Thermoelectricity-hydrogen-methanol green co-production system and method

Abstract

The invention provides a thermoelectricity-hydrogen-methanol green co-production system and method. The system comprises an alkaline electrolytic cell module, a hydrogen separation and purification module, an oxygen separation module, a preheating module, a thermoelectric production module, a flue gas pretreatment module, a CO2 capture module and a CO2 hydrogenation methanol preparation module. CO2 capture is carried out on flue gas generated by coal-fired thermoelectricity, and resource utilization is carried out; meanwhile, hydrogen prepared by green electricity water electrolysis hydrogen production not only can be output and supplied, but also can be used for methanol preparation together with captured CO2, and prepared high-purity oxygen and part of flue gas subjected to flue gas pretreatment are supplied to a thermoelectric production module, so that oxygen-enriched combustion of coal is realized, the CO2 content in the flue gas can be greatly increased, CO2 capture is facilitated, and the energy consumption is reduced. Under the condition that thermoelectric supply is not affected, CO2 emission can be greatly reduced, hydrogen and methanol which are urgently needed by the market can be prepared, and meanwhile the whole process is green and environmentally friendly.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen and methanol co-production, and in particular to a system and method for green co-production of thermal power, hydrogen and methanol. Background Art

[0003] Hydrogen and methanol both have the characteristics of full combustion, clean pollution discharge, high quality and environmental protection, high efficiency and energy saving, etc. They are environmentally friendly alternative fuels, and green hydrogen and methanol are the future trend of energy. In particular, methanol has become one of the earliest new energy sources to be promoted because it is a liquid at room temperature, convenient for storage and transportation and refueling, and has good economic efficiency. At present, the performance of hydrogen and methanol in all aspects has become mature, the application chain is constantly expanding, and the market demand for hydrogen and methanol is also growing rapidly.

[0004] In view of the current status of CO2 emissions from coal-fired thermal power plants and the huge market demand for hydrogen and methanol, how to build a system and method for the cogeneration of thermal power, hydrogen and methanol, which can not only make resource utilization of the CO2 that is inevitably emitted by coal-fired thermal power plants, but also make full use of green electricity such as photovoltaic and wind power to electrolyze water to prepare hydrogen and oxygen, and also have the pure water required for preparing electrolyzed water, ultimately forming a reliable and effective thermal power, hydrogen and methanol cogeneration coupling system and method.

[0005] In view of this, the present invention proposes a system and method for green cogeneration of thermal power, hydrogen and methanol. Summary of the invention

[0006] According to the above-mentioned technical problem of low utilization rate of CO2 emitted by coal-fired thermal power plants, a system and method for green cogeneration of thermal power, hydrogen and methanol is provided. The present invention mainly captures CO2 from flue gas generated by coal-fired thermal power and utilizes it as a resource; at the same time, the hydrogen produced by electrolysis of water by green electricity can not only be supplied externally, but also used together with the captured CO2 to produce methanol. The prepared high-purity oxygen and part of the flue gas pretreated by flue gas are supplied to the thermal power production module, thereby realizing oxygen-enriched combustion of coal, which can greatly increase the CO2 content in the flue gas, is conducive to CO2 capture, and thus forms the cogeneration of thermal power, hydrogen and methanol.

[0007] The technical means adopted by the present invention are as follows:

[0008] In one aspect, the present invention provides a system for green cogeneration of thermal power, hydrogen and methanol, comprising:

[0009] The alkaline electrolyzer module is connected to the hydrogen separation and purification module and the oxygen separation module respectively, and is used to decompose the pure water inside the alkaline electrolyzer module into hydrogen and oxygen, and transmit the hydrogen to the hydrogen separation and purification module, and transmit the oxygen to the oxygen separation module;

[0010] The hydrogen separation and purification module is connected to the alkaline electrolyzer module and the CO2 hydrogenation to methanol module, respectively, and is used to purify the hydrogen and transmit the purified hydrogen to the CO2 hydrogenation to methanol module;

[0011] The oxygen separation module is connected to the alkaline electrolyzer module and the preheating module respectively, and is used to purify the oxygen and transmit the purified oxygen to the preheating module;

[0012] The preheating module is connected to the oxygen separation module, the thermoelectricity production module, and the flue gas pretreatment module, respectively, and is used to transmit the flue gas generated by the thermoelectricity production module to the flue gas pretreatment module, obtain the flue gas heat, and use the flue gas heat to preheat the purified oxygen and part of the flue gas pretreated by the flue gas pretreatment module and transmit them to the thermoelectricity production module;

[0013] The heat and power production module is connected to the preheating module and is used to generate heat and power for external supply, and utilizes part of the pretreated flue gas for oxygen-enriched combustion of coal to increase the CO2 concentration in the flue gas transmitted to the flue gas pretreatment module;

[0014] The flue gas pretreatment module is connected to the preheating module and the CO2 capture module respectively, and is used to pretreat the flue gas generated by the thermoelectric production module, transmit part of the pretreated flue gas to the preheating module, and transmit another part of the pretreated flue gas to the CO2 capture module;

[0015] The CO2 capture module is connected to the flue gas pretreatment module, the CO2 hydrogenation to methanol module, and the chimney, respectively, and is used to capture CO2 in the partially pretreated flue gas transmitted to the CO2 capture module and transmit it to the CO2 hydrogenation to methanol module, and transmit tail gas to the chimney;

[0016] The CO2 hydrogenation to methanol module is connected to the hydrogen separation and purification module and the CO2 capture module respectively, and is used to prepare methanol based on the captured CO2 and purified hydrogen.

[0017] Furthermore, it also includes:

[0018] an alkali solution filtering circulation module, connected to the hydrogen separation and purification module, the oxygen separation module, and the alkali solution cooling module, respectively, for filtering the alkali solution separated by the hydrogen separation and purification module and the oxygen separation module during purification, and transmitting the filtered alkali solution to the alkali solution cooling module;

[0019] The alkali solution cooling module is connected to the alkali solution filtering and circulating module and the alkaline electrolytic cell module respectively, and is used to cool the filtered alkali solution to the required temperature of the alkaline electrolytic cell module, and transmit the cooled alkali solution to the alkaline electrolytic cell module.

