CN115159455A - Methanol hydrogen production device - Google Patents
Methanol hydrogen production device Download PDFInfo
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- CN115159455A CN115159455A CN202210910666.5A CN202210910666A CN115159455A CN 115159455 A CN115159455 A CN 115159455A CN 202210910666 A CN202210910666 A CN 202210910666A CN 115159455 A CN115159455 A CN 115159455A
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 279
- 239000001257 hydrogen Substances 0.000 title claims abstract description 65
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 65
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 103
- 238000002407 reforming Methods 0.000 claims abstract description 87
- 238000002156 mixing Methods 0.000 claims abstract description 64
- 238000000746 purification Methods 0.000 claims abstract description 52
- 239000007789 gas Substances 0.000 claims abstract description 44
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 238000007664 blowing Methods 0.000 claims abstract description 7
- 238000006057 reforming reaction Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 58
- 239000003054 catalyst Substances 0.000 claims description 18
- 238000005485 electric heating Methods 0.000 claims description 16
- 239000012295 chemical reaction liquid Substances 0.000 claims description 15
- 230000003197 catalytic effect Effects 0.000 claims description 11
- 239000007769 metal material Substances 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/323—Catalytic reaction of gaseous or liquid organic compounds other than hydrocarbons with gasifying agents
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
- C01B3/52—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with liquids; Regeneration of used liquids
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
- C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
- C01B2203/0233—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a steam reforming step
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0415—Purification by absorption in liquids
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
- C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
- C01B2203/0838—Methods of heating the process for making hydrogen or synthesis gas by heat exchange with exothermic reactions, other than by combustion of fuel
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
- C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
- C01B2203/085—Methods of heating the process for making hydrogen or synthesis gas by electric heating
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/10—Catalysts for performing the hydrogen forming reactions
- C01B2203/1005—Arrangement or shape of catalyst
- C01B2203/1029—Catalysts in the form of a foam
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/12—Feeding the process for making hydrogen or synthesis gas
- C01B2203/1205—Composition of the feed
- C01B2203/1211—Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
- C01B2203/1217—Alcohols
- C01B2203/1223—Methanol
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- Combustion & Propulsion (AREA)
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- General Health & Medical Sciences (AREA)
- Hydrogen, Water And Hydrids (AREA)
Abstract
The application provides a methanol hydrogen production device, which comprises a reforming module, a first heat conduction chamber and a second heat conduction chamber, wherein the reforming module is provided with a reforming chamber and the first heat conduction chamber for heating the reforming chamber; the purification module is provided with a purification chamber communicated with the reforming chamber and a second heat conduction chamber used for heating the purification chamber, and is used for purifying the hydrogen-rich gas after the reforming reaction to obtain pure hydrogen; the heating module comprises an air supply device, a mixing chamber, a catalytic reaction module and a heat release chamber; the air supply device is used for blowing the mixture in the mixing chamber into the catalytic reaction module for catalyzing and releasing heat; the heat release chamber is arranged on one side of the catalytic reaction module, which is far away from the mixing chamber, and is communicated with the first heat conduction chamber and the second heat conduction chamber; the reforming module, the purification module and the heating module are detachably connected. The methanol hydrogen production device is small in size, high in modularization degree, low in energy consumption and stable in heat release, and therefore hydrogen production efficiency can be greatly improved.
Description
Technical Field
The application belongs to the technical field of hydrogen production from methanol, and particularly relates to a hydrogen production device from methanol.
Background
With the popularization and development of new energy technology, the development of hydrogen fuel cells is more and more perfect, and the methanol hydrogen production technology related to the hydrogen fuel cells is mature day by day.
In the process of preparing hydrogen from methanol, high-temperature reforming of methanol is the most critical step in the whole hydrogen preparation process, and the step needs a stable high-temperature environment to ensure that the methanol can stably and fully react with a catalyst, thereby generating a hydrogen-rich gas.
In the related art, in order to create a high-temperature hydrogen production environment, a reforming chamber in a methanol hydrogen production device is heated by combustion heating or by electric heating.
In a combustion heating mode, a heat source is concentrated, and each part of the reforming chamber cannot be uniformly heated; meanwhile, in the hydrogen production process, the condition of fire source extinguishment further causes uneven heating and influences the hydrogen production purity; in addition, combustion apparatus generally sets up with reforming apparatus integration, and the equipment integration degree is higher, and the modularization degree is lower, leads to methanol hydrogen production equipment dismouting inconvenient, and it is difficult to maintain.
