CN113416131B - Method and device for preparing methyl formate and purifying natural gas by carbon capture in gas power plant - Google Patents
Method and device for preparing methyl formate and purifying natural gas by carbon capture in gas power plant Download PDFInfo
- Publication number
- CN113416131B CN113416131B CN202110781416.1A CN202110781416A CN113416131B CN 113416131 B CN113416131 B CN 113416131B CN 202110781416 A CN202110781416 A CN 202110781416A CN 113416131 B CN113416131 B CN 113416131B
- Authority
- CN
- China
- Prior art keywords
- gas
- power plant
- tank
- outlet
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/11—Purification; Separation; Use of additives by absorption, i.e. purification or separation of gaseous hydrocarbons with the aid of liquids
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Inorganic Chemistry (AREA)
- Metallurgy (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to a device and a method for preparing methyl formate and purifying natural gas by capturing carbon in a gas power plant, which are characterized by comprising the following steps: the device comprises an absorption tank, a reaction device, a separation device, a gas power plant, an electrolytic tank, a pump, a methyl formate storage tank, an oxygen storage tank and a hydrogen storage tank; the absorption tank is connected with the gas power plant, the separation device and the reaction device through a pump; the reaction device is connected with the hydrogen storage tank, the hydrogen storage tank is connected with the electrolytic tank, and the reaction device is connected with the separation device; the electrolytic tank is connected with the oxygen storage tank, the oxygen storage tank is connected with the gas power plant, the separation device is connected with the electrolytic tank, the separation device is connected with the methyl formate storage tank, and the separation device is connected with the absorption tank. The method can simultaneously achieve the aims of capturing carbon dioxide before and after combustion, producing value-added chemicals and purifying natural gas.
Description
Technical Field
The invention relates to a method and a device for capturing carbon dioxide, preparing products and purifying raw materials, in particular to a method and a device for preparing methyl formate and purifying natural gas by capturing carbon in a gas power plant.
Background
Existing carbon capture modes mainly comprise three types of capture before combustion, capture in combustion and capture after combustion. The capture technology before combustion mainly comprises the steps of gasifying carbon-containing fossil fuel through a gasifier, purifying flue gas and the like to form synthesis gas mainly comprising carbon dioxide and hydrogen, separating carbon dioxide by a physical absorption method, sending the purified fuel gas into a gas turbine for combustion to do work, and finally separating and removing the carbon dioxide. However, the fuel gasification step of the pre-combustion capture technology is more complex and costly than the combustion step; the capture technology is also called oxygen-enriched combustion capture technology, and pure oxygen is used for replacing air to mix with fuel for combustion, so that the concentration of carbon dioxide in the generated flue gas is higher, and the main components in the flue gas are water and carbon dioxide, and the carbon dioxide can be separated only by condensation and dehydration. However, oxygen-enriched combustion requires a large amount of high-purity oxygen, which greatly increases the cost of the oxygen production equipment; the post-combustion capture technology is to introduce the flue gas generated by combustion into a capture device, and generally adopts a chemical absorption separation method to carry out absorption separation and desorption recovery. Chemisorption separations are well established. Of course, other technical means such as physical absorption, temperature and pressure swing adsorption, membrane separation, etc. are also available for post-combustion capture. No literature report and practical application similar to the technical scheme of the invention are known.
Disclosure of Invention
The invention has the conception foundation that the invention aims to accelerate the development of low-carbon economy and realize the main purposes of capturing carbon dioxide in a gas power plant, preparing methyl formate and purifying natural gas, optimizes the carbon dioxide capturing flow, not only can provide a carbon neutralization system frame thought of a novel carbon dioxide capturing and utilizing method, but also can realize the economic value-added targets of purifying natural gas and preparing methyl formate.
The invention aims to solve the technical problem of providing a method and a device for preparing methyl formate and purifying natural gas by capturing carbon in a gas power plant, and simultaneously achieving the aims of capturing carbon dioxide before and after combustion, producing value-added chemicals and purifying natural gas.
