CN216488170U - Natural gas power generation system with zero carbon emission - Google Patents
Natural gas power generation system with zero carbon emission Download PDFInfo
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- CN216488170U CN216488170U CN202122473522.1U CN202122473522U CN216488170U CN 216488170 U CN216488170 U CN 216488170U CN 202122473522 U CN202122473522 U CN 202122473522U CN 216488170 U CN216488170 U CN 216488170U
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Abstract
The utility model belongs to the technical field of natural gas power generation, and discloses a natural gas power generation system with zero carbon emission. A fuel supply unit for providing natural gas; the fuel power generation unit is connected with the fuel supply unit and comprises an electric energy output end, a heat output port and a discharge port, and the discharge port is used for discharging carbon dioxide, water and heat generated in the power generation process; the carbon dioxide conversion unit is connected with a discharge port of the fuel power generation unit and converts carbon dioxide and water discharged from the discharge port into semi-finished oil; and the separating device is used for separating the semi-finished oil into carbon dioxide and oil, and a carbon dioxide discharge port of the separating device is connected with the carbon dioxide conversion unit to provide carbon dioxide for the carbon dioxide conversion unit. The natural gas power generation system with zero carbon emission fully utilizes heat energy and carbon dioxide generated in the power generation process, and realizes zero emission of the carbon dioxide.
Description
Technical Field
The utility model relates to the technical field of natural gas power generation, in particular to a natural gas power generation system with zero carbon emission.
Background
The description of the background of the utility model pertaining to the related art to which this invention pertains is given for the purpose of illustration only and for the purpose of facilitating an understanding of the contents of the present invention, and should not be taken as an admission or admission that the applicant expressly considered or assumed that the applicant considered prior art to the filing date of the first filing date of the present application.
With the increasing requirements of people on environmental protection and energy conservation, the exhaust emission regulations are becoming stricter. In the operation process of the power generation system, a large amount of heat is generated by the power generation system, and a large amount of high-temperature tail gas is discharged to the outside, so that the environment is seriously polluted. Since the heat loss of the power generation system is large. How to recycle and utilize the carbon dioxide gas discharged by the power generation system is a great technical problem to be solved in the field of natural gas power generation.
In recent years, natural gas as a clean energy source is being developed and used on a large scale, and natural gas engines are coming out of the market. At present, the natural gas engine is still in the initial stage of development, and related supporting facilities are still in the process of development. Therefore, the characteristics of self cleanness of the natural gas engine are fully exerted, and the high-temperature energy dissipated by the exhaust waste heat of the natural gas engine is recycled, so that the whole natural gas engine achieves the purpose of high efficiency and energy conservation, and the natural gas engine is a current subject in the field of natural gas engine research and development.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model aims to provide a natural gas power generation system with zero carbon emission, which fully utilizes heat energy and carbon dioxide generated in the power generation process and realizes zero emission of the carbon dioxide.
The purpose of the novel embodiment is realized by the following technical scheme:
a zero carbon emission natural gas power generation system, comprising:
a fuel supply unit for providing natural gas;
the fuel power generation unit is connected with the fuel supply unit and comprises an electric energy output end, a heat output end and a discharge port, and the discharge port is used for discharging carbon dioxide, water and heat generated in the power generation process;
the carbon dioxide conversion unit is connected with a discharge port of the fuel power generation unit and converts carbon dioxide and water discharged from the discharge port into semi-finished oil;
the separating device is used for separating the semi-finished oil into carbon dioxide and oil, and a carbon dioxide discharge port of the separating device is connected with the carbon dioxide conversion unit and provides carbon dioxide for the carbon dioxide conversion unit.
Furthermore, the carbon dioxide conversion unit is connected with a heat supply device to provide heat energy for the carbon dioxide conversion unit.
Furthermore, the heat supply device is a solar heat collection device.
Furthermore, the electric energy output end is connected with an electric energy storage device.
Furthermore, the solar heat collection device comprises a cavity surrounded by glass plates and a heat collection tube, the heat collection tube comprises a heat collection section and a heat release section, the heat collection section is positioned in the cavity, and the heat release section is positioned outside the cavity; the heat collecting pipe is a copper pipe, and the heat release section is connected with the carbon dioxide conversion unit to provide heat energy for the carbon dioxide conversion unit.
Further, the fuel power generation unit comprises an SOFC cell stack, the fuel supply unit is connected with an anode of the SOFC cell stack, and a cathode of the SOFC cell stack is connected with air.