[0020] Furthermore, it also includes:

[0021] The pure water preparation and supply module is respectively connected to the thermoelectric production module, the hydrogen separation and purification module, and the oxygen separation module, and is used to prepare negative pressure pure water from the steam and hot water generated by the thermoelectric production module, and transmit the prepared pure water to the alkaline electrolyzer module through the hydrogen separation and purification module and the oxygen separation module.

[0022] Furthermore, it also includes:

[0023] a coal supply module, connected to the thermal power production module, for supplying coal to the thermal power production module;

[0024] A water supply module is connected to the thermoelectricity production module and is used to provide water to the thermoelectricity production module.

[0025] Furthermore, the oxygen separation module is connected to the preheating module via an oxygen buffer module, and the oxygen buffer module is used to stabilize the flow rate of the purified oxygen.

[0026] Furthermore, the hydrogen separation and purification module is connected to the CO2 hydrogenation to methanol module via a hydrogen compression storage module and a hydrogen pressure and flow regulating module;

[0027] One end of the hydrogen compression storage module is connected to the hydrogen separation and purification module, and the other end is connected to the hydrogen pressure and flow regulation module, so as to store the purified hydrogen, transmit it to the hydrogen pressure and flow regulation module and / or directly export the purified hydrogen;

[0028] The hydrogen pressure and flow regulating module is connected to the hydrogen compression storage module at one end and to the CO2 hydrogenation to methanol module at the other end, and is used to control the pressure and flow of the purified hydrogen delivered to the CO2 hydrogenation to methanol module.

[0029] Furthermore, the CO2 capture module is connected to the CO2 hydrogenation to methanol module via a CO2 storage module and a CO2 boosting module;

[0030] The CO2 storage module is connected to the CO2 capture module at one end and to the CO2 booster module at the other end, so as to stabilize the flow rate of the captured CO2;

[0031] The CO2 boosting module is connected to the CO2 storage module at one end and to the CO2 hydrogenation to methanol module at the other end, and is used to control the pressure and flow of the stabilized CO2 to the CO2 hydrogenation to methanol module.

[0032] Furthermore, it also includes:

[0033] The flow ratio control module is respectively connected to the CO2 hydrogenation to methanol module, the hydrogen pressure and flow regulation module, and the CO2 boosting module, and is used to obtain the hydrogen content and CO2 content in the CO2 hydrogenation to methanol module, regulate the hydrogen pressure and flow regulation module according to the hydrogen content, and regulate the CO2 boosting module according to the CO2 content.

[0034] On the other hand, the present invention also provides a method for green cogeneration of thermal power, hydrogen and methanol, using any of the above-mentioned systems for green cogeneration of thermal power, hydrogen and methanol, comprising:

[0035] The alkaline electrolyzer module decomposes the pure water inside it into hydrogen and oxygen, transmits the hydrogen to the hydrogen separation and purification module, and transmits the oxygen to the oxygen separation module;

[0036] The hydrogen separation and purification module transmits the purified hydrogen to the CO2 hydrogenation to methanol module;

[0037] The oxygen separation module transmits the purified oxygen to the preheating module;

[0038] The preheating module transmits the flue gas generated by the thermoelectric production module to the flue gas pretreatment module to obtain the flue gas heat, and uses the flue gas heat to preheat the purified oxygen and part of the flue gas pretreated by the flue gas pretreatment module and transmit them to the thermoelectric production module;

[0039] The thermal power production module generates thermal power for external supply, and utilizes part of the pretreated flue gas for oxygen-enriched combustion of coal to increase the CO2 concentration in the flue gas transmitted to the flue gas pretreatment module;

[0040] The flue gas pretreatment module pretreats the flue gas generated by the thermal power production module, transmits part of the pretreated flue gas to the preheating module, transmits part of the pretreated flue gas to the CO2 capture module, and discharges another part of the pretreated flue gas;

[0041] The CO2 capture module captures CO2 in the partially pretreated flue gas transmitted to the CO2 capture module and transmits it to the CO2 hydrogenation to methanol module;

[0042] The CO2 hydrogenation to methanol module produces methanol based on captured CO2 and purified hydrogen.

[0043] Compared with the prior art, the present invention has the following advantages:

[0044] 1. The system and method for green cogeneration of thermal power, hydrogen and methanol provided by the present invention capture CO2 from the flue gas generated by coal-fired thermal power and utilize it as a resource; at the same time, the hydrogen prepared by electrolyzing water to produce hydrogen can not only be supplied externally, but also be used to prepare methanol together with the captured CO2. The prepared high-purity oxygen and part of the flue gas pretreated by the flue gas are supplied to the thermal power production module, thereby realizing oxygen-enriched combustion of coal, which can greatly increase the CO2 content in the flue gas and is beneficial to CO2 capture, thereby forming the cogeneration of thermal power, hydrogen and methanol. Without affecting the supply of thermal power, it can not only greatly reduce CO2 emissions, but also prepare hydrogen and methanol urgently needed in the market, and the whole process is green and environmentally friendly.

[0045] 2. The system and method for green cogeneration of thermoelectricity, hydrogen and methanol provided by the present invention utilize steam and hot water from thermoelectric production modules to prepare negative pressure pure water, and can achieve self-sufficiency in water for alkaline electrolyzers, which is beneficial to green energy conservation and environmental protection.

[0046] 3. The system and method for green cogeneration of thermal power, hydrogen and methanol provided by the present invention is not only green and pollution-free in the preparation process of hydrogen and methanol, but also makes resource utilization of CO2 produced by coal combustion, and also utilizes green electricity to electrolyze water to prepare hydrogen and oxygen. The whole process of preparing hydrogen and methanol is green, environmentally friendly and pollution-free. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0048] Figure 1 A structural schematic diagram of the thermal power-hydrogen-methanol green cogeneration system provided by the present invention.