One of the schemes adopted for solving the technical problems is that a device for preparing methyl formate and purifying natural gas by capturing carbon in a gas power plant is characterized in that the device comprises: an absorption tank 1, a reaction device 2, a separation device 3, a gas power plant 4, an electrolytic tank 5, a pump 6, a methyl formate storage tank 7, an oxygen storage tank 8 and a hydrogen storage tank 9; the gas inlet 1-1 of the absorption tank 1 is connected with the gas outlet 4-3 of the gas power plant 4, the solution inlet 1-2 of the absorption tank 1 is connected with the third outlet 3-4 of the separation device 3, the gas outlet 1-3 of the absorption tank 1 is connected with the gas inlet 4-2 of the gas power plant 4, and the solution outlet 1-4 of the absorption tank 1 is connected with the solution inlet 2-1 of the reaction device 2 through a pump 6; the gas inlet 2-2 of the reaction device 2 is connected with the hydrogen outlet 9-2 of the hydrogen storage tank 9, the hydrogen inlet 9-1 of the hydrogen storage tank 9 is connected with the hydrogen outlet 5-4 of the electrolytic tank 5, and the solution outlet 2-3 of the reaction device 2 is connected with the solution inlet 3-1 of the separation device 3; the oxygen outlet 5-3 of the electrolytic tank 5 is connected with the oxygen inlet 8-1 of the oxygen storage tank 8, the oxygen outlet 8-2 of the oxygen storage tank 8 is connected with the oxygen inlet 4-1 of the gas power plant 4, the first outlet 3-2 of the separation device 3 is connected with the liquid inlet 5-2 of the electrolytic tank 5, the second outlet 3-3 of the separation device 3 is connected with the methyl formate storage tank 7, and the third outlet 3-4 of the separation device 3 is connected with the solution inlet of the absorption tank 1.
The second scheme adopted for solving the technical problems is that the method for preparing methyl formate and purifying natural gas by carbon capture in the gas power plant is applied to the device for preparing methyl formate and purifying natural gas by carbon capture in the gas power plant as claimed in claim 1, and is characterized by comprising the following steps:
1) Purifying natural gas: introducing natural gas containing carbon dioxide into a sealed absorption tank 1 filled with methanol solution, collecting pure methane from the absorption tank 1, supplying the pure methane to a gas power plant 4 for power generation to generate electric energy W1, simultaneously recovering carbon dioxide discharged by the gas power plant 4, reducing the temperature from 140-150 ℃ to 35-37 ℃, and then entering the absorption tank 1 through a gas inlet, wherein the temperature of the gas inlet 1-1 is 35-37 ℃, and the flue gas pressure is 0.01Mpa;
2) Preparation of H 2 : the electric energy provided by the photovoltaic power station and/or the wind power station is electrically connected with the power end of the electrolytic tank 5 after passing through the inverter to supply power to the electrode in the electrolytic water of the electrolytic tank 5, the electric energy W2 is consumed, the ionized oxygen of the electrolytic tank 5 is introduced into the oxygen storage tank 8 to supply oxygen for the gas combustion of the gas power plant 4; the hydrogen gas prepared by ionization of the electrolytic tank 5 is introduced into a hydrogen gas storage tank 9, and the hydrogen gas is supplied to the reaction device 2 to participate in capturing carbon dioxide;
3) CO capture 2 : the hydrogen storage tank 9 is used for introducing hydrogen into the reaction device 2, the absorption tank 1 is used for introducing a methanol solution containing carbon dioxide into the reaction device 2 through the pump 6, the hydrogen and the methanol solution containing carbon dioxide react in the reaction device 2 to eliminate carbon dioxide, the generated water-containing methanol methyl formate is sent into the separation device 3 for separation to prepare a methyl formate finished product, and the reaction is incompleteIs passed into the absorption cell 1.
