs the solution for heat exchange.
- the crystallization of the absorbent is transferred to the heat pump absorber, and the heat pump absorbing solution output by the heat pump absorber is cooled, the crystallization of the absorbing agent is performed with the heat pump absorbing solution output by the heat pump absorber. Heat exchange.
- the heat pump absorber is before the crystallization heat pump absorption solution is sent to the heat pump generator before the crystallization of the absorber is sent to the heat pump absorber, and the heat pump absorber output heat pump absorbs the solution for cooling.
- the output heat pump absorption solution exchanges heat with the absorbent crystallized and crystallized heat pump absorption solution.
- the temperature of the heat pump absorption solution introduced into the heat pump absorber and the heat pump generator can be increased to maintain the operating temperature of the heat pump absorption solution in the heat pump absorber and the heat pump generator, and at the same time, the absorption into the absorbent crystallizer can be reduced.
- the heat pump in the middle absorbs the temperature of the solution, thereby saving the amount of cold source.
- heat exchange is performed between the carbon dioxide absorbing solution transported from the bottom of the regeneration tower to the first heat exchanger and the absorbing liquid transported from the bottom of the adsorption tower to the regeneration tower to enhance the carbon dioxide absorbing solution entering the regeneration tower.
- the temperature further increases the regeneration efficiency of the carbon dioxide absorbing solution of the regeneration tower.
- the carbon dioxide separation and recovery system proposed by the invention actually combines the carbon dioxide chemical absorption technology with the absorption heat pump circulation technology, and enhances the absorption heat of the lower grade released by the carbon dioxide absorption process by the action of the absorption heat pump cycle to be used for
- the carbon dioxide absorption solution regenerates the higher grade regenerative heat, thereby achieving a substantial reduction or no need for external cooling water and externally driven heat sources.
- the present invention employs an absorption compression process to compress the separated carbon dioxide, and the compression process can be carried out by using waste heat, thereby greatly eliminating power or other driving force.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104154686A (zh) * | 2014-09-05 | 2014-11-19 | 哈尔滨工业大学 | 一种带蒸气疏导的液封式节流降压膨胀装置 |
CN113877365A (zh) * | 2020-07-03 | 2022-01-04 | 中石化石油工程技术服务有限公司 | Co2捕集系统及工艺 |
CN114272735A (zh) * | 2021-12-27 | 2022-04-05 | 北京华源泰盟节能设备有限公司 | 一种烟气余热利用与碳捕集一体化系统 |
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CN105258380B (zh) * | 2015-10-26 | 2018-05-11 | 天津大学 | 利用混合工质通过热力驱动的紧凑型脱除co2的系统 |
CN105258141B (zh) * | 2015-10-26 | 2018-03-09 | 天津大学 | 独立太阳能相变梯级蓄热间接热力驱动脱除co2的系统 |
CN105251316B (zh) * | 2015-10-26 | 2018-01-05 | 天津大学 | 独立太阳能直接热力驱动利用混合工质脱除co2的系统 |
CN107677002B (zh) * | 2017-09-18 | 2020-02-18 | 东南大学 | 低品位热驱动吸收式化学反应制冷热泵循环装置及方法 |
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US6883327B2 (en) * | 2003-04-30 | 2005-04-26 | Mitsubishi Heavy Industries, Ltd. | Method and system for recovering carbon dioxide |
CN101033897A (zh) * | 2007-04-19 | 2007-09-12 | 北京科技大学 | 一种中低温余热转化为蒸汽的系统及方法 |
CN101314102A (zh) * | 2008-05-30 | 2008-12-03 | 西安热工研究院有限公司 | 燃煤电厂烟气中二氧化碳捕集方法和装置 |
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2010
- 2010-02-25 CN CN201080018322.9A patent/CN102413901B/zh not_active Expired - Fee Related
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US5582020A (en) * | 1994-11-23 | 1996-12-10 | Mainstream Engineering Corporation | Chemical/mechanical system and method using two-phase/two-component compression heat pump |
US6883327B2 (en) * | 2003-04-30 | 2005-04-26 | Mitsubishi Heavy Industries, Ltd. | Method and system for recovering carbon dioxide |
CN101033897A (zh) * | 2007-04-19 | 2007-09-12 | 北京科技大学 | 一种中低温余热转化为蒸汽的系统及方法 |
CN101314102A (zh) * | 2008-05-30 | 2008-12-03 | 西安热工研究院有限公司 | 燃煤电厂烟气中二氧化碳捕集方法和装置 |
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CN104154686A (zh) * | 2014-09-05 | 2014-11-19 | 哈尔滨工业大学 | 一种带蒸气疏导的液封式节流降压膨胀装置 |
CN113877365A (zh) * | 2020-07-03 | 2022-01-04 | 中石化石油工程技术服务有限公司 | Co2捕集系统及工艺 |
CN114272735A (zh) * | 2021-12-27 | 2022-04-05 | 北京华源泰盟节能设备有限公司 | 一种烟气余热利用与碳捕集一体化系统 |
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