[0049] Figure 2 Another structural schematic diagram of the thermal power-hydrogen-methanol green cogeneration system provided by the present invention.

[0050] In the figure: 1. Thermal power-hydrogen-methanol green cogeneration system; 2. Alkaline electrolyzer module; 3. Hydrogen separation and purification module; 4. Hydrogen compression and storage module; 5. Oxygen separation module; 6. Alkaline solution filtration and circulation module; 7. Alkaline solution cooling module; 8. Oxygen buffer module; 9. Pure water preparation and supply module; 10. Preheating module; 11. Thermal power production module; 12. Coal supply module; 13. Water supply module; 14. Flue gas pretreatment module; 15. CO2 capture module; 16. CO2 storage module block; 17, CO2 booster module; 18, hydrogen pressure and flow control module; 19, flow ratio control module; 20, CO2 hydrogenation to methanol module; 21, alkaline electrolyzer; 31, hydrogen horizontal separator; 32, hydrogen washing cooling tower; 33, gas-liquid separator (hydrogen); 34, deoxygenation tower; 35, condenser; 36, drying tower; 37, liquid level difference transmitter; 38, regulating valve; 41, hydrogen buffer tank; 42, compressor; 43, hydrogen high-pressure gas storage cylinder; 51, oxygen horizontal separator; 52, oxygen washing cooling tower; 53, gas-liquid separator (oxygen); 54, regulating valve; 55, pressure transmitter; 61, alkali filter; 62, alkali circulation pump; 71, alkali cooler; 81, oxygen buffer tank; 82, pressure regulating valve; 91, negative pressure pure water preparation unit; 92, pure water storage tank; 93, pure water supply metering pump; 101, preheater; 102, flow regulating valve; 103, flue gas induced draft fan; 111, coal oxygen-enriched combustion boiler unit; 112, Dust collector; 113, steam turbine generator unit; 121, coal conveying unit; 131, fresh water conveying unit; 141, booster fan; 142, desulfurization tower; 143, condenser; 151, compressor; 152, buffer tank; 153, membrane reactor; 161, CO2 storage tank; 171, booster pump; 181, pressure reducing and flow regulating valve group; 191, flow ratio controller; 201, methanol synthesis tower; 202, methanol buffer tank; 203, methanol liquefaction compressor. DETAILED DESCRIPTION

[0051] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0054] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0055] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0056] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0057] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0058] Reference Figure 1 , Figure 1 A structural schematic diagram of a thermal power-hydrogen-methanol green cogeneration system provided by the present invention is provided to illustrate a specific embodiment of the thermal power-hydrogen-methanol green cogeneration system 1 provided by the present invention, including:

[0059] The alkaline electrolyzer module 2 is connected to the hydrogen separation and purification module 3 and the oxygen separation module 5, respectively, and is used to decompose the pure water inside it into hydrogen and oxygen, and transmit the hydrogen to the hydrogen separation and purification module 3, and transmit the oxygen to the oxygen separation module 5;

[0060] Specifically, the power interface of the alkaline electrolyzer module 2 is connected to green electricity such as photovoltaic / wind power, the hydrogen outlet of the alkaline electrolyzer module 2 is connected to the hydrogen separation and purification module 3, and the oxygen outlet of the alkaline electrolyzer module 2 is connected to the oxygen separation module 5. The pure water in the alkaline electrolyzer module 2 is decomposed into hydrogen and oxygen under the action of green electricity, the hydrogen and alkaline liquid enter the hydrogen separation and purification module 3, and the oxygen and alkaline liquid enter the oxygen separation module 5.

[0061] The hydrogen separation and purification module 3 is connected to the alkaline electrolyzer module 2 and the CO2 hydrogenation to methanol module 20, respectively, and is used to purify the hydrogen and transmit the purified hydrogen to the CO2 hydrogenation to methanol module 20;

[0062] Specifically, the hydrogen inlet of the hydrogen separation and purification module 3 is connected to the hydrogen outlet of the alkaline electrolyzer module 2. The hydrogen separation and purification module 3 performs gas-liquid separation, washing, cooling, deoxygenation, drying and other treatments on the hydrogen and alkali liquid entering the hydrogen separation and purification module 3 from the alkaline electrolyzer module 2 to remove the alkali liquid and other impurities contained in the hydrogen, and finally purify the hydrogen to 99.999%.

[0063] The oxygen separation module 5 is connected to the alkaline electrolyzer module 2 and the preheating module 10 respectively, and is used to purify the oxygen and transmit the purified oxygen to the preheating module 10;

[0064] Specifically, the oxygen inlet of the oxygen separation module 5 is connected to the oxygen outlet of the alkaline electrolyzer module 2. The oxygen separation module 5 performs gas-liquid separation, washing and cooling on the oxygen and alkaline solution entering the oxygen separation module 5 from the alkaline electrolyzer module 2, thereby obtaining high-purity oxygen.

[0065] The preheating module 10 is connected to the oxygen separation module 5, the thermoelectricity production module 11, and the flue gas pretreatment module 14, respectively, and is used to transmit the flue gas generated by the thermoelectricity production module 11 to the flue gas pretreatment module 14, obtain the flue gas heat, and use the flue gas heat to preheat the purified oxygen and part of the flue gas pretreated by the flue gas pretreatment module 14 and transmit them to the thermoelectricity production module 11;

[0066] Specifically, the oxygen outlet of the preheating module 10 is connected to the oxygen inlet of the thermoelectricity production module 11; the flue gas inlet of the preheating module 10 is connected to the flue gas outlet of the thermoelectricity production module 11; the flue gas outlet of the preheating module 10 is connected to the flue gas inlet of the flue gas pretreatment module 14; the pretreated flue gas inlet of the preheating module 10 is connected to the outlet of the flue gas pretreatment module 14; the pretreated flue gas outlet of the preheating module 10 is connected to the pretreated flue gas inlet of the thermoelectricity production module 11. The preheating module 10 uses the flue gas heat emitted by the oxygen-enriched combustion of coal in the thermoelectricity production module 11 to preheat the purified oxygen and part of the flue gas treated to meet the intake temperature requirement of the oxygen-enriched combustion module of coal.

