CN115367704A - Skid-mounted methanol reforming hydrogen production purification equipment and hydrogen production purification method thereof - Google Patents
Skid-mounted methanol reforming hydrogen production purification equipment and hydrogen production purification method thereof Download PDFInfo
- Publication number
- CN115367704A CN115367704A CN202211300050.2A CN202211300050A CN115367704A CN 115367704 A CN115367704 A CN 115367704A CN 202211300050 A CN202211300050 A CN 202211300050A CN 115367704 A CN115367704 A CN 115367704A
- Authority
- CN
- China
- Prior art keywords
- pipe
- hydrogen production
- gas
- hydrogen
- methanol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
- C01B3/508—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by selective and reversible uptake by an appropriate medium, i.e. the uptake being based on physical or chemical sorption phenomena or on reversible chemical reactions
-
- 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
-
- 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
- C01B2203/042—Purification by adsorption on solids
-
- 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
- C01B2203/0866—Methods of heating the process for making hydrogen or synthesis gas by combination of different heating methods
-
- 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
- C01B2203/0872—Methods of cooling
- C01B2203/0883—Methods of cooling by indirect heat exchange
-
- 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
-
- 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
- C01B2203/1288—Evaporation of one or more of the different feed components
- C01B2203/1294—Evaporation by heat exchange with hot process stream
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Hydrogen, Water And Hydrids (AREA)
Abstract
The invention discloses skid-mounted methanol reforming hydrogen production purification equipment and a hydrogen production purification method thereof, which relate to the field of industrial gas preparation, and have the technical scheme key points that: including the container, the methanol-water compounding jar of setting in the container, raw materials heat exchanger, the gas-liquid separation subassembly, reaction hydrogen plant and PSA hydrogen purification device, reaction hydrogen plant is including setting up the hydrogen manufacturing casing in the container, from top to bottom set gradually the preheating tube in the hydrogen manufacturing casing, the reformer tube, the vaporizer tube, tubular combustion assembly, electric heater and air-supply line, be provided with the raw materials delivery pump between methanol-water compounding jar and raw materials heat exchanger's the first input end, the gas-liquid separation subassembly still is connected with tubular combustion assembly through the trachea, be connected with methanol-water compounding jar through liquid recovery pipe. The invention has the advantages of good energy-saving effect, small volume and good mobility, and is suitable for hydrogen production requirements under various environments.
Description
Technical Field
The invention relates to the field of industrial gas preparation, in particular to skid-mounted methanol reforming hydrogen production purification equipment and a hydrogen production purification method thereof.
Background
Hydrogen is the most widely used industrial gas, widely used in the fields of petroleum, chemical industry, electronics, medicine, etc., and is called factory blood. The preparation method of the hydrogen comprises the traditional hydrogen production by water electrolysis, hydrogen production by hydrogen-rich tail gas purification, and hydrogen production by cracking, decomposing and reforming of natural gas, coal, ammonia, methanol, heavy oil and the like which are used as raw materials, wherein the hydrogen production by methanol reforming is more applied due to the advantages of convenient raw material source, easy operation and the like.
At present, the industrial hydrogen production mainly adopts a method for producing hydrogen by reforming methanol water, and the current methanol water reforming hydrogen production device mainly has the following defects:
1. the existing methanol water reforming hydrogen production device occupies a large area, so that the investment is increased, the construction period of the device is long, the device is about 6-8 months long, in addition, related professional technical personnel are required to be supplemented for operating and maintaining the device, and the personnel cost is increased;
2. at present, heat conduction oil is used as a heating heat source for a methanol water reforming hydrogen production device, the heat source is heated by burning natural gas or heating by electricity, the energy consumption is high, and a large amount of heat loss can be caused during working. In addition, the introduction of a heat-conducting oil heating system can increase the volume of equipment undoubtedly and increase the land cost of the device;
generally speaking, the traditional methanol hydrogen production device is fixed and immovable, and has the advantages of longer construction period, larger occupied area and more energy waste.
Therefore, a new solution is needed to solve this problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide skid-mounted methanol reforming hydrogen production purification equipment and a hydrogen production purification method thereof, which have the advantages of good energy-saving effect, small volume and good mobility and are suitable for hydrogen production requirements under various environments.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a sled dress formula methyl alcohol reforming hydrogen manufacturing purification equipment, includes container, sets up methanol-water mixing tank, raw materials heat exchanger, gas-liquid separation subassembly, reaction hydrogen manufacturing installation and PSA hydrogen purification device in the container, reaction hydrogen manufacturing installation is including setting up the hydrogen manufacturing casing in the container, from top to bottom set gradually preheating tube, reformer tube, vaporization pipe, tubular combustion assembly, electric heater and the air-supply line in the hydrogen manufacturing casing, be provided with import and export on the hydrogen manufacturing casing respectively, the heat exchanger includes first input, first output, second input and second output, methanol-water mixing tank, the first input of raw materials heat exchanger, the first output of raw materials heat exchanger, import, preheating tube, vaporization pipe, reformer tube order intercommunication, be provided with the raw materials delivery pump between methanol-water mixing tank and the first input of raw materials heat exchanger, the output of reformer tube and the second input intercommunication of heat exchanger, second output, PSA separation subassembly and hydrogen purification device order intercommunication of raw materials heat exchanger, gas-liquid separation subassembly still is connected through trachea and combustion assembly, through liquid recovery tube and connect the gaseous ignition ware of firing in the mixing tank, be used for carrying out the ignition ware in the gas-liquid-gas mixing tank.
In one embodiment, the gas-liquid separation assembly comprises an outer cylinder, an upper end enclosure and a lower end enclosure which are fixedly connected to the upper end and the lower end of the outer cylinder respectively, a closed cavity is formed by enclosing the upper end enclosure, the lower end enclosure and the outer cylinder, a water outlet is communicated and arranged between the lower end enclosure and the closed cavity, a gas outlet is communicated and arranged between the upper end enclosure and the closed cavity, a gas inlet is communicated and arranged between the side wall of the outer cylinder close to one end of the upper end enclosure and the closed cavity, an inner cylinder is fixed on the upper end enclosure positioned in the closed cavity, the diameter of the inner cylinder is larger than that of the gas outlet and smaller than that of the outer cylinder, and the gas outlet is positioned on the inner side of the inner cylinder, the improved water-gas separator is characterized in that a partition plate is arranged between the inner barrel body and the lower end socket on the inner side wall of the outer barrel body, a water storage chamber is formed between the partition plate and the lower end socket, a gas-liquid separation plate is arranged on the partition plate, a water falling port is arranged on one side, located on the gas-liquid separation plate, of the partition plate, the water falling port is arranged into a plurality of parts and a plurality of parts, the water falling port is arranged along the circumferential annular array of the partition plate, the upper end socket and the lower end socket are both arranged into a hollow hemispherical structure, the upper end socket and the lower end socket are arranged in a vertically symmetrical mode, the gas outlet, the inner barrel body, the outer barrel body, the gas-liquid separation plate, the partition plate and the water outlet are arranged with the same axial lead, the gas-liquid separation plate is a circular flat plate, and the outer side wall of the outer barrel body is provided with a connecting flange.
In one embodiment, the tubular combustion assembly comprises a first pipe body, a second pipe body and a combustion pipe fixedly connected between the first pipe body and the second pipe body, the first pipe body, the second pipe body and the combustion pipe are communicated with each other internally, the combustion pipe is provided with a plurality of pipes, the plurality of pipes are arranged in parallel, the axes of the combustion pipe are in the same horizontal plane, and each pipe is provided with a nozzle communicated with the inside of the combustion pipe, the middle of the first pipe body is communicated with an air inlet pipe, the nozzles are arranged into a plurality of pipes and a plurality of nozzles arranged on two sides of the combustion pipe at the same horizontal height respectively, the nozzles are open holes formed in the combustion pipe, arc-shaped parts are formed in the second pipe body in an inwards concave mode, the two arc-shaped parts are arranged on two sides of the second pipe body at the same horizontal height respectively, and the cross sections of the first pipe body, the combustion pipe and the air inlet pipe are circular.
In one embodiment, a water cooler is arranged between the second output end of the raw material heat exchanger and the gas-liquid separation assembly.
In one embodiment, at least one PSA hydrogen purification device is arranged, a connecting part is arranged on the PSA hydrogen purification device, the connecting part is detachably connected with a container through a bolt, and the PSA hydrogen purification devices are connected in parallel through connecting pipes.
In one embodiment, the inner side wall of the hydrogen production machine shell is provided with an insulating layer, and the hydrogen production machine shell is provided with a tail gas outlet which is communicated with the inside of the hydrogen production machine shell.
In one embodiment, a separation plate for independently separating the PSA hydrogen purification device is arranged in the container, the separation plate separates the container to form a PSA purification area, and an exhaust fan for exhausting air to the outside of the container is arranged in the PSA purification area.
In one embodiment, the input end of the air inlet pipe is connected with a blower.
In one embodiment, the hydrogen production purification method of the skid-mounted methanol reforming hydrogen production purification device comprises the following steps:
s1, skid-mounting a container to a required hydrogen production site, and connecting hydrogen production purification equipment with a power supply of the hydrogen production site;
s2, conveying the methanol-water raw material liquid with the target proportion into a methanol-water mixing tank;
s3, starting equipment, controlling the electric heater to work, when the electric heater heats the temperature inside the hydrogen production shell to a set temperature, pressurizing the methanol-water raw material liquid to 1.2Mpa (G) by the raw material delivery pump, and then vaporizing the methanol-water raw material liquid by the raw material heat exchanger, the preheating pipe and the vaporizing pipe and then entering the reforming pipe in a gaseous state for reaction;
s4, obtaining high-temperature reformed gas after the step S3;
s5, exchanging heat of the high-temperature reformed gas through a heat exchanger, cooling the high-temperature reformed gas to be below 40 ℃ through a water cooler, and finally separating the high-temperature reformed gas by a gas-liquid separation assembly to obtain hydrogen-rich gas and unreacted liquid-phase methanol aqueous solution;
s6, introducing a part of hydrogen-rich gas into a combustion tube, igniting the part of hydrogen-rich gas by an igniter to replace an electric heater to provide required heat for the reaction hydrogen production device, stopping heating by the electric heater at the moment, and introducing the other part of hydrogen-rich gas into a PSA hydrogen purification device to purify to obtain high-purity hydrogen;
and S7, refluxing the unreacted liquid-phase methanol aqueous solution to a methanol-water mixing tank to be used as methanol-water raw material solution for reuse.
In conclusion, the invention has the following beneficial effects: 1. according to the invention, the methanol-water mixing tank, the raw material heat exchanger, the gas-liquid separation assembly, the reaction hydrogen production device and the PSA hydrogen purification device are integrated in the container in a skid-mounted manner, so that the occupied area is small, the mobility is good, and the hydrogen production requirements under different environments can be met; 2. the user only needs to provide methanol-water raw material liquid, electricity, gas and the like required by the equipment, other related matching devices are not needed, so that the equipment volume is smaller, the personnel management cost and the equipment maintenance cost are reduced, and a certain number of components can be connected in parallel, so that different hydrogen using requirements of the user under various working conditions are met; 3. in the initial stage of the reaction, the electric heater is introduced to provide initial heat for the reaction, and as the reaction proceeds, after the hydrogen-rich gas is produced, the heat required by the reaction is met through the combustion of the hydrogen-rich gas in the combustion tube, and then the electric heater is stopped, so that the energy consumption is effectively reduced.
Drawings
FIG. 1 is a schematic structural diagram of a skid-mounted methanol reforming hydrogen production purification plant according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of an exhaust fan and a partition plate in the skid-mounted methanol reforming hydrogen production and purification equipment according to the embodiment of the application;
FIG. 3 is a schematic structural diagram of a reaction hydrogen production device in the skid-mounted methanol reforming hydrogen production purification equipment according to the embodiment of the application;
FIG. 4 is a schematic structural diagram of a tubular combustion assembly in a skid-mounted methanol reforming hydrogen production purification plant according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a gas-liquid separation assembly in a skid-mounted methanol reforming hydrogen purification plant according to an embodiment of the present application;
fig. 6 is a flow chart of a hydrogen production purification method of a skid-mounted methanol reforming hydrogen production purification plant according to an embodiment of the present application.
In the figure: 1. a container; 2. a reaction hydrogen production device; 21. a preheating pipe; 22. reforming the tube; 23. a vaporization tube; 24. a tubular combustion assembly; 241. a first pipe body; 242. a second tube body; 243. a combustion tube; 2431. a nozzle; 244. an air inlet pipe; 25. an electric heater; 26. an air inlet pipe; 3. a PSA hydrogen purification device; 4. an exhaust fan; 5. a partition plate; 6. a gas-liquid separation assembly; 61. an outer cylinder; 611. an air inlet; 62. an upper end enclosure; 621. an air outlet; 63. a lower end enclosure; 631. a water outlet; 64. an inner cylinder; 65. a partition plate; 651. a water falling port; 66. a gas-liquid separation plate; 67. and connecting the flanges.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, fig. 2, fig. 3 and fig. 6, an embodiment of the present application provides a skid-mounted methanol reforming hydrogen production purification apparatus, which includes a container 1, a methanol-water mixing tank disposed in the container 1, a raw material heat exchanger, a gas-liquid separation assembly 6, a reaction hydrogen production apparatus 2 and a PSA hydrogen purification apparatus 3. The reaction hydrogen production device 2 comprises a hydrogen production casing arranged in the container 1, and a preheating pipe 21, a reforming pipe 22, a vaporizing pipe 23, a tubular combustion assembly 24, an electric heater 25 and an air inlet pipe 26 which are sequentially arranged in the hydrogen production casing from top to bottom. The hydrogen production machine shell is provided with an inlet and an outlet respectively, the heat exchanger comprises a first input end, a first output end, a second input end and a second output end, and the methanol-water mixing tank, the first input end of the raw material heat exchanger, the first output end of the raw material heat exchanger, the inlet, the preheating pipe 21, the vaporizing pipe 23 and the reforming pipe 22 are communicated in sequence. And a raw material delivery pump is arranged between the methanol-water mixing tank and the first input end of the raw material heat exchanger. The output of the reforming tube 22 is in communication with a second input of the heat exchanger. And the second output end of the raw material heat exchanger, the gas-liquid separation assembly 6 and the PSA hydrogen purification device 3 are communicated in sequence. The gas-liquid separation component 6 is also connected with the tubular combustion component 24 through a gas pipe and connected with the methanol-water mixing tank through a liquid recovery pipe, and an igniter for igniting the gas in the tubular combustion component 24 is further arranged in the hydrogen production casing.
It should be noted that, the raw material heat exchanger, the PSA hydrogen purification apparatus 3, and the reforming tube 22 all adopt the prior art, the raw material heat exchanger is a common plate heat exchanger, the PSA hydrogen purification apparatus 3 is also called a pressure swing adsorption hydrogen purification apparatus, the reforming tube 22 includes two hollow connection portions, a reforming tube 22 body disposed between the two hollow connection portions in a communicating manner, and heat conduction fins spirally wrapped on the circumferential wall outside the reforming tube 22 body, the reforming tube 22 body is disposed to be a plurality of, the reforming tube 22 body is disposed on the same horizontal plane in parallel, a catalyst is further disposed in the reforming tube 22 body, wherein the common catalyst is CuO, znO, al2O3, etc., and other specific structures are not described in detail in this embodiment.
When the device works, the container 1 is skid-mounted to a required hydrogen production site, and hydrogen production purification equipment is connected with a power supply of the hydrogen production site; conveying the methanol-water raw material liquid with the target proportion into a methanol-water mixing tank; starting equipment, controlling the electric heater 25 to work, when the electric heater 25 heats the temperature in the hydrogen production shell to a set temperature, pressurizing a methanol-water raw material liquid to 1.2Mpa (G) by using a raw material delivery pump, vaporizing the methanol-water raw material liquid by using a raw material heat exchanger, a preheating pipe 21 and a vaporization pipe 23, and then feeding the vaporized methanol-water raw material liquid into a reforming pipe 22 in a gaseous state to react to obtain a high-temperature reformed gas (the gas comprises 74-75% of hydrogen, 1-3% of CO and 22-25% of CO 2); the high-temperature reformed gas exchanges heat through a heat exchanger, and finally the high-temperature reformed gas is separated by a gas-liquid separation component 6 to obtain hydrogen-rich gas and liquid-phase methanol water solution which is not reacted completely; one part of hydrogen-rich gas enters the combustion pipe 243, the igniter ignites the part of hydrogen-rich gas to replace the electric heater 25 to provide required heat for the reaction hydrogen production device 2, the electric heater 25 stops heating at the moment, and the other part of hydrogen-rich gas enters the PSA hydrogen purification device 3 to remove CO, CO2 and other miscellaneous gases so as to obtain high-purity hydrogen with the purity of more than 99.995%; and refluxing the unreacted liquid-phase methanol aqueous solution to a methanol-water mixing tank to be used as methanol-water raw material solution for reuse.
In the mode, the methanol-water mixing tank, the raw material heat exchanger, the gas-liquid separation assembly 6, the reaction hydrogen production device 2 and the PSA hydrogen purification device 3 are integrated in the container 1 in a skid-mounted manner, so that the occupied area is small, the mobility is good, and the hydrogen production requirements under different environments can be met; the user only needs to provide methanol-water raw material liquid, electricity and gas required by the equipment, and other related matching devices are not needed, so that the equipment is small in size, the personnel management cost and the equipment maintenance cost are reduced, and a certain number of components can be connected in parallel, so that different hydrogen using requirements of the user under various working conditions are met; in the initial stage of the reaction, the electric heater 25 is introduced to provide initial heat for the reaction, and as the reaction proceeds, after the hydrogen-rich gas is produced, the heat required by the reaction is met through the combustion of the hydrogen-rich gas in the combustion pipe 243, and the electric heater 25 is stopped to be used later, so that the energy consumption is effectively reduced; the preheating pipe 21, the reforming pipe 22, the vaporizing pipe 23, the tubular combustion assembly 24, the electric heater 25 and the air inlet pipe 26 are sequentially arranged from top to bottom, so that the design of process parameters is better met, the process temperature parameters of the vaporizing pipe 23, the reforming pipe 22 and the preheating pipe 21 are gradually reduced, the heat exchange of the combustion gas is more consistent with the efficiency of energy transfer in the sequence, the heat of the high-temperature gas is utilized to the maximum extent, the heat of the externally discharged combustion gas is reduced, and the full utilization of the heat is facilitated.
On the basis, as shown in fig. 5, the gas-liquid separation assembly 6 includes an outer cylinder 61, an upper head 62 and a lower head 63, which are respectively welded and fixedly connected to the upper end and the lower end of the outer cylinder 61, and a closed cavity is formed among the upper head 62, the lower head 63 and the outer cylinder 61. The intercommunication is provided with outlet 631 on the low head 63 and between the airtight cavity, the intercommunication is provided with gas outlet 621 between upper head 62 and the airtight cavity, is close to upper head 62 one end communicate on the lateral wall of outer barrel 61 and between the airtight cavity and be provided with air inlet 611, outlet 631 passes through the liquid recovery pipe and is connected with methanol-water mixing tank's input, air inlet 611 is connected with raw materials heat exchanger's second output, gas outlet 621 passes through the trachea and is connected with tubular combustion assembly 24's input. And an inner cylinder body 64 is welded and fixed on the upper seal head 62 in the closed cavity, the diameter of the inner cylinder body 64 is larger than that of the air outlet 621 and smaller than that of the outer cylinder body 61, and the air outlet 621 is positioned on the inner side of the inner cylinder body 64. A partition plate 65 is fixedly welded between an inner cylinder 64 and a lower end enclosure 63 on the inner side wall of the outer cylinder 61, a water storage chamber is formed between the partition plate 65 and the lower end enclosure 63, a gas-liquid separation plate 66 is arranged on the partition plate 65, and a water falling port 651 is arranged on one side, located on the gas-liquid separation plate 66, of the partition plate 65.
During operation, gas enters from the gas inlet 611, and under the action of the raw material delivery pump, the entering gas is in a high-pressure high-speed state to realize spiral motion in the outer cylinder 61 and collides on the gas-liquid separation plate 66 under the action of spiral centrifugal force, the liquid-phase methanol aqueous solution falls into the water storage chamber along the inner side wall of the outer cylinder 61 towards the water falling port 651 of the partition plate 65, and the hydrogen-rich gas is discharged along the inner cylinder towards the gas outlet 621 for use and collection in the next process.
In the above-mentioned mode, outer barrel 61, interior barrel 64, upper cover 62, low head 63, gas-liquid separation board 66 and baffle 65 set up to the integral type structure, simple structure has, low in production cost, the advantage that stability is good, and through baffle 65 and gas-liquid separation board 66's setting, gas-liquid separation board 66 is used for providing independent work plane for gaseous striking, baffle 65 sets up the below at gas-liquid separation board 66, be difficult to the bounce-back when making liquid whereabouts, the entering water storage chamber that can be better, and the liquid in the water storage chamber is difficult to take place the secondary with the gas and mix, better gas-liquid separation effect has.
Specifically, the water falling ports 651 are arranged in a plurality of numbers, and the water falling ports 651 are arranged in a circumferential annular array along the partition plate 65. Through the arrangement of the plurality of water falling ports 651, the passing performance of liquid is increased, so that the liquid is not easy to gather on the gas-liquid separation plate 66 and the partition plate 65.
Specifically, the gas-liquid separation plate 66 is a circular flat plate. The round flat plate has no edges and corners, so that the liquid is guided more uniformly and stably.
Specifically, the upper head 62 and the lower head 63 are both provided with a hollow hemispherical structure, and the upper head 62 and the lower head 63 are arranged in an up-and-down symmetrical manner. Through all setting up upper cover 62 and low head 63 to hollow hemispherical structure, when gaseous rising, can upwards assemble scattered gas, during the liquid whereabouts, can assemble liquid downwards, be favorable to the collection of gas and liquid to hemispherical structure has better structural stability.
Specifically, the air outlet 621, the inner cylinder 64, the outer cylinder 61, the gas-liquid separation plate 66, the partition plate 65, and the water outlet 631 are coaxially disposed.
Through the arrangement, the gas flows more uniformly, and the gas-liquid separation effect is improved.
Specifically, the outer side wall of the outer cylinder 61 is provided with a connecting flange 67.
On the basis, as shown in fig. 4, the tubular combustion assembly 24 includes a first pipe 241, a second pipe 242, and a combustion pipe 243 fixedly connected between the first pipe 241 and the second pipe 242, the first pipe 241, the second pipe 242, and the combustion pipe 243 are communicated with each other, the combustion pipe 243 is provided with a plurality of combustion pipes 243, the axes of the plurality of combustion pipes 243 are parallel and in the same horizontal plane, each combustion pipe 243 is provided with a nozzle 2431 communicated with the inside thereof, and the middle of the first pipe 241 is communicated with an air inlet pipe 244.
In operation, hydrogen enters from the inlet pipe 244 and uniformly enters each combustion pipe 243 under the shunting action of the first pipe body 241, the hydrogen in the combustion pipe 243 is sprayed out along the nozzle 2431, and the electric heater 25 ignites the hydrogen, so as to release heat to provide the required heat for the reaction hydrogen production device 2.
In the above manner, hydrogen is directly combusted at the nozzle 2431 of the combustion tube 243, compared with the conventional technology, a large-volume device is not needed to mix hydrogen and air, and the hydrogen can be ignited at the moment of being sprayed out from the nozzle 2431, so that the combustion efficiency is higher, the structure of the combustion assembly can be greatly simplified, the volume can be smaller and more compact, the axes of the combustion tubes 243 are parallel and in the same horizontal plane, so that the combustion heat can be released in a planar manner, and the heated body is heated more uniformly.
Specifically, the number of the nozzles 2431 is set to be several, and several of the nozzles 2431 are respectively disposed at both sides of the combustion pipe 243 located at the same horizontal level. By disposing the nozzles 2431 on both sides of the combustion pipe 243 at the same level, the combustion flame is spread to both sides, which is advantageous for increasing the combustion area and making the combustion more uniform.
Specifically, the nozzle 2431 is an opening formed in the combustion pipe 243. With the use of openings as nozzles 2431, more nozzles 2431 can be provided per unit area of the burner tube 243, and the structure of the burner assembly can be further simplified.
Specifically, arc portions are formed in the second pipe body 242 in an inward concave manner, and the two arc portions are arranged on two sides of the second pipe body 242 at the same horizontal height respectively. Through the setting of arc portion, can make things convenient for the joint of second body 242 and other subassemblies spacing.
Specifically, the cross sections of the first pipe 241, the combustion pipe 243 and the intake pipe 244 are circular. The circular structure has better structural stability and is beneficial to the flow of airflow.
On the basis, a water cooler is arranged between the second output end of the raw material heat exchanger and the gas-liquid separation assembly 6. The water cooler is used for cooling the high-temperature reformed gas to be below 40 ℃, the cooling time of the high-temperature reformed gas can be shortened through the arrangement of the water cooler, and the improvement of the working efficiency is facilitated.
On the basis, the PSA hydrogen purification device 3 is provided with at least one, be provided with connecting portion on the PSA hydrogen purification device 3, connecting portion pass through the bolt and can dismantle with container 1 and be connected, and is a plurality of PSA hydrogen purification device 3 passes through connecting pipe parallel connection.
The purification requirements of different purification amounts of hydrogen can be met by connecting a plurality of PSA hydrogen purification devices 3 in parallel through connecting pipes.
On the basis, the inner side wall of the hydrogen production casing is provided with a heat insulation layer, and the hydrogen production casing is provided with a tail gas outlet which is communicated with the inside of the hydrogen production casing.
The arrangement of the tail gas outlet is beneficial to discharging the tail gas generated during combustion to the outside.
On the basis, as shown in fig. 2, a separation plate 5 for independently separating the PSA hydrogen purification device 3 is arranged in the container 1, the separation plate 5 separates the container 1 to form a PSA purification area, and an exhaust fan 4 for exhausting air to the outside of the container 1 is arranged in the PSA purification area.
The arrangement of the exhaust fan 4 is favorable for ensuring the dry and ventilated environment in the PSA purification area.
On the basis, the input end of the air inlet pipe 26 is connected with a blower.
In the above manner, the blower sends fresh air into the air inlet pipe 26 to provide sufficient oxygen for the combustion of the hydrogen-rich gas in the combustion pipe 243, so that the combustion of the hydrogen-rich gas is more sufficient.
