CN220684688U - Coupling system for garbage incineration and methane hydrogen production - Google Patents
Coupling system for garbage incineration and methane hydrogen production Download PDFInfo
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- CN220684688U CN220684688U CN202322092423.8U CN202322092423U CN220684688U CN 220684688 U CN220684688 U CN 220684688U CN 202322092423 U CN202322092423 U CN 202322092423U CN 220684688 U CN220684688 U CN 220684688U
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- garbage
- methane
- steam
- hydrogen production
- flue
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 71
- 239000001257 hydrogen Substances 0.000 title claims abstract description 64
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 38
- 238000010168 coupling process Methods 0.000 title claims abstract description 17
- 230000008878 coupling Effects 0.000 title claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 58
- 238000000629 steam reforming Methods 0.000 claims abstract description 24
- 239000002918 waste heat Substances 0.000 claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 23
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003546 flue gas Substances 0.000 claims abstract description 9
- 238000006057 reforming reaction Methods 0.000 claims abstract description 9
- 238000002407 reforming Methods 0.000 claims abstract description 8
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 6
- 238000000746 purification Methods 0.000 claims description 11
- 238000006477 desulfuration reaction Methods 0.000 claims description 10
- 230000023556 desulfurization Effects 0.000 claims description 10
- 238000001179 sorption measurement Methods 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000003009 desulfurizing effect Effects 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 238000003795 desorption Methods 0.000 claims description 3
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 claims description 3
- 239000000149 chemical water pollutant Substances 0.000 claims description 2
- 238000004064 recycling Methods 0.000 abstract description 5
- 238000010248 power generation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 125000001741 organic sulfur group Chemical group 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
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- Processing Of Solid Wastes (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The utility model provides a coupling system for garbage incineration and methane hydrogen production, which comprises a garbage incinerator system and a methane hydrogen production system. The garbage incinerator system comprises a garbage incinerator and a waste heat boiler, wherein a second flue is arranged on the garbage incinerator, and the garbage incinerator system is used for incinerating garbage and providing heat. Methane hydrogen productionThe system is connected with the garbage incinerator system, the methane hydrogen production system comprises a steam reforming conversion device, the steam reforming conversion device comprises a plurality of U-shaped conversion pipes, the U-shaped conversion pipes are arranged at the top of a second flue of the garbage incinerator, and the steam reforming conversion device is used for reforming methane and steam to generate a gas containing CO 2 CO and H 2 The garbage incinerator provides high-temperature flue gas for reforming reaction of the steam reforming conversion device. The utility model saves the configuration of the traditional reformer, the steam generator and auxiliary equipment, saves the consumption of fossil energy, and realizes the high-valued and resource recycling of garbage biogas.
Description
Technical Field
The utility model relates to the technical field of garbage disposal, in particular to a coupling system for garbage incineration and methane hydrogen production.
Background
With the development of social economy and the acceleration of the urban process, the output of urban household garbage is gradually increased year by year, the urban household garbage in China is mainly treated by incineration power generation, and the main component of methane generated by anaerobic treatment of garbage percolate of garbage incineration plants is methane, and the component of the methane reaches more than 60 percent, so that the methane is suitable for being used as a raw material for preparing hydrogen. Meanwhile, because the biogas is derived from household garbage, the obtained hydrogen belongs to green hydrogen and is an ideal form for utilizing hydrogen energy.
In the prior art, the main flow of producing industrial hydrogen by taking methane as a raw material comprises four steps: pretreatment of raw material gas, steam reforming conversion, medium-temperature shift of carbon monoxide and hydrogen purification. The steam reforming conversion is a main core process, the principle is that methane and water react at the temperature of 800-900 ℃ under the condition of a nickel oxide catalyst to generate carbon monoxide and hydrogen, and the reaction formula is as follows: ch4+h 2 O→CO 2 +H 2 The reaction is an endothermic reaction, and the reaction process requires a large amount of heat from the outside.
The existing solution for providing heat is to configure an independent reforming reaction place and a steam reformer, and provide heat for the reforming reaction in the steam reformer by burning additional fuel such as natural gas, so that the fuel consumption is large, the cost is high, and the occupied area of the steam reformer is large, which is not beneficial to the hydrogen production reaction. Meanwhile, the garbage incineration plant generally directly sends garbage leachate biogas into a garbage incinerator for incineration, and the garbage leachate biogas is used as a supplementary heat source in a waste heat boiler, so that the energy recycling efficiency is low, and the energy waste is caused.