Further, the absorption tank 1 absorbs carbon dioxide contained in the natural gas to purify the natural gas; and introducing the purified natural gas into the gas power plant 4 as fuel through a gas outlet to generate power; carbon dioxide discharged by the recovered gas power plant 4 is introduced into the absorption tank 1, and the flow rate of the flue gas is controlled at 15-25 t/h.
Further, the separation device 3 introduces the separated water into the electrolytic tank 5.
Further, pure methane collected by the absorption tank 1 is used as a raw material to be sent into the gas power plant 4; the generating capacity of the gas power plant 4 is W1, and the system power generation W1 is larger than the electric energy W2 consumed by the electrolyzed water; and (3) recovering carbon dioxide discharged after methane is combusted, wherein a flue gas outlet of the gas power plant 4 is connected with a gas inlet of the absorption tank 1, so that carbon dioxide discharged by the power plant is eliminated.
The invention relates to a method and a device for preparing methyl formate and purifying natural gas by carbon capture in a gas power plant, which adopt a comprehensive technology of carbon dioxide capture and utilization to remove a carbon dioxide analysis and storage step of a chemical absorption separation method, so that the analysis cost and the storage and transportation cost of carbon dioxide can be saved, and chemical value-added products can be directly generated.
Compared with the prior art, the device for preparing methyl formate and purifying natural gas by carbon capture in the gas power plant has the following effects:
1. the absorption tank can capture carbon dioxide in the natural gas raw material and also can capture carbon dioxide in the flue gas exhausted by the gas power plant;
2. on one hand, the hydrogen can be used as a raw material to participate in the synthesis of the chemical value-added product methyl formate; on the other hand, the high-concentration oxygen is introduced into the gas power plant to supply oxygen-enriched combustion to the gas power plant, so that the obtained carbon dioxide has higher concentration, and water and carbon dioxide in the flue gas are conveniently separated;
3. the water and the methanol separated by the separation device can be recycled, so that the running cost of the system is saved, and the influence on the environment and economy is reduced;
4. the method has the advantages of available experimental thermodynamic data, strong process economy and applicability, stable and reliable operation, high efficiency and energy conservation.
Drawings
FIG. 1 is a schematic diagram showing the detailed structure of a device for preparing methyl formate and purifying natural gas by capturing carbon in a gas power plant.
In the figure: 1 an absorption tank, 2 a reaction device, 3 a separation device, 4 a gas power plant, 5 an electrolytic tank, 6 a pump, 7 a methyl formate storage tank, 8 an oxygen storage tank and 9 a hydrogen storage tank; the absorption cell comprises: a 1-1 gas inlet, a 1-2 solution inlet, a 1-3 gas outlet, a 1-4 gas outlet; the reaction apparatus comprises: a 2-1 solution inlet, a 2-2 gas inlet, a 2-3 solution outlet; the separation device comprises: 3-1 solution inlet, 3-2 first outlet, 3-3 second outlet, 3-4 third outlet; the gas power plant comprises: 4-1 oxygen inlet, 4-2 raw material inlet, 4-3 smoke outlet and 4-4 power generation end; the electrolytic cell comprises: a 5-1 power end, a 5-2 liquid inlet, a 5-3 oxygen outlet and a 5-4 hydrogen outlet; the oxygen storage tank includes: an 8-1 oxygen inlet and an 8-2 oxygen outlet; the hydrogen storage tank includes: 9-1 hydrogen inlet, 9-2 hydrogen outlet.
Detailed Description
The invention will be further described with reference to the drawings and examples.