[0067] The heat and power production module 11 is connected to the preheating module 10 and is used to generate heat and power for external supply, and utilizes part of the pretreated flue gas for oxygen-enriched combustion of coal to increase the CO2 concentration in the flue gas transmitted to the flue gas pretreatment module 14;

[0068] Specifically, the oxygen inlet of the thermoelectricity production module 11 is connected to the oxygen outlet of the preheating module 10; the pretreated flue gas inlet of the thermoelectricity production module 11 is connected to the pretreated flue gas outlet of the preheating module 10; the flue gas outlet of the thermoelectricity production module 11 is connected to the flue gas inlet of the preheating module 10; the heat and electricity generated by the thermoelectricity production module 11 is exported for supply, and the oxygen generated by the electrolysis of green electricity and part of the pretreated flue gas are mixed with oxygen-enriched combustion of coal to increase the CO2 concentration of the tail flue gas, thereby facilitating the capture of CO2 from the flue gas.

[0069] The flue gas pretreatment module 14 is connected to the preheating module 10 and the CO2 capture module 15 respectively, and is used to pretreat the flue gas generated by the thermal power generation module 11, transmit part of the pretreated flue gas to the preheating module 10, and transmit another part of the pretreated flue gas to the CO2 capture module 15;

[0070] Specifically, the flue gas inlet of the flue gas pretreatment module 14 is connected to the flue gas outlet of the preheating module 10; the flue gas outlet of the flue gas pretreatment module 14 is connected to the flue gas inlet of the CO2 capture module 15 and the pretreated flue gas inlet of the preheating module 10. The flue gas pretreatment module 14 desulfurizes and cools the flue gas, which is conducive to further CO2 capture.

[0071] The CO2 capture module 15 is connected to the flue gas pretreatment module 14, the CO2 hydrogenation to methanol module 20, and the chimney, respectively, and is used to capture CO2 in the partially pretreated flue gas transmitted to the CO2 capture module 15 and transmit it to the CO2 hydrogenation to methanol module 20, and transmit tail gas to the chimney;

[0072] Specifically, the flue gas inlet of the CO2 capture module 15 is connected to the flue gas outlet of the flue gas pretreatment module 14; the CO2 capture module 15 captures CO2 in the flue gas and supplies it to the CO2 hydrogenation to methanol module 20, and the excess tail gas is discharged to the chimney.

[0073] The CO2 hydrogenation to methanol module 20 is connected to the hydrogen separation and purification module 3 and the CO2 capture module 15 respectively, and is used to prepare methanol based on the captured CO2 and purified hydrogen.

[0074] In some optional embodiments, continue to refer to Figure 1 The thermal power-hydrogen-methanol green cogeneration system 1 provided in this embodiment also includes:

[0075] The alkali solution filtering and circulating module 6 is respectively connected to the hydrogen separation and purification module 3, the oxygen separation module 5, and the alkali solution cooling module 7, and is used to filter the alkali solution separated by the hydrogen separation and purification module 3 and the oxygen separation module 5 during purification, and transmit the filtered alkali solution to the alkali solution cooling module 7;

[0076] Specifically, the alkali liquid inlet of the alkali liquid filtering and circulating module 6 is connected to the alkali liquid main pipe formed by the alkali liquid outlet of the hydrogen separation and purification module 3 and the alkali liquid outlet of the oxygen separation module 5; the alkali liquid outlet of the alkali liquid filtering and circulating module 6 is connected to the alkali liquid cooling module 7. The alkali liquid filtering and circulating module 6 realizes the forced circulation of the alkali liquid in the alkaline electrolyzer module 2, the hydrogen separation and purification module 3, and the oxygen separation module 5, and can filter impurities in the alkali liquid.

[0077] The alkali solution cooling module 7 is connected to the alkali solution filtering and circulating module 6 and the alkaline electrolytic cell module 2 , respectively, and is used to cool the filtered alkali solution to a temperature required by the alkaline electrolytic cell module 2 , and transmit the cooled alkali solution to the alkaline electrolytic cell module 2 .

[0078] Specifically, the alkali liquid inlet of the alkali liquid cooling module 7 is connected to the alkali liquid outlet of the alkali liquid filtering circulation module 6; the alkali liquid outlet of the alkali liquid cooling module 7 is connected to the alkali liquid inlet of the alkali liquid electrolyzer module. In the forced circulation of the alkali liquid, the alkali liquid cooling module 7 cools the hot alkali liquid to meet the electrolysis temperature requirement of the alkaline electrolyzer module 2.

[0079] In some optional embodiments, continue to refer to Figure 1 The thermal power-hydrogen-methanol green cogeneration system 1 provided in this embodiment also includes:

[0080] The pure water preparation and supply module 9 is connected to the thermoelectric production module 11, the hydrogen separation and purification module 3, and the oxygen separation module 5, respectively, and is used to prepare negative pressure pure water from the steam and hot water generated by the thermoelectric production module 11, and transmit the prepared pure water to the alkaline electrolyzer module 2 through the hydrogen separation and purification module 3 and the oxygen separation module 5.

[0081] Specifically, the inlet of the pure water preparation and supply module 9 is connected to the steam and hot water outlet of the thermoelectric production module 11, and the pure water outlet of the pure water preparation and supply module 9 is connected to the pure water inlet of the hydrogen separation and purification module 3 and the oxygen separation module 5. The pure water preparation and supply module 9 prepares pure water based on steam and hot water, and the raw pure water for electrolysis is supplemented to the alkaline electrolyzer module 2 through the hydrogen separation and purification module 3 and the oxygen separation module 5.