Accordingly, improvements are needed in the art.
Disclosure of Invention
In the prior art, in the methane hydrogen production reaction, extra fuel is combusted to provide heat for the conversion reaction in the steam reformer, the fuel consumption is large, the cost is high, the occupied area of the steam reformer is large, the hydrogen production reaction is not facilitated, meanwhile, garbage percolate methane is directly sent into the garbage incinerator for incineration in a garbage incineration plant, and the energy recycling efficiency is low, so that the energy waste is caused.
In order to achieve the above object, the present utility model provides a coupling system for garbage incineration and methane hydrogen production, comprising:
a waste incinerator system: the garbage incinerator comprises a garbage incinerator and a waste heat boiler, wherein a second flue is arranged on the garbage incinerator, and the garbage incinerator system is used for incinerating garbage and providing heat;
methane hydrogen production system: the methane hydrogen production system comprises a steam reforming conversion device, the steam reforming conversion device comprises a plurality of U-shaped conversion pipes, the U-shaped conversion pipes are arranged at the top of the second flue, and the steam reforming conversion device is used for reforming methane and steam to generate CO 2 CO and H 2 The garbage incinerator provides high-temperature flue gas for reforming reaction of the steam reforming conversion device.
In one implementation mode, the methane hydrogen production system further comprises an anaerobic methane tank, a methane desulfurization device, a waste heat recovery device, a medium temperature conversion device, a pressure swing adsorption hydrogen purification device and a temperature and pressure reduction device connected with the U-shaped conversion pipe, wherein the anaerobic methane tank, the methane desulfurization device, the waste heat recovery device, the medium temperature conversion device and the pressure swing adsorption hydrogen purification device are connected in sequence; the anaerobic biogas tank is used for storing biogas generated by anaerobic landfill leachate; the biogas desulfurization apparatus is used for desulfurizing the biogas to below 0.5 ppm; the temperature and pressure reducing device is used for reducing the temperature and pressure of steam extracted by a steam drum or a steam turbine of the garbage incineration plant to obtain saturated steam; the steam reforming conversion device is respectively connected with the methane desulfurization device and the temperature and pressure reduction device; the waste heat recovery device is used for cooling the converted gas; the medium temperature conversion device is used for converting the cooled converted gas into a reactionThe CO and the water vapor in the converted gas are converted into CO 2 And hydrogen to obtain a shift gas; the pressure swing adsorption hydrogen purification device is used for purifying hydrogen in the shift gas and generating a hydrogen containing CH 4 、CO、H 2 、CO 2 The desorption gas is conveyed to the garbage incinerator for incineration.
In one implementation, the U-shaped conversion tube is a high nichrome tube.
In one implementation mode, the garbage incinerator is further provided with a first flue connected with the second flue and a horizontal flue connected with the second flue, and the waste heat boiler is arranged in the horizontal flue.
The beneficial effects are that: according to the coupling system for garbage incineration and methane hydrogen production, the existing garbage incinerator system is connected with the hydrogen production system, the garbage incineration process and the methane hydrogen production process are coupled, waste incineration flue gas waste heat is utilized to provide heat for methane reforming and conversion, steam generated by garbage incineration provides reaction gas for methane reforming and conversion, the conventional reformer, the steam generator and auxiliary equipment are saved, the fossil energy consumption is saved, the anaerobic methane high-valued and recycling of garbage leachate are realized, meanwhile, the device layout of the system is compact, the operation is simple and easy to realize, the existing conditions of a garbage incineration power plant are fully utilized, the coupling of garbage power generation and hydrogen production is realized, and the quality of a garbage treatment final product is improved.
Drawings
Fig. 1 is a schematic structural diagram of a coupling system for garbage incineration and methane hydrogen production.
Wherein, 11, garbage incinerator; 111. a first flue; 112. a second flue; 113. a horizontal flue; 12. a waste heat boiler; 211. a U-shaped conversion tube; 22. an anaerobic biogas tank; 23. a methane desulfurizing device; 24. a waste heat recovery device; 25. a medium temperature conversion device; 26. a pressure swing adsorption hydrogen purification device; 27. a temperature and pressure reducing device.
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. Furthermore, the descriptions of the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., described below mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily for the same embodiment or example. The technical features of the respective embodiments of the present utility model may be combined with each other as long as they do not collide with each other.
The utility model provides a coupling system for garbage incineration and methane hydrogen production, which comprises a garbage incineration power generation system and a methane hydrogen production system, wherein the garbage incineration power generation system comprises a garbage incinerator 11 and a waste heat boiler 12, a second flue 112 is arranged on the garbage incinerator 11, and the garbage incinerator system is used for incinerating garbage and providing heat. The methane hydrogen production system is connected with the garbage incinerator system and comprises a steam reforming conversion device, the steam reforming conversion device comprises a plurality of U-shaped conversion pipes 211, the U-shaped conversion pipes 211 are arranged at the top of the second flue 112, and the steam reforming conversion device is used for reforming methane and steam to generate CO 2 CO and H 2 The garbage incinerator 11 supplies high temperature flue gas for reforming reaction of the steam reforming reformer.
The garbage incinerator 11 is further provided with a first flue 111 connected with the second flue 112, and a horizontal flue 113 connected with the second flue 112, and the waste heat boiler 12 is arranged in the horizontal flue 113. The garbage incinerator 11 is a boiler for recovering a heat value of garbage by incinerating garbage, and may be of a type of a mechanical grate furnace, a CFB garbage furnace, or the like. The garbage is fed from a feeding port of the garbage incinerator 11 and combusted in a hearth, the generated high-temperature flue gas exchanges heat with a heating surface of the waste heat boiler, heat is transferred to water on a working medium side, and the water absorbs the heat of the high-temperature flue gas in the waste heat boiler and then generates main steam with specific parameters for acting power generation. The waste heat boiler 12 is used for heating water or generating steam by waste heat generated in an industrial process, and can convert the waste heat into energy, so that energy waste in the industrial process is reduced, and environmental pollution and energy cost of enterprises are reduced.
Specifically, the methane hydrogen production system further comprises an anaerobic methane tank 22, a methane desulfurization device 23, a waste heat recovery device 24, a medium temperature conversion device 25, a pressure swing adsorption hydrogen purification device 26 and a temperature and pressure reduction device 27 connected with the U-shaped conversion tube 211.
The anaerobic biogas tank 22 is used for storing biogas generated by garbage leachate anaerobically, and the biogas desulfurization device 23 is used for desulfurizing the generated biogas, in particular, is used for desulfurizing hydrogen sulfide and organic sulfur of the biogas to below 0.5 ppm. The temperature and pressure reducing device 27 is used for reducing the temperature and pressure of steam extracted by a steam drum or a steam turbine of the garbage incineration plant to obtain saturated steam, and the saturated steam and the biogas enter the steam reforming conversion device according to a certain proportion. The steam reforming conversion device is respectively connected with the biogas desulfurization device 23 and the temperature and pressure reduction device 27, and the waste heat recovery device 24 is used for reducing the temperature of the converted gas to 340 ℃. The medium temperature conversion device 25 is used for converting the cooled converted gas into CO under the action of a catalyst, and converting CO and water vapor in the converted gas into CO 2 And hydrogen to obtain a shift gas. The pressure swing adsorption hydrogen purification device 26 is used for generating hydrogen products from the shift gas and contains CH 4 、CO、H 2 、CO 2 The desorption gas is conveyed to the garbage incinerator 11 for incineration.
Further, the U-shaped conversion tube 211 is a high-nickel-chromium alloy tube, a nickel-containing catalyst is arranged in the high-nickel-chromium alloy tube, the nickel-containing catalyst is used for catalyzing when the steam reforming conversion device performs reforming reaction, methane and steam perform reforming reaction to generate converted gas containing CO2, CO and H2, wherein heat required by the reforming reaction is provided by high-temperature flue gas of the second flue 112 in the garbage incinerator system. The number of the U-shaped conversion pipes 211 may be set according to the flow rate of the biogas.
The biogas hydrogen production system may further include a hydrogen storage tank (not shown) connected to the pressure swing adsorption hydrogen purification device for storing hydrogen pressurized and stored through the pressure swing adsorption hydrogen purification device 26, and a carbon capture device (not shown) for capturing CO in the shift gas 2 . Wherein the carbon capture device may be a CCUS device, CO separated by CCUS 2 Stored in CO 2 In the tank.
The utility model also provides a coupling method of the garbage incineration and the methane hydrogen production, which is realized by adopting the coupling system of the garbage incineration and the methane hydrogen production, wherein the garbage incineration power generation system burns garbage and provides heat, and the methane hydrogen production system carries out steam reforming conversion to produce hydrogen through the provided heat.
In summary, the coupling system and the method for producing hydrogen by using garbage incineration and methane, provided by the utility model, couple the garbage incineration process and the methane hydrogen production process by connecting the existing garbage incinerator system, utilize the waste heat of the garbage incineration flue gas to provide heat for methane reforming and converting, and utilize the steam generated by garbage incineration to provide reaction gas for methane reforming and converting, so that the configuration of a conventional reformer, a steam generator and auxiliary equipment is saved, the consumption of fossil energy is saved, the high-valued and recycling of anaerobic methane of garbage leachate is realized, and meanwhile, the device layout of the system provided by the utility model is compact, the operation is simple and easy to realize, the existing conditions of a garbage incineration power plant are fully utilized, the coupling of garbage power generation and hydrogen production is realized, and the quality of a garbage treatment final product is improved.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the utility model.
Claims (4)
1. A coupling system for refuse incineration and biogas hydrogen production, comprising:
a waste incinerator system: the garbage incinerator comprises a garbage incinerator and a waste heat boiler, wherein a second flue is arranged on the garbage incinerator, and the garbage incinerator system is used for incinerating garbage and providing heat;
methane hydrogen production system: the methane hydrogen production system comprises a steam reforming conversion device, the steam reforming conversion device comprises a plurality of U-shaped conversion pipes, the U-shaped conversion pipes are arranged at the top of the second flue, and the steam reforming conversion device is used for reforming methane and steam to generate CO 2 CO and H 2 The garbage incinerator provides high-temperature flue gas for reforming reaction of the steam reforming conversion device.
2. The coupling system for garbage incineration and methane hydrogen production according to claim 1, wherein the methane hydrogen production system further comprises an anaerobic methane tank, a methane desulfurization device, a waste heat recovery device, a medium temperature conversion device and a pressure swing adsorption hydrogen purification device which are connected in sequence, and a temperature and pressure reduction device connected with the U-shaped conversion pipe; the anaerobic biogas tank is used for storing biogas generated by anaerobic landfill leachate; the biogas desulfurization apparatus is used for desulfurizing the biogas to below 0.5 ppm; the temperature and pressure reducing device is used for reducing the temperature and pressure of steam extracted by a steam drum or a steam turbine of the garbage incineration plant to obtain saturated steam; the steam reforming conversion device is respectively connected with the methane desulfurization device and the temperature and pressure reduction device; the waste heat recovery device is used forCooling the converted gas; the medium temperature conversion device is used for carrying out conversion reaction on the cooled conversion gas to convert CO and water vapor in the conversion gas into CO 2 And hydrogen to obtain a shift gas; the pressure swing adsorption hydrogen purification device is used for purifying hydrogen in the shift gas to generate a gas containing CH 4 、CO、H 2 、CO 2 The desorption gas is conveyed to the garbage incinerator for incineration.
3. The coupling system for refuse incineration and biogas hydrogen production according to claim 1, wherein the U-shaped conversion tube is a high nickel chromium alloy tube.
4. The coupling system for garbage incineration and methane hydrogen production according to claim 2, wherein the garbage incinerator is further provided with a first flue connected with the second flue and a horizontal flue connected with the second flue, and the waste heat boiler is arranged in the horizontal flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322092423.8U CN220684688U (en) | 2023-08-04 | 2023-08-04 | Coupling system for garbage incineration and methane hydrogen production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322092423.8U CN220684688U (en) | 2023-08-04 | 2023-08-04 | Coupling system for garbage incineration and methane hydrogen production |
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| Publication Number | Publication Date |
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| CN220684688U true CN220684688U (en) | 2024-03-29 |
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| CN202322092423.8U Active CN220684688U (en) | 2023-08-04 | 2023-08-04 | Coupling system for garbage incineration and methane hydrogen production |
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| CN (1) | CN220684688U (en) |
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- 2023-08-04 CN CN202322092423.8U patent/CN220684688U/en active Active
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