Referring to fig. 1, the device for preparing methyl formate and purifying natural gas by carbon capture in a gas power plant of the invention comprises: the gas-liquid separation device comprises an absorption tank 1, a reaction device 2, a separation device 3, a gas power plant 4, an electrolytic tank 5, a pump 6, a methyl formate storage tank 7, an oxygen storage tank 8 and a hydrogen storage tank 9, wherein a gas inlet 1-1 of the absorption tank 1 is connected with a gas outlet 4-3 of the gas power plant 4, a solution inlet 1-2 of the absorption tank 1 is connected with a third outlet 3-4 of the separation device 3, a gas outlet 1-3 of the absorption tank 1 is connected with a gas inlet 4-2 of the gas power plant 4, and a solution outlet 1-4 of the absorption tank 1 is connected with a solution inlet 2-1 of the reaction device 2 through the pump 6; the gas inlet 2-2 of the reaction device 2 is connected with the hydrogen outlet 9-2 of the hydrogen storage tank 9, the hydrogen inlet 9-1 of the hydrogen storage tank 9 is connected with the hydrogen outlet 5-4 of the electrolytic tank 5, and the solution outlet 2-3 of the reaction device 2 is connected with the solution inlet 3-1 of the separation device 3; the oxygen outlet 5-3 of the electrolytic tank 5 is connected with the oxygen inlet 8-1 of the oxygen storage tank 8, the oxygen outlet 8-2 of the oxygen storage tank 8 is connected with the oxygen inlet 4-1 of the gas power plant 4, the first outlet 3-2 of the separation device 3 is connected with the liquid inlet 5-2 of the electrolytic tank 5, the second outlet 3-3 of the separation device 3 is connected with the methyl formate storage tank 7, and the third outlet 3-4 of the separation device 3 is connected with the solution inlet of the absorption tank 1.
The working flow of the device for preparing methyl formate and purifying natural gas by using the carbon capture of the gas power plant shown in fig. 1 is as follows:
purifying natural gas: the natural gas containing carbon dioxide, 96.12 mol percent of methane and 2.6 mol percent of carbon dioxide are introduced into a sealed absorption tank 1 filled with methanol solution through a gas inlet 1-1 of the absorption tank 1, pure methane is collected from a gas outlet 1-3 of the absorption tank 1 and is connected with a raw material inlet 4-2 of a gas power plant to be supplied to the gas power plant 4 for generating electricity, electric energy W1 is generated, meanwhile, carbon dioxide discharged from a flue gas outlet 4-3 of the gas power plant 4 is recovered, the temperature is reduced to 35-37 ℃ from 140-150 ℃ and then enters the absorption tank 1 through the gas inlet 1-1, the temperature of the gas inlet 1-1 is 35-37 ℃, and the flue gas pressure is 0.01Mpa.
Preparation of H 2 : the electric energy provided by the photovoltaic power station and/or the wind power station is electrically connected with a power end 5-1 of an electrolytic tank 5 after passing through an inverter to supply power to electrodes in electrolytic water of the electrolytic tank 5, the electric energy W2 is consumed, a gas inlet 2-2 of a reaction device 2 is connected with a hydrogen outlet 9-2 of a hydrogen storage tank 9, a hydrogen inlet 9-1 of the hydrogen storage tank 9 is connected with a hydrogen outlet 5-4 of the electrolytic tank 5, and a solution outlet 2-3 of the reaction device 2 is connected with a solution inlet 3-1 of a separation device 3; the oxygen outlet 5-3 of the electrolytic tank 5 is connected with the oxygen inlet 8-1 of the oxygen storage tank 8, the oxygen outlet 8-2 of the oxygen storage tank 8 is connected with the oxygen inlet 4-1 of the gas power plant 4, the first outlet 3-2 of the separation device 3 is connected with the liquid inlet 5-2 of the electrolytic tank 5, the second outlet 3-3 of the separation device 3 is connected with the methyl formate storage tank 7, the third outlet 3-4 of the separation device 3 is connected with the solution inlet of the absorption tank 1, and oxygen ionized by the electrolytic tank 5 is introduced into the oxygen storage tank 8 to supply oxygen for the gas combustion of the gas power plant 4; the hydrogen gas produced by ionization of the electrolytic tank 5 is introduced into the hydrogen storage tank 9, and the hydrogen gas is supplied to the reaction device 2 to participate in capturing carbon dioxide.