[0082] In some optional embodiments, continue to refer to Figure 1 The thermal power-hydrogen-methanol green cogeneration system 1 provided in this embodiment also includes:

[0083] The coal supply module 12 is connected to the thermal power production module 11 and is used to provide coal to the thermal power production module 11;

[0084] The water supply module 13 is connected to the thermoelectricity production module 11 and is used to provide water to the thermoelectricity production module 11 .

[0085] Specifically, the coal supply module 12 and the water supply module 13 supply raw coal and water to the thermal power production module 11 for producing thermal power.

[0086] In some optional embodiments, continue to refer to Figure 1 The oxygen separation module 5 is connected to the preheating module 10 via the oxygen buffer module 8, and the oxygen buffer module 8 is used to stabilize the flow rate of the purified oxygen.

[0087] Specifically, the oxygen inlet of the oxygen buffer module 8 is connected to the oxygen outlet of the oxygen separation module 5; the oxygen outlet of the oxygen buffer module 8 is connected to the preheating module 10. The oxygen buffer module 8 is used to stabilize the flow rate of the purified oxygen so that the purified oxygen enters the preheating module 10 under a steady flow condition, thereby protecting the preheating module 10.

[0088] In some optional embodiments, continue to refer to Figure 1 , the hydrogen separation and purification module 3 is connected to the CO2 hydrogenation to methanol module 20 through the hydrogen compression storage module 4 and the hydrogen pressure and flow regulating module 18;

[0089] One end of the hydrogen compression storage module 4 is connected to the hydrogen separation and purification module 3, and the other end is connected to the hydrogen pressure and flow rate regulating module 18, and is used to store the purified hydrogen, transmit it to the hydrogen pressure and flow rate regulating module 18 and / or directly export the purified hydrogen;

[0090] Specifically, the hydrogen inlet of the hydrogen compression storage module 4 is connected to the hydrogen outlet of the hydrogen separation and purification module 3; the hydrogen outlet of the hydrogen compression storage module 4 is not only connected to the hydrogen inlet of the hydrogen pressure and flow control module 18, but also can directly supply hydrogen to the outside. The hydrogen compression storage module 4 compresses hydrogen into a high-pressure storage bottle for storage, thereby not only providing raw materials to the CO2 hydrogenation to methanol module 20, but also directly supplying hydrogen to the outside.

[0091] The hydrogen pressure and flow regulating module 18 is connected to the hydrogen compression storage module 4 at one end and to the CO2 hydrogenation to methanol module 20 at the other end, and is used to control the pressure and flow of the purified hydrogen delivered to the CO2 hydrogenation to methanol module 20.

[0092] Specifically, the hydrogen inlet of the hydrogen pressure and flow regulating module 18 is connected to the hydrogen outlet of the hydrogen compression storage module 4; the hydrogen outlet of the hydrogen pressure and flow regulating module 18 is connected to the inlet of the CO2 hydrogenation to methanol. The hydrogen pressure and flow regulating module 18 adjusts the hydrogen pressure and flow to meet the requirements of the CO2 hydrogenation to methanol module 20.

[0093] In some optional embodiments, continue to refer to Figure 1 , the CO2 capture module 15 is connected to the CO2 hydrogenation to methanol module 20 via the CO2 storage module 16 and the CO2 boosting module 17;

[0094] A CO2 storage module 16, one end of which is connected to the CO2 capture module 15 and the other end of which is connected to the CO2 booster module 17, for stabilizing the flow rate of the captured CO2;

[0095] Specifically, the inlet of the CO2 storage module 16 is connected to the CO2 outlet of the CO2 capture module 15 ; and the outlet of the CO2 storage module 16 is connected to the inlet of the CO2 boosting module 17 .

[0096] The CO2 boosting module 17 is connected to the CO2 storage module 16 at one end and to the CO2 hydrogenation to methanol module 20 at the other end, and is used to control the pressure and flow of the stabilized CO2 to the CO2 hydrogenation to methanol module 20.

[0097] Specifically, the inlet of the CO2 boosting module 17 is connected to the CO2 outlet of the CO2 storage module 16; the outlet of the CO2 boosting module 17 is connected to the CO2 inlet of the CO2 hydrogenation to methanol module 20; the CO2 boosting module 17 boosts the CO2 and supplies it to the CO2 hydrogenation to methanol module 20.

[0098] In some optional embodiments, continue to refer to Figure 1 The thermal power-hydrogen-methanol green cogeneration system 1 provided in this embodiment also includes:

[0099] The flow ratio control module 19 is respectively connected to the CO2 hydrogenation to methanol module 20, the hydrogen pressure and flow rate regulating module 18, and the CO2 boosting module 17, and is used to obtain the hydrogen content and CO2 content in the CO2 hydrogenation to methanol module 20, and to regulate the hydrogen pressure and flow rate regulating module 18 according to the hydrogen content, and to regulate the CO2 boosting module 17 according to the CO2 content.

[0100] Specifically, the flow ratio control module 19 receives the hydrogen and CO2 content of the CO2 hydrogenation to methanol module 20, and transmits the control signal to the hydrogen pressure, flow regulation module 18 and the CO2 boosting module 17 through calculation, so as to adjust the flow ratio of CO2 and hydrogen entering the CO2 hydrogenation to methanol module 20, which helps to improve the applicability of CO2 hydrogenation to methanol.