In the electric heating mode, compared with combustion heating, the device is small in size and easy to realize modular design, but due to the fact that continuous heating is needed, energy consumption is high, the requirement for stability of output power of electric power equipment is high, and when the electric quantity of a battery is reduced, power is inevitably reduced, so that heating is uneven.
Disclosure of Invention
An object of the embodiment of the application is to provide a methanol hydrogen production device, so as to solve the technical problems of uneven heating, higher heating energy consumption and low modularization degree in the methanol reforming hydrogen production process in the prior art.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: provided is a methanol hydrogen production apparatus comprising:
a reforming module provided with a reforming chamber and a first heat conduction chamber for heating the reforming chamber;
the purification module is provided with a purification chamber communicated with the reforming chamber and a second heat conduction chamber used for heating the purification chamber, and is used for purifying the hydrogen-rich gas after reforming reaction to obtain pure hydrogen;
the heating module comprises an air supply device, a mixing chamber, a catalytic reaction module and a heat release chamber; the air supply device is used for blowing the mixture in the mixing chamber into the catalytic reaction module to perform catalytic heat release; the heat release chamber is arranged on one side of the catalytic reaction module, which is far away from the mixing chamber, and is communicated with the first heat conduction chamber and the second heat conduction chamber;
the reforming module, the purification module and the heating module are detachably connected.
Optionally, the reforming module and the purification module are both made of metal materials, and the reforming module and the purification module are arranged in an abutting manner; the first heat conduction chamber and the reforming chamber are integrally formed; and heat conduction fins are arranged on the side walls of the first heat conduction chamber and the second heat conduction chamber.
Optionally, the reforming chamber includes a third flow channel and a fourth flow channel, the third flow channel and the fourth flow channel are both arranged in a bent manner on different side walls of the reforming module, and the third flow channel and the fourth flow channel are communicated with each other; the third flow channel is communicated with a methanol liquid supply pipe; and a catalyst for reforming catalytic reaction is arranged in the fourth flow channel, and the fourth flow channel is communicated with the purification chamber.
Optionally, two heating modules are arranged side by side; the heat release chamber of one heating module is communicated with the first heat conduction chamber, and the mixing chamber, the heat release chamber and the first heat conduction chamber are sequentially arranged in the same axial direction; the heat release chamber of the other heating module is communicated with the second heat conduction chamber, and the mixing chamber, the heat release chamber and the second heat conduction chamber are sequentially arranged in the same axial direction.
Optionally, the exhaust gas drain of the purification chamber is in communication with the mixing chamber to enable the high temperature exhaust gas of the purification chamber to flow back to the mixing chamber and be used to heat the mixture.
Optionally, the heating module further includes a liquid inlet channel disposed around the mixing chamber, and a plurality of liquid outlet holes are disposed at intervals on the liquid inlet channel, the liquid outlet holes are communicated with the mixing chamber, and the liquid inlet channel is used for conveying a mist or liquid reaction liquid to the mixing chamber; the air supply device is used for supplying air to the mixing chamber.
Optionally, the reaction solution is liquid; the heating module further comprises at least one electric heating rod for preheating any one or more of the air, the reaction liquid or the mixture in the heating module to warm up and completely atomize the mixture.
Optionally, the heating module further comprises a heating flow channel, one end of the heating flow channel is communicated with the external liquid supply pipe, and the other end of the heating flow channel is communicated with the mixing chamber; one of the electric heating rods is used for preheating the reaction liquid in the heating flow channel so as to heat and atomize the reaction liquid.
Optionally, the heating flow channel comprises at least a first flow channel and a second flow channel; the first flow channel is communicated with the external liquid supply pipe, and a plurality of interference flow columns are arranged at intervals in the axial extension direction of the first flow channel; the second flow passage is arranged in a bent manner and communicated with the mixing chamber.
Optionally, at least one temperature sensor is provided in the heating module for monitoring the temperature of the mixing or heat-emitting chamber.
The application provides a methanol hydrogen production device, has following beneficial effect at least:
heating, reforming and purification are divided into three independent module settings, and the functions are independent, and can be disassembled from one another, so that the methanol hydrogen production device has high modularization degree, can conveniently replace different modules according to needs, and is simple in structure and convenient to maintain.