CO capture 2 : hydrogen gasThe hydrogen is introduced into the reaction device 2 through the hydrogen inlet 2-2 of the reaction device 2 by the gas storage tank 9, the methanol solution containing carbon dioxide is introduced into the reaction device 2 through the solution inlet 2-1 of the reaction device 2 by the absorption tank 1 through the pump 6, the hydrogen reacts with the methanol solution containing carbon dioxide in the reaction device 2 to eliminate the carbon dioxide, the generated aqueous methanol methyl formate solution is sent into the separation device 3 through the solution inlet 3-1 of the separation device 3 to be separated to prepare a methyl formate finished product, the methyl formate finished product is sent into the methyl formate storage tank 7 from the second outlet 3-3 of the separation device 3, and the incompletely reacted methanol of the separation device 3 is recovered through the 3 rd outlet 3-4 and is introduced into the closed absorption tank 1.
The gas inlet 1-1 of the absorption tank 1 absorbs carbon dioxide contained in the natural gas to purify the natural gas; and introducing the purified natural gas into a gas power plant 4 as fuel through a gas outlet 1-3 to generate power; carbon dioxide exhausted by the recovered gas power plant is introduced into the absorption tank 1 from a flue gas outlet 4-3 of the gas power plant 4 through a gas inlet 1-1 of the absorption tank 1, and the flue gas flow is controlled to be 15-25 t/h; the methanol solution containing carbon dioxide is introduced into the reaction device 2 for subsequent use through the solution outlet 1-4, the pump 6 and the solution inlet 2-1 of the reaction device 2.
The electric energy of the photovoltaic power station and/or the wind power station is connected to the electrode in the electrolytic tank 5 through the inverter, oxygen is separated out from the oxygen outlet 5-3 of the electrolytic tank 5 and is sent into the oxygen storage tank 8 through the oxygen inlet 8-1 of the oxygen storage tank 8, and the oxygen stored in the oxygen storage tank 8 is introduced into the gas power plant 4 from the oxygen outlet 8-2 and the oxygen inlet 4-1 of the gas power plant 4 to supply oxygen for the gas combustion of the gas power plant 4; the hydrogen separated from the hydrogen outlet 5-4 of the electrolytic tank 5 is sent into the hydrogen storage tank 9 through the hydrogen inlet 9-1 of the hydrogen storage tank 9, and the hydrogen stored in the hydrogen storage tank 9 is introduced into the reaction device 2 through the hydrogen outlet 9-2 of the hydrogen storage tank 9 and the hydrogen inlet 2-2 of the reaction device 2.
The solution inlet 2-1 of the reaction device 2 is connected with the solution outlet 1-4 of the absorption tank 1, and receives methanol and carbon dioxide required by methyl formate generation; and connecting the solution outlet 2-3 of the reaction device 2 with the inlet 3-1 of the separation device 3 to separate methyl formate, water and methanol, discharging water from the first outlet 3-2 of the separation device 3 and connecting the water with the liquid inlet 5-2 of the electrolytic tank 5 to recover water generated by the reaction, discharging the finished methyl formate product discharged from the second outlet 3-3 of the separation device 3 into a connected methyl formate storage tank 7 to store, and connecting the third outlet 3-4 of the separation device 3 with the solution inlet 1-2 of the absorption tank 1 to recover the unreacted methanol solution.
Collecting pure methane through a gas outlet 1-3 of the absorption tank 1 and a raw material inlet 4-2 of a gas power plant 4; oxygen is fed into an oxygen storage tank 8 through an oxygen outlet 5-3 of the electrolytic tank 5, and then is fed into the gas power plant 4 from the storage tank 8 through an oxygen inlet 4-1 of the gas power plant 4 to work; and the system power generation W1 is larger than the electric energy W2 consumed by the electrolyzed water; and (3) recovering carbon dioxide discharged after methane is combusted, wherein a flue gas outlet 4-3 of the gas power plant 4 is connected with a gas inlet 1-1 of the absorption tank 1, so that carbon dioxide discharged by the power plant is eliminated.