[0101] It can be understood that the pure water in the alkaline electrolyzer module 2 is decomposed into hydrogen and oxygen under the action of green electricity; the hydrogen outlet of the alkaline electrolyzer module 2 transports hydrogen and alkali liquid to the hydrogen separation and purification module 3 for gas-liquid separation, cooling, washing, purification, etc. to remove the alkali liquid and a small amount of water, and purify to a hydrogen content of 99.999%. Then the high-purity hydrogen is compressed and stored in the hydrogen compression module 4, which can be externally transported, or it can be used as a raw material and supplied to the CO2 hydrogenation to methanol module 20 after adjustment by the hydrogen pressure and flow regulation module 18. The oxygen outlet of the alkaline electrolyzer module 2 transports oxygen and alkali solution to the oxygen separation module 5 for gas-liquid separation, cooling and washing. The high-purity oxygen after removing the alkali solution is stabilized by the oxygen buffer module 8, enters the preheating module 10 for preheating, and then enters the thermoelectric production module 11; the flue gas generated by the thermoelectric production module 11 is cooled by the heat exchanger and enters the flue gas pretreatment module 14 for desulfurization and cooling. A part of the pretreated flue gas enters the preheating module 10 and enters the thermoelectric production module 11 after preheating, and together with the high-purity oxygen, realizes the oxygen-enriched combustion of the coal in the thermoelectric production module 11. Another part of the flue gas pretreated enters the CO2 capture module 15, the captured CO2 enters the CO2 storage module 16, and the other exhaust gas enters the chimney for discharge; the CO2 in the CO2 storage module 16 is pressurized by the CO2 boosting module 17 and enters the CO2 hydrogenation to methanol module as a raw material. 20, the prepared methanol can be exported; the flow ratio control module 19 is used to receive the hydrogen and CO2 content data signals of the CO2 hydrogenation to methanol module 20, and send the control to the hydrogen pressure, flow regulation module 18 and the CO2 boosting module 17, so as to control the flow of hydrogen and CO2 entering the CO2 hydrogenation to methanol module 20, so as to achieve the optimized ratio of CO2 hydrogenation to methanol; the alkali solution filtering and circulation module 6 extracts the alkali solution in the hydrogen separation and purification module 3 and the oxygen separation and cooling module, and after being cooled by the alkali solution cooling module 7, it is finally transported to the alkaline electrolyzer module 2 to complete the cooling and forced circulation of the alkali solution; the pure water preparation and supply module 9 uses the waste steam and waste hot water in the thermal power production module 11 to prepare negative pressure pure water, and supplies the prepared pure water as raw material to the hydrogen separation and purification module 3 and the oxygen separation module 5 to replenish the pure water raw material for the alkaline electrolyzer module 2.

[0102] In some optional embodiments, referring to Figure 2 , Figure 2 Another structural schematic diagram of the thermal power-hydrogen-methanol green cogeneration system 1 provided by the present invention is provided to illustrate another specific embodiment of the thermal power-hydrogen-methanol green cogeneration system 1 provided by the present invention, including:

[0103] The alkaline electrolyzer module 2 includes an alkaline electrolyzer 21 for producing hydrogen and oxygen by electrolyzing water using green electricity.

[0104] The hydrogen separation and purification module 3 is composed of a hydrogen horizontal separator 31, a hydrogen washing and cooling tower 32, a gas-liquid separator (hydrogen) 33, a deoxygenation tower 34, a condenser 35, a drying tower 36, a liquid level differential transmitter 37, and a regulating valve 38, which realizes the functions of gas-liquid separation, washing, cooling, deoxygenation, and drying of hydrogen and alkali liquid, and purifies hydrogen to a content of 99.999%; the liquid level differential transmitter 37 serving as the hydrogen horizontal separator 31 and the oxygen horizontal separator 51 is used to control the opening of the regulating valve 38, thereby maintaining the liquid level balance of the hydrogen horizontal separator 31 and the oxygen horizontal separator 51.

[0105] The hydrogen compression storage module 4 is composed of a hydrogen buffer tank 41, a compressor 42, and a hydrogen high-pressure gas storage cylinder 43, which are used to buffer the stable hydrogen flow rate, compress and pressurize, and store hydrogen; the hydrogen high-pressure gas storage cylinder 43 can supply hydrogen to the outside or to the methanol synthesis tower 201.

[0106] The oxygen separation module 5 is composed of an oxygen horizontal separator 51, an oxygen washing cooling tower 52, a gas-liquid separator (oxygen) 53, a regulating valve 54, and a pressure transmitter 55, which realizes the functions of gas-liquid separation, washing, cooling, etc. of oxygen and alkali liquid to obtain high-purity oxygen; the pressure transmitter 55 is a pressure transmitter of the oxygen horizontal separator 51, and is used to control the opening of the regulating valve 55 through pressure setting to achieve the stability of the system pressure at the set value.

[0107] The alkali solution filtering circulation module 6 is composed of an alkali solution filter 61 and an alkali solution circulation pump 62, which provides power for the circulation of the alkali solution and filters impurities.

[0108] The alkali solution cooling module 7 is mainly a alkali solution cooler 71 , which realizes alkali solution cooling to meet the alkali solution temperature requirement of the alkaline electrolytic cell 21 .

[0109] The oxygen buffer module 8 is composed of an oxygen buffer tank 81 and a pressure regulating valve 82, and is mainly used to stabilize the oxygen flow rate, maintain the rated pressure, and protect the preheater.

[0110] The pure water preparation and supply module 9 is composed of a negative pressure pure water preparation unit 91, a pure water storage tank 92, and a pure water supply metering pump 93. It mainly utilizes the waste steam and waste hot water generated by the steam turbine generator unit 113 to perform vacuum distillation to prepare pure water and store it, which can replenish pure water raw materials for the alkaline electrolytic cell 21.

[0111] The preheating module 10 is composed of a preheater 101, a flow regulating valve 102, and a flue gas induced draft fan 103. The preheater 101 mainly utilizes the flue gas heat generated by the coal-oxygen combustion boiler unit 111 to preheat oxygen and flue gas after flue gas treatment to improve energy utilization. The flue gas induced draft fan 103 is used to transport the flue gas generated by the coal-oxygen combustion boiler unit 111 to the preheater 101. The flow regulating valve 102 is used to control the flow of the flue gas after flue gas treatment entering the preheater 101.