The heating module adopts a catalytic reaction heat release mode to provide heat for the reforming module and the purification module, and the air supply device blows the mixture in the mixing chamber to the catalytic reaction module for catalytic heat release. So, release heat through catalytic reaction, compare in combustion heating and electric heating's heating methods, the equipment volume that catalytic reaction exothermic needs is littleer, and the heating energy consumption is low, and heat release is more stable, can be even, stably to methanol reforming and purification heating. In conclusion, the methanol hydrogen production device has the advantages of small volume, high modularization degree, convenience in maintenance, low energy consumption and stable heat release, thereby greatly improving the hydrogen production efficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a perspective view of a methanol hydrogen plant according to some embodiments of the present application;
FIG. 2 is a perspective view of another perspective of a methanol hydrogen plant in accordance with certain embodiments of the present disclosure;
FIG. 3 is an exploded view of a methanol hydrogen plant according to further embodiments of the present application;
FIG. 4 is a cross-sectional view of a methanol hydrogen plant in accordance with certain embodiments of the present application;
FIG. 5 is a perspective view of a reforming module in some embodiments of the present application;
FIG. 6 is a perspective view of another perspective of a reformer module according to some embodiments of the present disclosure;
FIG. 7 is a perspective view of a gas splitter according to some embodiments of the present application;
FIG. 8 is a perspective view of the heating module after it has been concealed from the air delivery means in some embodiments of the present application;
FIG. 9 is a perspective view of another view of the heating module after concealing the air delivery device in some embodiments of the present application;
FIG. 10 is a perspective view of another perspective of a methanol hydrogen plant according to some embodiments of the present disclosure.
Wherein, in the figures, the respective reference numerals:
100. a reforming module;
110. a reforming chamber; 111. a third flow path; 112. a fourth flow channel; 120. a first heat transfer chamber; 130. a methanol feed pipe;
200. a purification module;
210. a purification chamber; 211. an exhaust gas duct; 212. pure hydrogen calandria; 220. a second heat transfer chamber;
300. a heating module;
310. an air supply device; 311. a blower; 312. a gas diverter; 3121. a flow guide head; 3122. a flow baffle plate; 3123. a splitter plate; 320. a mixing chamber; 330. a catalytic reaction module; 340. a heat release chamber; 350. an electrical heating rod; 361. a liquid outlet hole; 362. a first flow passage; 3621. a turbulence column; 363. a second flow passage; 370. an external liquid supply tube.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the present application, the reaction liquid that catalyzes the exothermic reaction is exemplified by a methanol liquid.
The exothermic reaction formula of the methanol catalytic reaction is as follows:
2CH 3 OH+3O 2 ----2CO 2 +4H 2 o, the reaction condition is the environment of the copper-zinc catalyst.
The reaction formula of the methanol reforming hydrogen production is as follows:
CH 3 OH+H 2 O----CO 2 +3H 2 the reaction conditions are high temperature and copper zinc based catalyst or noble metal based catalyst.
Referring to fig. 1 to 10 together, a methanol hydrogen production apparatus according to an embodiment of the present invention will now be described.
Referring to fig. 1 to 3, the methanol hydrogen plant includes a reforming module 100, a purification module 200, and a heating module 300.
Specifically, the method comprises the following steps:
the reforming module 100 is provided with a reforming chamber 110 and a first heat conduction chamber 120 for heating the reforming chamber 110, and a reforming catalyst is filled in the reforming chamber 110, and methanol solution undergoes a reforming reaction with the reforming catalyst in a high temperature environment to generate a hydrogen rich gas.
The purification module 200 is provided with a purification chamber 210 communicating with the reforming chamber 110, and a second heat conduction chamber 220 for heating the purification chamber 210, and the purification module 200 is used for purifying the hydrogen-rich gas after the reforming reaction to obtain pure hydrogen.
It is understood that the reforming module 100 and the purification module 200 are coated with an insulating layer at the outer side thereof.
The heating module 300 includes a housing, a gas supply device 310 and a catalytic reaction module 330, the housing is hollow, the gas supply device 310 and the catalytic reaction module 330 are disposed in the housing, a mixing chamber 320 is formed between the gas supply device 310 and the catalytic reaction module 330, a heat release chamber 340 is formed in the housing at one side of the mixing chamber 320 in the catalytic reaction module 330, and the heat release chamber 340 is communicated with the first heat conduction chamber 120 and the second heat conduction chamber 220. Wherein the housing is made of a metal material, such as an aluminum alloy. A liquid inlet for supplying the mist-like reaction liquid to the mixing chamber 320 is disposed on a side wall of the housing corresponding to the mixing chamber 320, and the air supply device 310 is disposed on a side of the mixing chamber 320 opposite to the catalytic reaction module 330, it is understood that the air supply device 310 may be an air blower 311, the air blower 311 pumps air into the mixing chamber 320 so as to sufficiently mix the air with the reaction liquid, so that oxygen in the air reacts with the reaction liquid, meanwhile, the air blower 311 is also used for blowing the mixed mixture into the catalytic reaction module 330 for a catalytic heat release reaction, and for blowing high-temperature gas generated by the catalytic heat release reaction into the heat release chamber 340, and the high-temperature gas flows into the first heat conduction chamber 120 and the second heat conduction chamber 220, so as to heat the reforming chamber 110 and the purification chamber 210.
Specifically, the reaction liquid is methanol liquid, so that the raw materials adopted by the catalytic exothermic reaction and the methanol reforming purification are both methanol liquid, that is, the same raw material supply device can be used for the catalytic exothermic reaction and the methanol reforming purification, so that the methanol reforming device is more highly integrated and has a smaller volume.
Further, the catalytic reaction module 330 may be a honeycomb catalyst containing a copper-zinc based catalyst. By providing the catalytic reaction module 330, the blower 311 blows the mixture to the honeycomb catalyst continuously and stably by utilizing the characteristics of stable heat release and small volume, so that the heating module 300 can continuously and stably supply heat to the first heat conduction chamber 120 and the second heat conduction chamber 220.
Further, the reforming module 100, the purification module 200 and the heating module 300 are detachably connected, for example, by fastening bolts. Thus, the modules are easy to disassemble and assemble, and when the catalyst in the reforming chamber 110 or the catalytic reaction device in the heating module 300 needs to be replaced, the modules can be disassembled, so that the maintenance is convenient; and, can be according to the use scene needs, change the module of equidimension not to can adapt to multiple operating condition.
In conclusion, the methanol hydrogen production device has the advantages of small volume, high modularization degree, convenience in maintenance, low heating energy consumption, stability in heating, simple structure and convenience in maintenance.
It is understood that the reforming module 100 and the purification module 200 are made of metal material, for example, metal material such as aluminum alloy, so that the reforming module 100 and the purification module 200 have better heat conductivity and can rapidly and effectively transfer heat to the reforming chamber 110 and the purification chamber 210, thereby improving hydrogen production efficiency and reducing energy consumption of the heating device.
Further, referring to fig. 2, the reforming module 100 and the purification module 200 are disposed against each other. So, the two leans on the setting, makes the heat between the two transmit each other, and when reforming module 100 and purification module 200 arbitrary temperature was less than another, the heat can transmit to the lower module of temperature to reduce temperature fluctuation, be favorable to methyl alcohol reforming and purification to go on constantly stably, with the purity and the efficiency of effective guarantee hydrogen manufacturing.
Referring to fig. 3, 5 and 6, the first heat transfer chamber 120 is integrally formed with the reforming chamber 110. Specifically, the reforming module 100 is a long column, the first heat transfer chamber 120 is disposed on one side of the column of the reforming module 100, and the reforming chamber 110 is disposed on the other side of the column of the reforming module 100. In this way, the heat obtained in the first heat conduction chamber 120 can be effectively transferred to the reforming chamber 110, so that the loss of heat is reduced, and the hydrogen production efficiency is improved. In addition, since the blowing speed of the blower 311 is fast, that is, the flowing speed of the high-temperature gas in the first and second heat-conducting compartments 120 and 220 is fast, in order to improve the heat acquisition efficiency of the first and second heat-conducting compartments 120 and 220, referring to fig. 5 and 10, heat-conducting fins are provided on the side walls in both the first and second heat-conducting compartments 120 and 220, and thus, the heat utilization rate of the first and second heat-conducting compartments 120 and 220 can be increased.
Further, referring to fig. 3, 5, 6 and 10, in some embodiments of the present application, the reforming chamber 110 includes a third flow passage 111 and a fourth flow passage 112, the third flow passage 111 and the fourth flow passage 112 are curvedly disposed on different sidewalls of the reforming module 100, and the third flow passage 111 and the fourth flow passage 112 communicate with each other. Wherein, the third flow passage 111 is communicated with the methanol supply pipe 130; a catalyst is disposed in fourth flow passage 112 and fourth flow passage 112 is in communication with purification chamber 210.
Thus, since the first heat conduction chamber 120, the third flow channel 111 and the fourth flow channel 112 are integrally formed on the column of the reforming module 100, that is, the third flow channel 111 and the fourth flow channel 112 are synchronously heated by the first heat conduction chamber 120; however, the reforming catalyst reaction of the methanol solution is performed only in the fourth flow channel 112, and the third flow channel 111 is not a place for the reforming catalyst reaction, that is, the third flow channel 111 has a function of preheating the methanol solution flowing into the fourth flow channel 112. More specifically, the width of the third flow channel 111 is much smaller than the width of the fourth flow channel 112, so that when the methanol liquid enters the third flow channel 111 from the methanol liquid inlet, the methanol liquid is sufficiently heated and atomized in the third flow channel 111 in the process of flowing to the fourth flow channel 112, and when the methanol liquid reaches the fourth flow channel 112, the temperature of the methanol liquid is raised to a temperature close to the temperature required by the reforming catalytic reaction, so that the methanol liquid can be sufficiently heated before the reforming catalytic reaction is performed, thereby being beneficial to sufficiently and effectively performing the reforming catalytic reaction, and improving the hydrogen production efficiency.
Further, referring to fig. 5 and 6, the third flow passage 111 and the fourth flow passage 112 are both disposed to be curved. In this way, the lengths of the third flow channel 111 and the fourth flow channel 112 can be effectively increased, specifically, for the third flow channel 111, the preheating length of the methanol solution can be increased, so that the methanol solution can be sufficiently heated before entering the fourth flow channel 112; on the other hand, the fourth flow path 112 is longer, and the contact area between the methanol solution and the reforming catalyst can be increased, thereby increasing the production of the hydrogen-rich gas.
It will be appreciated that, with reference to fig. 2 and 3, in some implementations of the present application, the heating modules 300 are provided in two side-by-side arrangement; the heat release chamber 340 of one of the heating modules 300 communicates with the first heat conductive chamber 120, and the heat release chamber 340 of the other heating module 300 communicates with the second heat conductive chamber 220.
In this way, the first heat conduction chamber 120 and the second heat conduction chamber 220 are both provided with the separate heating module 300 for supplying heat thereto, so that the heat supply is more sufficient, and the heating module 300 heats the reforming module 100 and the purification module 200 more stably, thereby being beneficial to improving the efficiency of methanol reforming and hydrogen-rich gas purification.
Specifically, the mixing chamber 320 in one of the heating modules 300 is located in the same axial direction as the exothermic chamber 340 and the first heat conduction chamber 120 in the reforming module 100; meanwhile, the mixing chamber 320 and the heat releasing chamber 340 in another heating module 300, and the second heat conducting chamber 220 in the purification module 200 are located in the same axial direction, that is, the first heat conducting chamber 120 and the second heat conducting chamber 220 are arranged side by side and the same end openings thereof are all facing the heat releasing chamber 340, and the heat releasing chamber 340 and the mixing chamber 320 in the heating module 300 are located on the same axis.
In this way, after the mixture in the mixing chamber 320 is blown into the honeycomb catalyst by the blower 311 to perform the catalytic exothermic reaction, the high-temperature gas generated by the reaction can smoothly enter the first heat conduction chamber 120 or the second heat conduction chamber 220 through the heat release chamber 340, and the flow direction of the high-temperature gas is not greatly changed, so that the high-temperature gas can rapidly flow through the first heat conduction chamber 120 or the second heat conduction chamber 220 before the heat is lost, and the heat can be timely transferred to the reforming chamber 110 and the purification chamber 210, thereby being beneficial to improving the thermal efficiency of the methanol reforming device.
Further, referring to fig. 1 and 2, in some embodiments of the present application, the exhaust gas discharge pipe 211 of the purification chamber 210 is in communication with the mixing chamber 320, so that the exhaust gas with high temperature generated by the reaction in the purification chamber 210 can flow back to the mixing chamber 320, thereby performing an auxiliary heating function on the mixture in the mixing chamber 320.
Thus, since the pure hydrogen is discharged to the external hydrogen collecting device through the pure hydrogen discharge pipe 212 of the purifying chamber 210 after the hydrogen-rich gas is purified in the purifying chamber 210, the exhaust gas generated during the purification process of the hydrogen-rich gas has a higher temperature, and the high-temperature exhaust gas in the purifying chamber 210 is utilized, such that: on one hand, the temperature of the mixture to be reacted can be stabilized, so that the catalytic exothermic reaction can be stably and efficiently carried out; on the other hand, if the methanol reforming device is provided with the electric heating rod 350 (see the following embodiment in detail), the power requirement on the electric heating rod 350 is low in the whole methanol reforming purification process, and the thermal efficiency of the methanol reforming device can be improved, thereby reducing the energy consumption.
It is understood that in some embodiments of the present application, in order to improve the mixing uniformity of the air and the methanol solution in the mixing chamber 320, so that the mixture can sufficiently react with the catalyst, and to improve the heating efficiency of the heating module 300, the gas supply device 310 and the methanol solution inlet of the mixing chamber 320 are arranged as follows.
Referring to fig. 2 to 4, and fig. 7, in the air supply device 310, the air supply device 310 includes a blower 311 and a gas flow divider 312, and the gas flow divider 312 is disposed at one side of the gas-liquid mixing chamber 320 and is communicated with a blowing channel of the blower 311 for scattering and dividing air. Furthermore, the gas splitter 312 includes a flow guiding head 3121 disposed opposite to the air supply channel of the blower 311, a flow blocking plate 3122 disposed at the bottom of the flow guiding head 3121, and a splitter 3123 disposed around the flow guiding head 3121 and in a divergent manner; the dividing plates 3123 extend from the side wall of the air dividing member 312 toward the guide head 3121, but are not connected to each other, and the ends of the dividing plates 3123 are connected to the baffle 3122.
In this way, when the air blown by the blower 311 is guided by the guiding head 3121 and collides with the sidewalls of the dividing flaps 3123, the collided air flow changes its direction and collides with the sealing plate, and then changes its direction again to collide with the flow blocking plate 3122, in this process, the air continuously blown by the blower 311 is mixed with the air having changed directions many times in the gas dividing member 312, and finally flows into the mixing chamber 320. At this time, the air flowing into the mixing chamber 320 is sufficiently dispersed and divided, so that the contact area of the air and the methanol solution is increased to ensure that the air and the methanol solution can be sufficiently mixed.
Referring to fig. 3, 4 and 8, in the mixing chamber 320, a liquid inlet flow channel is provided in the heating module 300 around the mixing chamber 320, specifically, the liquid inlet flow channel is provided on a side wall of the housing, and a plurality of liquid outlet holes 361 are provided at intervals on the liquid inlet flow channel, the liquid outlet holes 361 are communicated with the mixing chamber 320, and the liquid inlet flow channel is used for conveying the mist or liquid reaction liquid to the mixing chamber 320. In this way, when the methanol liquid is supplied to the mixing chamber 320, the atomized methanol liquid can be uniformly sprayed into the mixing chamber 320 and sufficiently mixed with the air.
It can be understood that, referring to fig. 2 and 3, in some embodiments of the present application, an electric heating rod 350 is disposed in the heating module 300, and is used for heating the methanol liquid, the air or the mixture of the two in the heating module 300, so that the methanol liquid can be heated and atomized quickly, the methanol reforming device can be omitted to be equipped with an atomization device such as a high-pressure atomization device, and the like, to reduce the volume of the methanol reforming device, and the temperature of the mixture can be increased, so that the catalytic exothermic reaction can proceed more quickly, and the exothermic efficiency can be increased.
It will be appreciated that the electrically heated rod 350 is sufficient to atomize the methanol solution and provide the mixture with a certain initial temperature (e.g. 100 ℃). The electrical heating rod 350 may only heat the delivery external supply tube 370; the mixing chamber 320 may also be heated; or the air blown by the blower 311.
It is understood that, when the electric heating rod 350 is used to heat the air blown by the blower 311, the gas flow divider 312 is made of an aluminum alloy, and the electric heating rod 350 is provided in the gas flow divider 312. In this way, after the electric heating rod 350 heats the gas splitter 312, when the air flows through the gas splitter 312, the heat on the gas splitter 312 can be sufficiently transferred to the air, thereby heating the air.