While the present invention has been described in detail with reference to certain embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The device for preparing methyl formate and purifying natural gas by carbon capture in a gas power plant is characterized by comprising: the device comprises an absorption tank (1), a reaction device (2), a separation device (3), a gas power plant (4), an electrolytic tank (5), a pump (6), a methyl formate storage tank (7), an oxygen storage tank (8) and a hydrogen storage tank (9); the gas inlet (1-1) of the absorption tank (1) is connected with the gas outlet (4-3) of the gas power plant (4), the solution inlet (1-2) of the absorption tank (1) is connected with the third outlet (3-4) of the separation device (3), the gas outlet (1-3) of the absorption tank (1) is connected with the gas inlet (4-2) of the gas power plant (4), and the solution outlet (1-4) of the absorption tank (1) is connected with the solution inlet (2-1) of the reaction device (2) through a pump (6); the gas inlet (2-2) of the reaction device (2) is connected with the hydrogen outlet (9-2) of the hydrogen storage tank (9), the hydrogen inlet (9-1) of the hydrogen storage tank (9) is connected with the hydrogen outlet (5-4) of the electrolytic tank (5), and the solution outlet (2-3) of the reaction device (2) is connected with the solution inlet (3-1) of the separation device (3); an oxygen outlet (5-3) of the electrolytic tank (5) is connected with an oxygen inlet (8-1) of an oxygen storage tank (8), an oxygen outlet (8-2) of the oxygen storage tank (8) is connected with an oxygen inlet (4-1) of a gas power plant (4), a first outlet (3-2) of the separation device (3) is connected with a liquid inlet (5-2) of the electrolytic tank (5), a second outlet (3-3) of the separation device (3) is connected with a methyl formate storage tank (7), and a third outlet (3-4) of the separation device (3) is connected with a solution inlet of the absorption tank (1).
2. A method for preparing methyl formate and purifying natural gas by carbon capture in a gas power plant, which is applied to the device for preparing methyl formate and purifying natural gas by carbon capture in a gas power plant according to claim 1, and is characterized by comprising the following steps:
purifying natural gas: introducing natural gas containing carbon dioxide into a sealed absorption tank (1) filled with methanol solution through a gas inlet of the absorption tank (1), collecting pure methane from a gas outlet of the absorption tank (1), connecting the pure methane with a raw material inlet of a gas power plant, supplying the pure methane to the gas power plant (4) for generating electricity, generating electric energy W1, simultaneously recovering carbon dioxide discharged from a flue gas outlet of the gas power plant (4), reducing the temperature to 35-37 ℃ from 140-150 ℃, then entering the absorption tank (1) through the gas inlet of the absorption tank (1), and enabling the temperature of the carbon dioxide at the gas inlet of the absorption tank (1) to be 35-37 ℃ and the flue gas pressure to be 0.01Mpa;
preparation of H 2 : the electric energy provided by the photovoltaic power station and/or the wind power station is electrically connected with a power end of the electrolytic tank (5) after passing through the inverter to supply power for electrodes in the electrolytic water of the electrolytic tank (5), the electric energy W2 is consumed, and the ionized oxygen of the electrolytic tank (5) is introduced into the oxygen storage tank (8) to supply oxygen for the gas combustion of the gas power plant (4); introducing hydrogen prepared by ionization of the electrolytic tank (5) into a hydrogen storage tank (9), and supplying the hydrogen to the reaction device (2) to participate in capturing carbon dioxide;
CO capture 2 : the hydrogen storage tank (9) is used for introducing hydrogen into the reaction device (2), the absorption tank (1) is used for introducing a methanol solution containing carbon dioxide into the reaction device (2) through the pump (6), the hydrogen and the methanol solution containing carbon dioxide react in the reaction device (2) to capture carbon dioxide, and the generated water-containing methanol methyl formate is sentSeparating in a separating device (3) to obtain methyl formate product, and introducing incompletely reacted methanol into an absorption tank (1).