[0112] The thermal power production module 11 is composed of a coal-oxygen combustion boiler unit 111, a dust collector 112, and a steam turbine generator unit 113. The coal-oxygen combustion boiler unit 111 realizes oxygen-enriched combustion of coal; the dust collector 112 performs dust removal on flue gas; and the steam turbine generator unit 113 realizes steam power generation.

[0113] The coal supply module 12 includes a coal conveying unit 121, which provides coal for the coal-oxygen combustion boiler unit 111;

[0114] The water supply module 13 includes a fresh water delivery unit 131 , which provides the coal-oxygen combustion boiler unit 111 with required fresh water.

[0115] The flue gas pretreatment module 14 is composed of a booster fan 141, a desulfurization tower 142, and a condenser 143; the booster fan 141 provides power for flue gas transportation; the desulfurization tower 142 and the condenser 143 desulfurize and cool the flue gas.

[0116] The CO2 capture module 15 is composed of a compressor 151, a buffer tank 152, and a membrane reactor 153; the compressor 151 compresses and pressurizes the flue gas, and after being stabilized by the buffer tank 152, it enters the membrane reactor 153 for CO2 capture and concentration to obtain high-purity CO2.

[0117] The CO 2 storage module 16 includes a CO 2 storage tank 161 , which is used to store captured high-purity CO 2 .

[0118] The CO 2 boosting module 17 includes a boosting pump 171 , which is used to boost the high-purity CO 2 and supply it to the methanol synthesis tower 201 according to the flow rate requirement of the methanol synthesis tower 201 .

[0119] The hydrogen pressure and flow regulating module 18 includes a pressure reducing and flow regulating valve group 181 . The pressure reducing and flow regulating valve group 181 is used to adjust the hydrogen supply pressure and flow according to the demand of the methanol synthesis tower 201 and supply the hydrogen to the methanol synthesis tower 201 .

[0120] The flow ratio control module 19 includes a flow ratio controller 191. The flow ratio controller 191 sends control signals to the boost pump 171 and the pressure reducing and flow regulating valve group 181 respectively according to the hydrogen and CO2 content data signals of the methanol synthesis tower 201, so as to control the flow of hydrogen and CO2 entering the methanol synthesis tower 201.

[0121] The CO2 hydrogenation to methanol module 20 consists of a methanol synthesis tower 201 and a methanol liquefaction compressor 203. The methanol synthesis tower 201 uses hydrogen prepared by alkaline water electrolysis and captures CO2 generated in the thermal power production process to synthesize methanol. The methanol synthesis tower 201 is used to stabilize the methanol flow rate, and the methanol liquefaction compressor 203 is used to liquefy methanol for easy external transmission.

[0122] Based on the same inventive concept, the present invention also provides a method for green cogeneration of thermal power, hydrogen and methanol, characterized in that an embodiment of the system 1 for green cogeneration of thermal power, hydrogen and methanol using any of the above items comprises:

[0123] The alkaline electrolyzer module 2 decomposes the pure water inside it into hydrogen and oxygen, transmits the hydrogen to the hydrogen separation and purification module 3, and transmits the oxygen to the oxygen separation module 5;

[0124] The hydrogen separation and purification module 3 transmits the purified hydrogen to the CO2 hydrogenation to methanol module 20;

[0125] The oxygen separation module 5 transmits the purified oxygen to the preheating module 10;

[0126] The preheating module 10 transmits the flue gas generated by the thermoelectricity production module 11 to the flue gas pretreatment module 14, obtains the flue gas heat, and uses the flue gas heat to preheat the purified oxygen and part of the flue gas pretreated by the flue gas pretreatment module 14 and transmits them to the thermoelectricity production module 11;

[0127] The heat and power production module 11 generates heat and power for external supply, and uses part of the pre-treated flue gas for oxygen-enriched combustion of coal to increase the CO2 concentration in the flue gas transmitted to the flue gas pre-treatment module 14;

[0128] The flue gas pretreatment module 14 pre-treats the flue gas generated by the thermal power generation module 11, transmits part of the pre-treated flue gas to the preheating module 10, transmits part of the pre-treated flue gas to the CO2 capture module 15, and discharges another part of the pre-treated flue gas;

[0129] The CO2 capture module 15 captures CO2 in the partially pretreated flue gas transmitted to the CO2 capture module 15 and transmits it to the CO2 hydrogenation to methanol module 20;

[0130] The CO2 hydrogenation to methanol module 20 produces methanol based on the captured CO2 and purified hydrogen.

[0131] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A green cogeneration system of thermal power, hydrogen and methanol, characterized in that: include: The alkaline electrolyzer module is connected to the hydrogen separation and purification module and the oxygen separation module respectively, and is used to decompose the pure water inside the alkaline electrolyzer module into hydrogen and oxygen, and transmit the hydrogen to the hydrogen separation and purification module, and transmit the oxygen to the oxygen separation module; The hydrogen separation and purification module is connected to the alkaline electrolyzer module and the CO2 hydrogenation to methanol module, respectively, and is used to purify the hydrogen and transmit the purified hydrogen to the CO2 hydrogenation to methanol module; The oxygen separation module is connected to the alkaline electrolyzer module and the preheating module respectively, and is used to purify the oxygen and transmit the purified oxygen to the preheating module; The preheating module is connected to the oxygen separation module, the thermoelectricity production module, and the flue gas pretreatment module, respectively, and is used to transmit the flue gas generated by the thermoelectricity production module to the flue gas pretreatment module, obtain the flue gas heat, and use the flue gas heat to preheat the purified oxygen and part of the flue gas pretreated by the flue gas pretreatment module and transmit them to the thermoelectricity production module; The heat and power production module is connected to the preheating module and is used to generate heat and power for external supply, and utilizes part of the pretreated flue gas for oxygen-enriched combustion of coal to increase the CO2 concentration in the flue gas transmitted to the flue gas pretreatment module; The flue gas pretreatment module is connected to the preheating module and the CO2 capture module respectively, and is used to pretreat the flue gas generated by the thermoelectric production module, transmit part of the pretreated flue gas to the preheating module, and transmit another part of the pretreated flue gas to the CO2 capture module; The CO2 capture module is connected to the flue gas pretreatment module, the CO2 hydrogenation to methanol module, and the chimney, respectively, and is used to capture CO2 in the partially pretreated flue gas transmitted to the CO2 capture module and transmit it to the CO2 hydrogenation to methanol module, and transmit tail gas to the chimney; The CO2 hydrogenation to methanol module is connected to the hydrogen separation and purification module and the CO2 capture module respectively, and is used to prepare methanol based on the captured CO2 and purified hydrogen.