Thus, the electric heating rod 350 has a small volume, a high starting speed and a high heat generation efficiency, and can be inserted into the side wall of the shell, so that the air, methanol liquid or mixture in the shell can be heated.
Further, in order to facilitate heating of the methanol liquid, referring to fig. 3, 8 and 9, a heating flow channel is further disposed on the side wall of the casing, one end of the heating flow channel is communicated with the external liquid supply pipe 370, and the other end is communicated with the liquid inlet flow channel; one of the electric heating rods 350 is used for preheating the methanol liquid in the heating flow channel, so that the methanol liquid is heated and atomized.
Specifically, the electrical heating rod 350 is disposed in the side wall of the casing, and the casing is made of a metal material, so that the casing has a good heat conduction performance, and when the electrical heating rod 350 is started, the electrical heating rod can not only efficiently heat the heating flow channel in the side wall of the casing, but also transfer heat to the inside of the casing, thereby heating the mixing chamber 320 and the catalytic reaction module 330, and further improving the catalytic reaction rate of the methanol solution.
In this way, after the methanol solution is heated and atomized in the heating flow channel, the methanol solution is atomized so as to be sufficiently mixed with air after entering the mixing chamber 320. Compared with the method of preheating only air, the method has the advantages that heat is transferred to the methanol liquid through the air, so that the temperature and the mixing uniformity of the air and the methanol liquid can be further improved, and favorable conditions are provided for catalytic exothermic reaction.
With respect to the heating flow channel, referring to fig. 8 and 9, specifically, the heating flow channel includes at least a first flow channel 362 and a second flow channel 363; the first flow channel 362 is communicated with an external liquid supply pipe 370, and a plurality of turbulence columns 3621 are arranged at intervals in the axial extension direction of the first flow channel 362; the second flow channel 363 is disposed in a curved manner and is communicated with the liquid feeding flow channel.
Through set up vortex post 3621 on the axis extending direction of first runner 362, when the methanol-water liquid flowed into first runner 362 by outside feed pipe 370, under the vortex effect of vortex post 3621, thereby the flow direction of methanol-water liquid is disturbed and is formed the turbolator to make the methanol-water liquid can be full of first runner 362. Further, vortex column 3621 interval is provided with a plurality of, so, can further improve the disturbing effect to the methanol liquid.
The second flow channel 363 is disposed behind the first flow channel 362, and the second flow channel 363 is disposed in a bent manner, so that the space of the side wall of the housing can be fully utilized to lengthen the length of the second flow channel 363 as much as possible. Because one of them electrical heating rod 350 sets up in the casing, second runner 363 sets up like this, the methanol solution is being broken up by first runner 362 fully and is disturbed the back, can be full of second runner 363 completely to make the heat on the casing lateral wall can fully transmit to the methanol solution in order to its heating, thereby improve heating efficiency, make the sufficient atomizing of methanol solution.
It is understood that in some embodiments of the present application, at least one temperature sensor (not shown) is provided in the heating module 300 for monitoring the temperature of any one or more of the mixing chamber 320 or the heat-emitting chamber 340.
Specifically, only one temperature sensor may be provided, which is disposed in the heat release chamber 340 and is used for monitoring whether the temperature of the high-temperature gas generated by the catalytic reaction meets the temperature requirements of the reforming reaction and the purification reaction; alternatively, two temperature sensors may be provided, besides the heat release chamber 340, another one is provided in the mixing chamber 320 for monitoring the initial temperature of the mixture, so as to control the heating temperature of the electric heating rod 350 on the gas splitter 312 and the heating flow channel; or, three temperature sensors may be provided, which are respectively disposed in the heat release chamber 340, the gas splitter 312 and the heating channel, so as to detect the temperature of the air, the methanol solution and the high-temperature gas generated by the catalytic reaction, thereby realizing accurate temperature adjustment, and improving the reaction efficiency of methanol reforming and purification.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A methanol hydrogen production apparatus is characterized by comprising:
a reforming module provided with a reforming chamber and a first heat conduction chamber for heating the reforming chamber;
the purification module is provided with a purification chamber communicated with the reforming chamber and a second heat conduction chamber used for heating the purification chamber, and is used for purifying the hydrogen-rich gas after reforming reaction to obtain pure hydrogen;
the heating module comprises an air supply device, a mixing chamber, a catalytic reaction module and a heat release chamber; the air supply device is used for blowing the mixture in the mixing chamber into the catalytic reaction module to perform catalytic heat release; the heat release chamber is arranged on one side of the catalytic reaction module, which is far away from the mixing chamber, and is communicated with the first heat conduction chamber and the second heat conduction chamber;
the reforming module, the purification module and the heating module are detachably connected.
2. The apparatus for producing hydrogen from methanol as defined in claim 1, wherein: the reforming module and the purification module are both made of metal materials, and the reforming module and the purification module are arranged in an abutting mode; the first heat conduction chamber and the reforming chamber are integrally formed; and heat conduction fins are arranged on the side walls of the first heat conduction chamber and the second heat conduction chamber.
3. The apparatus for producing hydrogen from methanol as claimed in claim 2, characterized in that:
the reforming chamber comprises a third flow channel and a fourth flow channel, the third flow channel and the fourth flow channel are arranged on different side walls of the reforming module in a bending mode, and the third flow channel and the fourth flow channel are communicated with each other;
the third flow channel is communicated with a methanol liquid supply pipe;
and a catalyst for reforming catalytic reaction is arranged in the fourth flow channel, and the fourth flow channel is communicated with the purification chamber.
4. The apparatus for producing hydrogen from methanol as claimed in claim 1, characterized in that:
two heating modules are arranged side by side;
the heat release chamber of one heating module is communicated with the first heat conduction chamber, and the mixing chamber, the heat release chamber and the first heat conduction chamber are sequentially arranged in the same axial direction;
the heat release chamber of the other heating module is communicated with the second heat conduction chamber, and the mixing chamber, the heat release chamber and the second heat conduction chamber are sequentially arranged in the same axial direction.
5. The apparatus for producing hydrogen from methanol as claimed in any of claims 1 to 4, wherein: an exhaust gas discharge pipe of the purifying chamber is communicated with the mixing chamber so that the high-temperature exhaust gas of the purifying chamber can flow back to the mixing chamber and be used for heating the mixture.
6. The apparatus for producing hydrogen from methanol as claimed in claim 1, characterized in that:
the heating module further comprises a liquid inlet flow channel arranged around the mixing chamber, a plurality of liquid outlet holes are arranged on the liquid inlet flow channel at intervals, the liquid outlet holes are communicated with the mixing chamber, and the liquid inlet flow channel is used for conveying vaporific or liquid reaction liquid to the mixing chamber;
the air supply device is used for supplying air to the mixing chamber.
7. The apparatus for producing hydrogen from methanol as defined in claim 6, wherein: the reaction liquid is liquid; the heating module further comprises at least one electric heating rod for preheating any one or more of the air, the reaction liquid or the mixture in the heating module to warm up and completely atomize the mixture.
8. An apparatus for producing hydrogen from methanol as defined in claim 7, wherein: the heating module also comprises a heating flow passage, one end of the heating flow passage is communicated with an external liquid supply pipe, and the other end of the heating flow passage is communicated with the mixing chamber; one of the electric heating rods is used for preheating the reaction liquid in the heating flow channel so as to heat and atomize the reaction liquid.
9. An apparatus for producing hydrogen from methanol as defined in claim 8, wherein: the heating flow passage at least comprises a first flow passage and a second flow passage; the first flow channel is communicated with the external liquid supply pipe, and a plurality of interference flow columns are arranged at intervals in the axial extension direction of the first flow channel; the second flow passage is arranged in a bent manner and communicated with the mixing chamber.
10. The apparatus for producing hydrogen from methanol as defined in claim 1, wherein: at least one temperature sensor is provided in the heating module for monitoring the temperature of the mixing or heat release chamber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210910666.5A CN115159455A (en) | 2022-07-29 | 2022-07-29 | Methanol hydrogen production device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210910666.5A CN115159455A (en) | 2022-07-29 | 2022-07-29 | Methanol hydrogen production device |
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| CN115159455A true CN115159455A (en) | 2022-10-11 |
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| CN202210910666.5A Pending CN115159455A (en) | 2022-07-29 | 2022-07-29 | Methanol hydrogen production device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116425116A (en) * | 2023-05-30 | 2023-07-14 | 摩氢科技有限公司 | Small-volume methanol reforming hydrogen production reaction device |
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