3. The method for preparing methyl formate and purifying natural gas by capturing carbon in a gas power plant according to claim 2, wherein the absorption tank (1) absorbs carbon dioxide contained in natural gas to purify the natural gas; and introducing the purified natural gas into a gas power plant (4) as fuel through a gas outlet to generate power; carbon dioxide exhausted by the recovery gas power plant (4) is introduced into the absorption tank (1), and the flow rate of the flue gas is controlled at 15-25 t/h.
4. The method for preparing methyl formate and purifying natural gas by capturing carbon in a gas power plant according to claim 2, wherein the separation device (3) is used for introducing the separated water into the electrolytic tank (5).
5. The method for preparing methyl formate and purifying natural gas by carbon capture in a gas power plant according to claim 2, wherein pure methane collected in the absorption tank (1) is fed into the gas power plant (4) as a raw material; the generating capacity of the gas power plant (4) is W1, and the system power generation W1 is larger than the electric energy W2 consumed by electrolyzed water; and (3) recovering carbon dioxide discharged after methane is combusted, wherein a flue gas outlet of the gas power plant (4) is connected with a gas inlet of the absorption tank (1), so that carbon dioxide discharged by the power plant is eliminated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110781416.1A CN113416131B (en) | 2021-07-11 | 2021-07-11 | Method and device for preparing methyl formate and purifying natural gas by carbon capture in gas power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110781416.1A CN113416131B (en) | 2021-07-11 | 2021-07-11 | Method and device for preparing methyl formate and purifying natural gas by carbon capture in gas power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113416131A CN113416131A (en) | 2021-09-21 |
| CN113416131B true CN113416131B (en) | 2023-09-22 |
Family
ID=77720734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110781416.1A Active CN113416131B (en) | 2021-07-11 | 2021-07-11 | Method and device for preparing methyl formate and purifying natural gas by carbon capture in gas power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113416131B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110574B (en) * | 2021-12-03 | 2024-04-05 | 上海源晗能源技术有限公司 | Nitrogen-insulated combustion and CO of gas boiler 2 Trapping and utilizing process |
| CN114522518A (en) * | 2022-01-26 | 2022-05-24 | 哈尔滨工业大学（深圳） | Carbon-containing recycling gas power plant low-cost carbon emission reduction system and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5724805A (en) * | 1995-08-21 | 1998-03-10 | University Of Massachusetts-Lowell | Power plant with carbon dioxide capture and zero pollutant emissions |
| CN101189204A (en) * | 2005-04-15 | 2008-05-28 | 南加利福尼亚大学 | Efficient and selective chemical recycling of carbon dioxide to methanol, dimethyl ether and derived products |
| WO2013081460A1 (en) * | 2011-11-29 | 2013-06-06 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Method for depleting an exhaust gas stream in gaseous acid |
| CN106831326A (en) * | 2016-12-22 | 2017-06-13 | 赛鼎工程有限公司 | A kind of comprehensive utilization process of coke-stove gas synthesizing methanol co-production liquefied natural gas |
| CN108579361A (en) * | 2018-05-09 | 2018-09-28 | 常州大学 | Carbon dioxide low energy consumption capturing device in a kind of power plants LNG tail gas |
| CN109306880A (en) * | 2018-11-15 | 2019-02-05 | 大连理工大学 | A kind of CO based on the recycling of power plant's internal energy2Compress and liquefy adjustable composite system |
| CN111302896A (en) * | 2020-03-16 | 2020-06-19 | 明阳智慧能源集团股份公司 | Renewable energy methanol synthesis system of thermal power plant |
-
2021
- 2021-07-11 CN CN202110781416.1A patent/CN113416131B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5724805A (en) * | 1995-08-21 | 1998-03-10 | University Of Massachusetts-Lowell | Power plant with carbon dioxide capture and zero pollutant emissions |
