Integrated system for preparing gasoline through hydrogenation catalysis of carbon dioxide

Abstract

The integrated system comprises an air compressor, an air high-pressure storage device, a carbon dioxide extraction and separation module, a carbon dioxide purification treatment module and a catalytic reaction device, the air compressor is connected with the air high-pressure storage device through a first pipeline, and the air high-pressure storage device is connected with the carbon dioxide extraction and separation module through a second pipeline; in conclusion, the invention designs an innovative system integrating an air compression energy storage technology and a carbon dioxide separation technology, and aims to improve the energy utilization efficiency; the integrated system not only realizes efficient storage, conversion and utilization of energy, but also shows excellent energy utilization efficiency due to the highly integrated design, and the comprehensive treatment mode provides a new thought for solving current environmental problems.

Description

Technical Field

[0001] The invention belongs to the technical field of new energy, and in particular relates to an integrated system for preparing gasoline by utilizing carbon dioxide hydrogenation catalysis. Background Art

[0003] With the continuous growth of global energy demand and the enhancement of environmental protection awareness, it is imperative to find efficient and clean energy storage and conversion technologies. Air compression energy storage technology is a potential energy storage method, but the use of compressed air in traditional technology is relatively single. At the same time, as a greenhouse gas, the effective capture and utilization of carbon dioxide is also a key research direction of current environmental protection technology. The technology of preparing gasoline by the reaction of carbon dioxide and hydrogen provides a new way for the resource utilization of carbon dioxide. However, most of these technologies currently exist independently and lack effective integration and optimization. Summary of the invention

[0005] The present invention aims to provide an integrated system for preparing gasoline by catalytic hydrogenation of carbon dioxide, so as to solve the technical problem that the existing gasoline preparation technology lacks effective integration and optimization.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: An integrated system for preparing gasoline by catalytic hydrogenation of carbon dioxide, comprising an air compressor, an air high-pressure storage device, a carbon dioxide extraction and separation module, a carbon dioxide purification and processing module, and a catalytic reaction device; The air compressor is connected to the air high-pressure storage device through a first pipeline, the air high-pressure storage device is connected to the carbon dioxide extraction and separation module through a second pipeline, the carbon dioxide extraction and separation module is connected to the carbon dioxide purification processing module through a third pipeline, and the carbon dioxide purification processing module is connected to the catalytic reaction device through a fourth pipeline. One-way valves are installed on the first pipeline, the second pipeline, the third pipeline and the fourth pipeline.

[0007] Furthermore, the integrated system for preparing gasoline by catalytic hydrogenation of carbon dioxide also includes an air high-pressure power generation device, which includes an expander and a generator. The air high-pressure storage device is connected to the expander through a fifth pipeline, and a one-way valve is provided on the fifth pipeline. The expander is connected to the generator through a coupling.

[0008] Furthermore, the integrated system for preparing gasoline by catalytic hydrogenation of carbon dioxide also includes a cooling system for dissipating heat from an air compressor.

[0009] Furthermore, the integrated system for preparing gasoline by catalytic hydrogenation of carbon dioxide also includes a waste heat recovery system, which is used to recover waste heat generated during the power generation process of the air high-voltage power generation device.

[0010] Furthermore, the air high-pressure storage device is provided with a pressure monitoring and regulating system, which is used to monitor the gas pressure in the air high-pressure storage device and regulate it to maintain it within a set range.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention designs an innovative system that integrates air compression energy storage technology and carbon dioxide separation technology, aiming to improve energy utilization efficiency; specifically, the present invention extracts carbon dioxide from compressed air to provide raw materials for subsequent resource utilization, and uses the extracted carbon dioxide to react with hydrogen to produce gasoline, opening up a new way for the resource utilization of carbon dioxide; the integrated system not only realizes the efficient storage, conversion and utilization of energy, but also exhibits excellent energy utilization efficiency due to its highly integrated design. This comprehensive treatment method provides a new idea for solving current environmental problems. In summary, the present invention provides a new technical path that realizes efficient management of energy and effective utilization of carbon dioxide by integrating a variety of advanced technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 The present invention is a schematic structural diagram of an integrated system for preparing gasoline by catalytic hydrogenation of carbon dioxide.

[0013] Figure 2 is the catalytic reaction formula of carbon dioxide and hydrogen. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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. 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.

[0016] The present invention is further described in detail below in conjunction with embodiments.

[0017] like Figure 1 As shown, a specific embodiment of an integrated system for preparing gasoline by catalytic hydrogenation of carbon dioxide provided by the present invention is as follows: An integrated system for preparing gasoline by catalytic hydrogenation of carbon dioxide, comprising an air compressor 1, an air high-pressure storage device 2, a carbon dioxide extraction and separation module 3, a carbon dioxide purification and processing module 4 and a catalytic reaction device 5; The air compressor 1 is connected to the air high-pressure storage device 2 through a first pipeline 6, the air high-pressure storage device 2 is connected to the carbon dioxide extraction and separation module 3 through a second pipeline 7, the carbon dioxide extraction and separation module 3 is connected to the carbon dioxide purification processing module 4 through a third pipeline 8, and the carbon dioxide purification processing module 4 is connected to the catalytic reaction device 5 through a fourth pipeline 9. A one-way valve 10 is installed on the first pipeline 6, the second pipeline 7, the third pipeline 8 and the fourth pipeline 9.