Further, the carbon dioxide conversion unit comprises: reaction ofA tube and a heater; the reaction tube is used for filling a catalyst, and the main components of the catalyst are one or more metals/metal oxides of manganese, cobalt, nickel and the like; the input end of the reaction tube is connected with the discharge port of the fuel power generation unit, and the output end of the reaction tube is connected with the separation device; CO emitted from fuel power generation unit2And H2The O enters the reaction tube from the input end of the reaction tube and reacts under the action of catalyst and heat, the reaction product comprises paraffin such as gasoline, diesel oil and the like, the product can be adjusted into methane and ethylene along with the adjustment of the catalyst, and the reaction product leaves the reaction tube through the output end; the heater is connected with the solar heat collection device and provides heat energy for carbon dioxide conversion.
Further, the separation device is a gravity type gas-liquid separator.
By the scheme, the utility model at least has the following beneficial effects:
the power generation system of the utility model connects the fuel supply unit with the fuel power generation unit, and the fuel supplied by the fuel supply unit is natural gas; the output end of the fuel power generation unit is connected with the power utilization end; CO2 discharged by the fuel power generation unit and heat released by reaction are connected with the CO2 conversion unit; the carbon dioxide conversion unit is used for converting carbon dioxide into oil products for other users to use. The zero emission of carbon dioxide in the natural gas power generation process can be realized without trapping, and the carbon cycle is realized by preparing green oil products. Realizing zero emission of carbon dioxide.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly described as follows:
FIG. 1 is a schematic diagram of a system configuration of an embodiment of a zero-carbon-emission natural gas power generation system according to the present invention;
fig. 2 is a schematic structural diagram of a solar heat collection device in an embodiment of a zero-carbon-emission natural gas power generation system of the present invention.
Detailed Description
The present invention is further described in detail with reference to the following examples, which should be understood as the technical solutions of the present invention are more easily understood by those skilled in the art, and should not be construed as limiting the scope of the present invention.
In the following description, the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance. The following description provides embodiments of the utility model, which may be combined with or substituted for various embodiments, and the utility model is thus to be construed as embracing all possible combinations of the same and/or different embodiments described. Thus, if one embodiment includes feature A, B, C and another embodiment includes feature B, D, then the utility model should also be construed as including embodiments that include A, B, C, D in all other possible combinations, even though such embodiments may not be explicitly recited in the following text.
With reference to fig. 1 and 2, a zero-carbon-emission natural gas power generation system includes:
a fuel supply unit 1 for supplying natural gas;
the fuel power generation unit 2 is connected with the fuel supply unit 1, the fuel power generation unit 2 comprises an electric energy output end, a heat output end and a discharge port, and the discharge port is used for discharging carbon dioxide 4, water 5 and heat 6 generated in the power generation process;
a carbon dioxide conversion unit 8, wherein the carbon dioxide conversion unit 8 is connected with a discharge port of the fuel power generation unit, and converts carbon dioxide 4 and water 5 discharged from the discharge port into semi-finished oil 9;
the separation device 10 is used for separating the semi-finished oil 9 into carbon dioxide 12 and oil products 11, and a carbon dioxide discharge port of the separation device 10 is connected with the carbon dioxide conversion unit 8 and provides carbon dioxide for the carbon dioxide conversion unit 8.
Connecting a fuel supply unit with a fuel power generation unit, wherein the fuel supplied by the fuel supply unit is natural gas; the output end of the fuel power generation unit is connected with the power utilization end; CO2 discharged by the fuel power generation unit and heat released by reaction are connected with the CO2 conversion unit; the carbon dioxide conversion unit is used for converting carbon dioxide into oil products for other users to use. The zero emission of carbon dioxide in the natural gas power generation process can be realized without trapping, and the carbon cycle is realized by preparing green oil products. Realizing zero emission of carbon dioxide.
In some embodiments of the present invention, the carbon dioxide conversion unit 8 is connected to a heat supply device for providing heat energy for the carbon dioxide conversion unit 8. Due to CO2The heat required by conversion is more than the waste heat released in the power generation process, so that a solar heat collecting device is added to supplement the heat required in the conversion process.
In some embodiments of the present invention, the heat supply device is a solar heat collection device 13.
Here, it is to be noted that: the solar heat collection device 13 is a preferred device in the heat supply device, and the utility model is not limited to which device is adopted for supplying heat, and the heat collection device can also be in an electric heating mode and the like.
In some embodiments of the utility model, the electrical energy output is connected to an electrical storage device 7.
The electric energy output end can adopt the electricity storage device to store electricity, can also be directly connected to a user, certainly can be connected to the user at one side and is connected to the electricity storage device at the other side, when the user power consumption is little, the electric energy is stored, and when the power consumption is big, the electric energy in the electricity storage device is released.
In some embodiments of the present invention, the solar heat collecting device 13 includes a cavity surrounded by a glass plate and a heat collecting tube, the heat collecting tube includes a heat collecting section 15 and a heat releasing section 14, the heat collecting section 15 is located inside the cavity, and the heat releasing section 14 is located outside the cavity; the heat collecting pipe is a copper pipe, and the heat releasing section 14 is connected with the carbon dioxide conversion unit 8 to provide heat energy for the carbon dioxide conversion unit. The solar heat collecting device adopting any structure is not limited in the application, and the device of the embodiment is simple in structure and low in cost. The heat collecting tube is not necessarily made of copper, and other materials with good heat conduction and low cost can be selected.
In some embodiments of the utility model, the fuel generation unit comprises a SOFC cell stack, the fuel supply unit is connected to an anode of the SOFC cell stack, and a cathode of the SOFC cell stack is connected to air.
In some embodiments of the utility model, the carbon dioxide conversion unit comprises: a reaction tube and a heater; the reaction tube is used for filling a catalyst, and the main components of the catalyst are one or more metals/metal oxides of manganese, cobalt, nickel and the like; the input end of the reaction tube is connected with the discharge port of the fuel power generation unit, and the output end of the reaction tube is connected with the separation device; CO emitted from fuel power generation unit2And H2The O enters the reaction tube from the input end of the reaction tube and reacts under the action of catalyst and heat, the reaction product comprises paraffin such as gasoline, diesel oil and the like, the product can be adjusted into methane and ethylene along with the adjustment of the catalyst, and the reaction product leaves the reaction tube through the output end; the heater is connected with the solar heat collection device and provides heat energy for carbon dioxide conversion.
In some embodiments of the utility model, the separation device is a gravity gas-liquid separator.
By the scheme, the utility model at least has the following beneficial effects:
the novel power generation system is used for connecting the fuel supply unit with the fuel power generation unit, and the fuel supplied by the fuel supply unit is natural gas; the output end of the fuel power generation unit is connected with the power utilization end; CO2 discharged by the fuel power generation unit and heat released by reaction are connected with the CO2 conversion unit; the carbon dioxide conversion unit is used for converting carbon dioxide into oil products for other users to use. The zero emission of carbon dioxide in the natural gas power generation process can be realized without trapping, and the carbon cycle is realized by preparing green oil products. Realizing zero emission of carbon dioxide.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A zero carbon emission natural gas power generation system, comprising:
a fuel supply unit for providing natural gas;
the fuel power generation unit is connected with the fuel supply unit and comprises an electric energy output end, a heat output end and a discharge port, and the discharge port is used for discharging carbon dioxide, water and heat generated in the power generation process;
the carbon dioxide conversion unit is connected with a discharge port of the fuel power generation unit and converts carbon dioxide and water discharged from the discharge port into semi-finished oil;
the separating device is used for separating the semi-finished oil into carbon dioxide and oil, and a carbon dioxide discharge port of the separating device is connected with the carbon dioxide conversion unit and provides carbon dioxide for the carbon dioxide conversion unit.
2. The zero-carbon-emission natural gas power generation system according to claim 1, wherein a heating device is connected to the carbon dioxide conversion unit to provide heat energy to the carbon dioxide conversion unit.
3. The zero-carbon-emission natural gas power generation system according to claim 2, wherein the heat supply device is a solar heat collection device.
4. The zero-carbon-emission natural gas power generation system according to claim 1, wherein the electric energy output terminal is connected to an electric storage device.
5. The natural gas power generation system with zero carbon emission of claim 3, wherein the solar heat collection device comprises a cavity surrounded by glass plates and a heat collection tube, the heat collection tube comprises a heat collection section and a heat release section, the heat collection section is located inside the cavity, and the heat release section is located outside the cavity; the heat collecting pipe is a copper pipe, and the heat release section is connected with the carbon dioxide conversion unit to provide heat energy for the carbon dioxide conversion unit.
6. The zero-carbon-emission natural gas power generation system according to claim 1, wherein the fuel power generation unit comprises a SOFC cell stack, the fuel supply unit is connected to an anode of the SOFC cell stack, and a cathode of the SOFC cell stack is connected to air.
7. The zero-carbon-emission natural gas power generation system according to claim 1, wherein the carbon dioxide conversion unit comprises: a reaction tube and a heater; the reaction tube is used for filling a catalyst, the input end of the reaction tube is connected with the discharge port of the fuel power generation unit, and the output end of the reaction tube is connected with the separation device; the heater is connected with the solar heat collection device and provides heat energy for carbon dioxide conversion.
8. The zero-carbon-emission natural gas power generation system according to claim 1, wherein the separation device is a gravity gas-liquid separator.
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| CN202122473522.1U CN216488170U (en) | 2021-10-14 | 2021-10-14 | Natural gas power generation system with zero carbon emission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114976161A (en) * | 2022-07-15 | 2022-08-30 | 北京市燃气集团有限责任公司 | Energy supply method with zero carbon emission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114976161A (en) * | 2022-07-15 | 2022-08-30 | 北京市燃气集团有限责任公司 | Energy supply method with zero carbon emission |
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