2. The green cogeneration system of thermal power, hydrogen and methanol according to claim 1 is characterized in that: Also includes: an alkali solution filtering circulation module, connected to the hydrogen separation and purification module, the oxygen separation module, and the alkali solution cooling module, respectively, for filtering the alkali solution separated by the hydrogen separation and purification module and the oxygen separation module during purification, and transmitting the filtered alkali solution to the alkali solution cooling module; The alkali solution cooling module is connected to the alkali solution filtering and circulating module and the alkaline electrolytic cell module respectively, and is used to cool the filtered alkali solution to the required temperature of the alkaline electrolytic cell module, and transmit the cooled alkali solution to the alkaline electrolytic cell module.

3. The green cogeneration system of thermal power, hydrogen and methanol according to claim 1 or 2, characterized in that: Also includes: The pure water preparation and supply module is respectively connected to the thermoelectric production module, the hydrogen separation and purification module, and the oxygen separation module, and is used to prepare negative pressure pure water from the steam and hot water generated by the thermoelectric production module, and transmit the prepared pure water to the alkaline electrolyzer module through the hydrogen separation and purification module and the oxygen separation module.

4. The green cogeneration system of thermal power, hydrogen and methanol according to claim 1 or 2, characterized in that: Also includes: a coal supply module, connected to the thermal power production module, and used to supply coal to the thermal power production module; A water supply module is connected to the thermoelectricity production module and is used to provide water to the thermoelectricity production module.

5. The green cogeneration system of thermal power, hydrogen and methanol according to claim 1 or 2, characterized in that: The oxygen separation module is connected to the preheating module via an oxygen buffer module, and the oxygen buffer module is used to stabilize the flow rate of the purified oxygen.

6. The green cogeneration system of thermal power, hydrogen and methanol according to claim 1, characterized in that: The hydrogen separation and purification module is connected to the CO2 hydrogenation to methanol module through a hydrogen compression storage module and a hydrogen pressure and flow regulating module; One end of the hydrogen compression storage module is connected to the hydrogen separation and purification module, and the other end is connected to the hydrogen pressure and flow regulation module, so as to store the purified hydrogen, transmit it to the hydrogen pressure and flow regulation module and / or directly export the purified hydrogen; The hydrogen pressure and flow regulating module is connected to the hydrogen compression storage module at one end and to the CO2 hydrogenation to methanol module at the other end, and is used to control the pressure and flow of the purified hydrogen delivered to the CO2 hydrogenation to methanol module.

7. The green cogeneration system of thermal power, hydrogen and methanol according to claim 6, characterized in that: The CO2 capture module is connected to the CO2 hydrogenation to methanol module via a CO2 storage module and a CO2 pressurization module; The CO2 storage module is connected to the CO2 capture module at one end and to the CO2 booster module at the other end, so as to stabilize the flow rate of the captured CO2; The CO2 boosting module is connected to the CO2 storage module at one end and to the CO2 hydrogenation to methanol module at the other end, and is used to control the pressure and flow of the stabilized CO2 to the CO2 hydrogenation to methanol module.

8. The green cogeneration system of thermal power, hydrogen and methanol according to claim 7, characterized in that: Also includes: The flow ratio control module is respectively connected to the CO2 hydrogenation to methanol module, the hydrogen pressure and flow regulation module, and the CO2 boosting module, and is used to obtain the hydrogen content and CO2 content in the CO2 hydrogenation to methanol module, regulate the hydrogen pressure and flow regulation module according to the hydrogen content, and regulate the CO2 boosting module according to the CO2 content.

9. A method for green cogeneration of thermal power, hydrogen and methanol, characterized in that: A system for green cogeneration of thermal power, hydrogen and methanol according to any one of claims 1 to 8, comprising: The alkaline electrolyzer module decomposes the pure water inside it into hydrogen and oxygen, transmits the hydrogen to the hydrogen separation and purification module, and transmits the oxygen to the oxygen separation module; The hydrogen separation and purification module transmits the purified hydrogen to the CO2 hydrogenation to methanol module; The oxygen separation module transmits the purified oxygen to the preheating module; The preheating module transmits the flue gas generated by the thermoelectric production module to the flue gas pretreatment module to obtain the flue gas heat, and uses the flue gas heat to preheat the purified oxygen and part of the flue gas pretreated by the flue gas pretreatment module and transmit them to the thermoelectric production module; The thermal power production module generates thermal power for external supply, and utilizes part of the pretreated flue gas for oxygen-enriched combustion of coal to increase the CO2 concentration in the flue gas transmitted to the flue gas pretreatment module; The flue gas pretreatment module pretreats the flue gas generated by the thermal power production module, transmits part of the pretreated flue gas to the preheating module, transmits part of the pretreated flue gas to the CO2 capture module, and discharges another part of the pretreated flue gas; The CO2 capture module captures CO2 in the partially pretreated flue gas transmitted to the CO2 capture module and transmits it to the CO2 hydrogenation to methanol module; The CO2 hydrogenation to methanol module produces methanol based on captured CO2 and purified hydrogen.

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