[0018] The above-mentioned air compressor 1 is driven by high-efficiency electric energy to suck in air from the environment and compress it to a high-pressure state. The air compressor 1 can use a reciprocating, screw or centrifugal structure, depending on the system requirements and scale. Preferably, a cooling system can also be set up to dissipate the heat generated during the compression process of the air compressor 1 to maintain the working efficiency and stability of the air compressor 1.

[0019] The air high-pressure storage device 2 is used to store compressed air, and may be an underground gas storage reservoir or a high-pressure gas storage tank, etc. The selected container must have good sealing and pressure resistance to ensure long-term safe storage. In addition, the air high-pressure storage device 2 may also be equipped with a pressure monitoring and regulating system, which is used to monitor the gas pressure in the air high-pressure storage device 2 and adjust it to maintain it within a set range.

[0020] The carbon dioxide extraction and separation module 3 is used to extract and separate carbon dioxide from compressed air. An adsorbent, an absorbent or a membrane separation device is arranged inside the module. The adsorbent and the absorbent need to be replaced regularly to ensure the separation efficiency.

[0021] The carbon dioxide purification processing module 4 is used to further purify the extracted carbon dioxide, mainly to remove impurities and moisture. Physical and chemical methods such as distillation, condensation, and filtration can be used to improve the purity of carbon dioxide. The purified carbon dioxide is transported to the catalytic reaction device 5 through the fourth pipeline 9.

[0022] The purified carbon dioxide and hydrogen are mixed in a certain ratio and then sent to the catalytic reaction device 5. The catalytic reaction device 5 is provided with a catalyst for promoting the catalytic reaction of carbon dioxide and hydrogen. The specific reaction conditions (such as temperature, pressure, catalyst type, etc.) need to be set according to the reaction requirements. The catalytic reaction formula is as follows: Figure 2 shown.

[0023] During the catalytic reaction, the one-way valve 10 is used to control the entry of reactants and the discharge of products. The pipeline is used to connect various modules and equipment to ensure the smooth flow of gas and liquid. The pipeline must have good sealing and corrosion resistance to prevent gas leakage and deterioration of reactants.

[0024] The gasoline generated by the reaction is collected and processed through a condensation and separation device. The gasoline can be used as internal combustion engine fuel or further utilized as a chemical raw material. The heat generated during the reaction can be used for heating systems or other auxiliary equipment through a waste heat recovery system to improve energy utilization efficiency.

[0025] As another embodiment of the present invention, a high-pressure air generator 11 may be provided. When the high-pressure air storage device 2 needs to release pressure, electric energy is generated by the high-pressure air generator 11 to improve energy utilization. The high-pressure air generator 11 includes an expander and a generator. The high-pressure air storage device 2 is connected to the expander through a fifth pipeline. A one-way valve 10 is provided on the fifth pipeline. The expander is connected to the generator through a coupling. The expander expands the high-pressure air to do work and drives the generator to generate electric energy. A waste heat recovery system may also be provided. The waste heat recovery system is used to recover waste heat generated during the power generation process of the high-pressure air generator 11.

[0026] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated system for preparing gasoline by catalytic hydrogenation of carbon dioxide, characterized in that: It includes an air compressor, an air high-pressure storage device, a carbon dioxide extraction and separation module, a carbon dioxide purification and processing module, and a catalytic reaction device; The air compressor is connected to the air high-pressure storage device through a first pipeline, the air high-pressure storage device is connected to the carbon dioxide extraction and separation module through a second pipeline, the carbon dioxide extraction and separation module is connected to the carbon dioxide purification processing module through a third pipeline, and the carbon dioxide purification processing module is connected to the catalytic reaction device through a fourth pipeline. One-way valves are installed on the first pipeline, the second pipeline, the third pipeline and the fourth pipeline.

2. An integrated system for preparing gasoline by catalytic hydrogenation of carbon dioxide according to claim 1, characterized in that: It also includes an air high-pressure power generation device, which includes an expander and a generator. The air high-pressure storage device is connected to the expander through a fifth pipeline, a one-way valve is provided on the fifth pipeline, and the expander is connected to the generator through a coupling.

3. An integrated system for preparing gasoline by catalytic hydrogenation of carbon dioxide according to claim 2, characterized in that: A cooling system is also included, which is used to dissipate heat from the air compressor.

4. An integrated system for preparing gasoline by catalytic hydrogenation of carbon dioxide according to claim 3, characterized in that: It also includes a waste heat recovery system, which is used to recover the waste heat generated during the power generation process of the air high-voltage power generation device.

5. An integrated system for preparing gasoline by catalytic hydrogenation of carbon dioxide according to claim 4, characterized in that: The air high-pressure storage device is provided with a pressure monitoring and regulating system, which is used to monitor the gas pressure in the air high-pressure storage device and regulate it to maintain it within a set range.

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