| CN101189204A (en) * | 2005-04-15 | 2008-05-28 | 南加利福尼亚大学 | Efficient and selective chemical recycling of carbon dioxide to methanol, dimethyl ether and derived products |
| WO2013081460A1 (en) * | 2011-11-29 | 2013-06-06 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Method for depleting an exhaust gas stream in gaseous acid |
| CN106831326A (en) * | 2016-12-22 | 2017-06-13 | 赛鼎工程有限公司 | A kind of comprehensive utilization process of coke-stove gas synthesizing methanol co-production liquefied natural gas |
| CN108579361A (en) * | 2018-05-09 | 2018-09-28 | 常州大学 | Carbon dioxide low energy consumption capturing device in a kind of power plants LNG tail gas |
| CN109306880A (en) * | 2018-11-15 | 2019-02-05 | 大连理工大学 | A kind of CO based on the recycling of power plant's internal energy2Compress and liquefy adjustable composite system |
| CN111302896A (en) * | 2020-03-16 | 2020-06-19 | 明阳智慧能源集团股份公司 | Renewable energy methanol synthesis system of thermal power plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113416131A (en) | 2021-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113416131B (en) | Method and device for preparing methyl formate and purifying natural gas by carbon capture in gas power plant | |
| CN108321416B (en) | CO 2 Near zero emission integrated coal gasification fuel cell power generation system and method | |
| US20070282021A1 (en) | Producing ethanol and saleable organic compounds using an environmental carbon dioxide reduction process | |
| CN109301283B (en) | With CO 2 Captured integrated gasification fuel cell system | |
| RU2007137645A (en) | SYSTEMS AND METHODS USING A FUEL PROCESSOR WITHOUT MIXING | |
| CN113350989A (en) | Carbon dioxide capture method and system for coal-fired power generation coupled with renewable energy power generation | |
| CN111547678B (en) | Method and system for preparing methanol by full-component thermal catalysis of marsh gas | |
| AU2019302589A1 (en) | Process and system for producing carbon monoxide and dihydrogen from a CO2-containing gas | |
| KR101771131B1 (en) | Integrated process system of biogas pre-treatment for high temperature fuel cell | |
| CN114522525A (en) | Integrated system and method for capturing and utilizing carbon dioxide in industrial tail gas treatment | |
| CN111575725B (en) | CO (carbon monoxide)2Method for preparing graphene through electrochemical conversion | |
| CN111591957B (en) | Coal bed gas combined cycle power generation and CO2Trapping system and method | |
| CN113224360A (en) | Method and system for producing hydrogen and generating power by co-gasification of coal and biomass | |
| CN210635950U (en) | Biogas preparation device combining biogas purification and carbon dioxide methanation | |
| CN114526158B (en) | Energy and substance conversion system and method based on carbon dioxide hydrogenation | |
| CN113594525A (en) | Energy storage, carbon sequestration and new energy recycling | |
| CN216712257U (en) | Coal fired power plant carbon capture coupling water electrolysis hydrogen production coproduction chemical industry strain system | |
| CN215404571U (en) | System for utilize flue gas electrochemistry of thermal power plant to make ammonia | |
| CN214830706U (en) | Natural gas reforming and carbon dioxide combined hydrogen production power generation system | |
| CN201402833Y (en) | Battery integration generating device based on natural-gas-prepared hydrogen and proton exchange membrane fuel | |
| CN212357095U (en) | Renewable energy methanol synthesis system of thermal power plant | |
| CN114314510A (en) | Methane reforming reaction system | |
| CN113816472A (en) | Photovoltaic-driven water decomposition hydrogen production coupling urea pollutant purification device | |
| CN112813454A (en) | Natural gas reforming and carbon dioxide combined hydrogen production power generation system and method | |
| CN111500333A (en) | Solid waste and alkali liquor circulating desulfurization and decarburization system and working method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |