CN112619349A - Carbon emission reduction system of thermal power plant - Google Patents

Carbon emission reduction system of thermal power plant Download PDF

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Publication number
CN112619349A
CN112619349A CN202011373156.6A CN202011373156A CN112619349A CN 112619349 A CN112619349 A CN 112619349A CN 202011373156 A CN202011373156 A CN 202011373156A CN 112619349 A CN112619349 A CN 112619349A
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CN
China
Prior art keywords
thermal power
power plant
module
carbon
flue gas
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Pending
Application number
CN202011373156.6A
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Chinese (zh)
Inventor
沈乾坤
窦瑾
陈雷
尤佐权
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Xian Xire Control Technology Co Ltd
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Xian Xire Control Technology Co Ltd
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Priority to CN202011373156.6A priority Critical patent/CN112619349A/en
Publication of CN112619349A publication Critical patent/CN112619349A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/02Separation 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 adsorption, e.g. preparative gas chromatography
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/14Separation 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
    • B01D53/1456Removing acid components
    • B01D53/1475Removing carbon dioxide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/14Separation 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
    • B01D53/1493Selection of liquid materials for use as absorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/14Separation 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
    • B01D53/18Absorbing units; Liquid distributors therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/22Separation 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 diffusion
    • B01D53/228Separation 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 diffusion characterised by specific membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/22Separation 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 diffusion
    • B01D53/229Integrated processes (Diffusion and at least one other process, e.g. adsorption, absorption)
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/02Preparation of oxygen
    • C01B13/0203Preparation of oxygen from inorganic compounds
    • C01B13/0207Water
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/04Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
    • C01B3/042Decomposition of water
    • C01B3/045Decomposition of water in gaseous phase
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/50Carbon dioxide
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/008Adaptations for flue gas purification in steam generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F23L7/007Supplying oxygen or oxygen-enriched air
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/22Separation 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 diffusion
    • B01D2053/221Devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2252/00Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/20Organic absorbents
    • B01D2252/202Alcohols or their derivatives
    • B01D2252/2023Glycols, diols or their derivatives
    • B01D2252/2026Polyethylene glycol, ethers or esters thereof, e.g. Selexol
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2253/00Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10Inorganic adsorbents
    • B01D2253/112Metals or metal compounds not provided for in B01D2253/104 or B01D2253/106
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/50Carbon oxides
    • B01D2257/504Carbon dioxide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00Specific waste
    • F23G2209/14Gaseous waste or fumes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07005Injecting pure oxygen or oxygen enriched air
    • 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
    • Y02CCAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00Capture or disposal of greenhouse gases
    • Y02C20/40Capture or disposal of greenhouse gases of CO2
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/12Heat utilisation in combustion or incineration of waste
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/36Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • 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 carbon emission reduction system of a thermal power plant, which belongs to the technical field of the thermal power plant and comprises a flue gas treatment module, a water vapor collection module, an oxygen extraction module, a carbon oxide collection and separation module and a carbon oxide treatment module, wherein the flue gas treatment module is used for pretreating flue gas discharged by a boiler of the thermal power plant, the water vapor collection module is used for collecting residual water vapor in a steam turbine inside the thermal power plant, the oxygen extraction module is used for hydrolyzing the collected water vapor to obtain oxygen, the carbon oxide collection and separation module is used for separating and collecting main carbon oxide carbon dioxide in the flue gas, and the carbon oxide treatment module is used for treating and absorbing the carbon dioxide obtained in the carbon oxide collection and separation module; the system carries out sufficient oxidation of the carbon oxides through secondary combustion, and the carbon oxides are dissolved by using a dissolving agent, so that the carbon emission is low, the cost is low, and the resource utilization rate is high.

Description

Carbon emission reduction system of thermal power plant
Technical Field
The invention belongs to the technical field of thermal power plants, and particularly relates to a carbon emission reduction system of a thermal power plant.
Background
The global warming problem of excessive CO2 emissions has become one of the most serious challenges facing human society since the 21 st century. Recent data published by the world statistics institute shows that china has surpassed the united states as the world's largest CO2 emitter. The emission of CO2 in China industry, particularly in thermal power industry, accounts for about 40% of the total emission of China, so that the problem of CO2 emission reduction in thermal power industry needs to pay attention. For the thermal power industry, the currently mature CO2 emission reduction methods are mainly classified into the following categories: the energy utilization efficiency is improved, the CO2 is captured and stored, and low-carbon fuel is replaced.
The three emission reduction methods have advantages and disadvantages: the energy utilization efficiency is improved, the emission reduction effect is direct, but the emission reduction potential is limited; CO2 is captured and stored as a new emission reduction technology, most of the technologies are still in the theoretical perfection stage at present due to huge energy consumption and expensive economic cost; the low-carbon fuel has good substitute comprehensive performance and provides test for balancing natural gas supply and demand relationship of China.
Disclosure of Invention
The invention aims to provide a carbon emission reduction system of a thermal power plant, which can be used for fully oxidizing carbon oxides through secondary combustion and dissolving the carbon oxides by using a dissolving agent, and has the advantages of low carbon emission, low cost and high resource utilization rate.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a thermal power plant carbon emission reduction system, this thermal power plant carbon emission reduction system includes flue gas processing module, vapor collection module, oxygen extraction module, carbon oxide collection separation module, carbon oxide processing module, flue gas processing module is used for the flue gas preliminary treatment that thermal power plant's boiler discharged, and the vapor collection module is arranged in the collection of surplus vapor in the inside steam turbine of thermal power plant, and the oxygen extraction module is used for carrying out the oxygen that hydrolyzes the vapor that obtains with collecting, and carbon oxide collection separation module is arranged in separating and collecting the main carbon oxide carbon dioxide in the flue gas, and carbon oxide processing module is arranged in handling the carbon dioxide that obtains in the absorption carbon oxide collection separation module.
Preferably, the flue gas treatment module comprises a secondary combustion box, one end of the secondary combustion box is connected with the oxygen inlet pipeline, and the other end of the secondary combustion box is connected with the flue gas inlet pipeline.
Preferably, the flue gas inlet pipeline comprises a waste flue gas absorption pipeline arranged inside the thermal power plant and also comprises a discharge pipeline in the purification system.
Preferably, the steam collecting module catches the case including covering with the outside steam of steam turbine, and the inside air compressor that sets up of steam catching case, and the steam catches case and is close to steam turbine department and sets up reverse osmosis membrane simultaneously, and the inside condensation duct that has still placed of steam catching case.
Preferably, the oxygen extraction module is including connecting pipe on the vapor capture box, and connecting pipe is far away from vapor capture box end and is fixed with the hydrolysis unit, and hydrolysis unit one end discharge hydrogen, one end discharge oxygen, and the discharge hydrogen end is fixed with hydrogen collection device, and the discharge oxygen end is connected to carbon oxide and collects the separation module.
Preferably, the carbon oxide collecting and separating module comprises a separating box body, the side surface of the separating box body is connected to the secondary combustion box, a dissolving agent inlet pipeline is further fixed on the side surface of the separating box body, a gas outlet pipeline is fixed on the side of the separating box body opposite to the dissolving agent inlet pipeline, and a pressurizing valve is fixed on the top of the separating box body.
Preferably, the solvent solution comprises a dimethyl ether of polyethylene glycol solution.
Preferably, the carbon oxide treatment module is including handling the case, handle the case upper end and be connected to separation bottom of the case portion, handle bottom of the case portion and slide and have put the framework, put the inside adsorption material of placing of framework.
Preferably, the sorbent material comprises limestone particles.
The invention has the beneficial effects that:
1. this carbon emission reduction system of thermal power plant, set up vapor collection module and catch the case including covering with the outside vapor of steam turbine, vapor catches the incasement portion and sets up air compressor, vapor catches the case and is close to steam turbine department and sets up reverse osmosis membrane simultaneously, the inside condensation duct that has still placed of vapor catches the incasement portion, cool off vapor through condensation duct, form liquid water, liquid water is hydrolysised through the hydrolysis unit who sets up, obtain oxygen, can supply the afterburning case to burn, can obtain hydrogen simultaneously, the maximize utilizes the resource.
2. This carbon emission reduction system of thermal power plant sets up carbon oxide and collects separation module including the separation box, separation box side is connected to the afterburning case, the side still is fixed with dissolving agent entering pipeline, the relative dissolving agent of separation box gets into the pipeline side and is fixed with gaseous exhaust pipe, separation box top is fixed with the pressure valve, pressurize to separation box inside through the pressure valve, improve carbon oxide after the pressurization and at the inside solubility of dissolving agent, improve carbon oxide's absorptivity.
3. This thermal power plant carbon emission reduction system sets up carbon oxide treatment module including handling the case, handles the case upper end and is connected to separation bottom of the case portion slides and has put the framework, puts the inside adsorption material of placing of framework, and adsorption material adopts the lime stone to adsorb, and the cost is lower, and adsorption effect is good simultaneously, and the result utilization value after the absorption is high.
Drawings
FIG. 1 is a schematic structural diagram of a carbon emission reduction system of a thermal power plant provided by the invention;
fig. 2 is a schematic structural block diagram of a thermal power plant carbon emission reduction system provided by the invention.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 2 together, a thermal power plant carbon emission reduction system according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
This thermal power plant carbon emission reduction system includes flue gas treatment module, vapor collection module, oxygen extraction module, carbon oxide and collects separation module, carbon oxide treatment module, flue gas treatment module is used for the flue gas preliminary treatment of thermal power plant's boiler emission, and the vapor collection module is arranged in the collection of surplus vapor in the inside steam turbine of thermal power plant, and oxygen extraction module is used for carrying out the oxygen that obtains of hydrolysising with the vapor that obtains of collecting, and carbon oxide collection separation module is arranged in separating and collecting the main carbon oxide carbon dioxide in the flue gas, and carbon oxide treatment module is arranged in handling the carbon dioxide that obtains in absorbing carbon oxide collection separation module.
Specifically, the flue gas treatment module includes the secondary combustion case, and oxygen lets in the pipeline is connected to secondary combustion case one end, and the flue gas admission pipeline is connected to one end.
Specifically, the flue gas inlet pipeline comprises a waste flue gas absorption pipeline arranged inside the thermal power plant and also comprises a discharge pipeline in the purification system.
The steam collecting module comprises a cover and a steam turbine outside steam capturing box, an air compressor is arranged inside the steam capturing box, a reverse osmosis membrane is arranged at the position, close to the steam turbine, of the steam capturing box, and a condensing pipeline is further arranged inside the steam capturing box.
Specifically, the oxygen draws the module including connecting pipeline on the vapor capture case, connecting pipeline keep away from vapor capture case end and are fixed with the hydrolysis unit, hydrolysis unit one end exhaust hydrogen, one end exhaust oxygen, exhaust hydrogen end are fixed with hydrogen collection device, and the exhaust oxygen end is connected to carbon oxide and collects the separation module.
Specifically, separation module is collected to carbon oxide includes the separation box, and the separation box side is connected to the secondary combustion case, and the side still is fixed with dissolving agent entering pipeline, and the relative dissolving agent entering pipeline side of separation box is fixed with gas exhaust pipe, and the separation box top is fixed with the pressure valve, pressurizes through the pressure valve inside the polyethylene glycol dimethyl ether solution.
Specifically, the dissolving agent solution comprises a polyethylene glycol dimethyl ether solution, the polyethylene glycol dimethyl ether solution is added into the dissolving agent entering pipeline, and the carbon oxide is dissolved through the polyethylene glycol dimethyl ether solution.
Specifically, carbon oxide treatment module is connected to including handling the case upper end the separation bottom half, handles the bottom half and slides and has put the framework, puts the inside adsorption material of placing of framework.
Specifically, the adsorption material comprises limestone particles, and the dissolved polyethylene glycol dimethyl ether solution is mixed with limestone to fully absorb carbon dioxide in the adsorption material and reduce carbon emission.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a thermal power plant carbon emission reduction system, its characterized in that, this thermal power plant carbon emission reduction system includes flue gas processing module, vapor collection module, oxygen extraction module, carbon oxide collection separation module, carbon oxide processing module, flue gas processing module is used for the flue gas preliminary treatment that thermal power plant's boiler discharged, and the vapor collection module is arranged in the collection of surplus vapor in the inside steam turbine of thermal power plant, and the oxygen extraction module is used for carrying out the oxygen that obtains of hydrolysising with the vapor that obtains of collecting, and carbon oxide collection separation module is used for separating and collecting the main carbon oxide carbon dioxide in the flue gas, and carbon oxide processing module is used for handling the carbon dioxide that obtains in the absorption carbon oxide collection separation module.
2. The thermal power plant carbon emission reduction system of claim 1, wherein the flue gas treatment module comprises a secondary combustion box, one end of the secondary combustion box is connected with the oxygen inlet pipeline, and the other end of the secondary combustion box is connected with the flue gas inlet pipeline.
3. The thermal power plant carbon emission reduction system according to claim 2, wherein the flue gas inlet pipeline comprises a waste flue gas absorption pipeline arranged inside the thermal power plant, and further comprises a discharge pipeline in the purification system.
4. The thermal power plant carbon emission reduction system according to claim 1, wherein the water vapor collection module comprises a water vapor capture box covering the outside of the steam turbine, an air compressor is arranged inside the water vapor capture box, a reverse osmosis membrane is arranged at the position of the water vapor capture box close to the steam turbine, and a condensation pipeline is further arranged inside the water vapor capture box.
5. The thermal power plant carbon emission reduction system of claim 4, wherein the oxygen extraction module comprises a connection pipeline connected to the water vapor capture tank, a hydrolysis device is fixed to the connection pipeline away from the water vapor capture tank, one end of the hydrolysis device discharges hydrogen and the other end discharges oxygen, a hydrogen collection device is fixed to the hydrogen discharge end, and the oxygen discharge end is connected to the carbon oxide collection and separation module.
6. The thermal power plant carbon emission reduction system according to claim 2, wherein the carbon oxide collecting and separating module comprises a separating box body, the side surface of the separating box body is connected to the secondary combustion box, a dissolving agent inlet pipeline is further fixed on the side surface of the separating box body, a gas outlet pipeline is fixed on the side of the separating box body opposite to the dissolving agent inlet pipeline, and a pressurizing valve is fixed on the top of the separating box body.
7. The thermal power plant carbon emission reduction system of claim 6, wherein the solvent solution comprises a dimethyl ether of polyethylene glycol solution.
8. The thermal power plant carbon emission reduction system of claim 6, wherein the carbon oxide treatment module comprises a treatment box, the upper end of the treatment box is connected to the bottom of the separation box, a placement frame is arranged on the bottom of the treatment box in a sliding mode, and an adsorption material is placed inside the placement frame.
9. The thermal power plant carbon emission reduction system of claim 8, wherein the sorbent material comprises limestone particles.
CN202011373156.6A 2020-11-30 2020-11-30 Carbon emission reduction system of thermal power plant Pending CN112619349A (en)

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