On the basis, as shown in fig. 1 to fig. 6, a hydrogen production purification method of skid-mounted methanol reforming hydrogen production purification equipment comprises the following steps:
s1, skid-mounting a container 1 to a required hydrogen production site, and connecting hydrogen production purification equipment with a power supply of the hydrogen production site;
s2, conveying the methanol-water raw material liquid with the target proportion into a methanol-water mixing tank;
s3, starting the equipment, controlling the electric heater 25 to work, and when the electric heater 25 heats the temperature inside the hydrogen production casing to a set temperature, pressurizing the methanol-water raw material liquid to 1.2Mpa (G) by the raw material delivery pump, vaporizing the raw material liquid by the raw material heat exchanger, the preheating pipe 21 and the vaporizing pipe 23, and then feeding the vaporized raw material liquid into the reforming pipe 22 to react in a gaseous state;
s4, obtaining high-temperature reformed gas after the step S3;
s5, exchanging heat of the high-temperature reformed gas through a heat exchanger, cooling to below 40 ℃ through a water cooler, and finally separating by a gas-liquid separation assembly 6 to obtain hydrogen-rich gas and an unreacted liquid-phase methanol aqueous solution;
s6, introducing a part of hydrogen-rich gas into the combustion pipe 243, igniting the part of hydrogen-rich gas by an igniter to replace the electric heater 25 to provide required heat for the reaction hydrogen production device 2, stopping heating by the electric heater 25 at the moment, and introducing the other part of hydrogen-rich gas into the PSA hydrogen purification device 3 to purify to obtain high-purity hydrogen;
and S7, refluxing the unreacted liquid-phase methanol aqueous solution to a methanol-water mixing tank to be used as methanol-water raw material liquid for reuse.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to those skilled in the art without departing from the principles of the present invention should also be considered as within the scope of the present invention.
Claims (9)
1. The skid-mounted methanol reforming hydrogen production and purification equipment is characterized in that: comprises a container (1), a methanol-water mixing tank arranged in the container (1), a raw material heat exchanger, a gas-liquid separation component (6), a reaction hydrogen production device (2) and a PSA hydrogen purification device (3), the reaction hydrogen production device (2) comprises a hydrogen production shell arranged in the container (1), a preheating pipe (21), a reforming pipe (22), a vaporizing pipe (23), a tubular combustion assembly (24), an electric heater (25) and an air inlet pipe (26) which are arranged in the hydrogen production shell from top to bottom in sequence, the hydrogen production casing is respectively provided with an inlet and an outlet, the heat exchanger comprises a first input end, a first output end, a second input end and a second output end, the methanol-water mixing tank, the first input end of the raw material heat exchanger, the first output end of the raw material heat exchanger, the inlet, the preheating pipe (21), the vaporizing pipe (23) and the reforming pipe (22) are communicated in sequence, a raw material delivery pump is arranged between the methanol-water mixing tank and the first input end of the raw material heat exchanger, the output end of the reforming pipe (22) is communicated with the second input end of the heat exchanger, the second output end of the raw material heat exchanger, the gas-liquid separation component (6) and the PSA hydrogen purification device (3) are communicated in sequence, the gas-liquid separation component (6) is also connected with the tubular combustion component (24) through a gas pipe and connected with the methanol-water mixing tank through a liquid recovery pipe, an igniter used for igniting the gas in the tubular combustion assembly (24) is also arranged in the hydrogen production casing.
2. The skid-mounted methanol reforming hydrogen production purification device as claimed in claim 1, wherein: the gas-liquid separation assembly (6) comprises an outer cylinder body (61), an upper seal head (62) and a lower seal head (63) which are fixedly connected to the upper end and the lower end of the outer cylinder body (61) respectively, a closed cavity is formed by enclosing the upper seal head (62), the lower seal head (63) and the outer cylinder body (61), a water outlet (631) is arranged between the upper seal head (63) and the closed cavity in a communicating manner, a gas outlet (621) is arranged between the upper seal head (62) and the closed cavity in a communicating manner, a gas inlet (611) is arranged between the side wall of the outer cylinder body (61) close to one end of the upper seal head (62), an inner cylinder body (64) is fixed on the upper seal head (62) positioned in the closed cavity, the diameter of the inner cylinder body (64) is larger than that of the gas outlet (621) and smaller than that of the outer cylinder body (61), the gas outlet (621) is positioned on the inner side of the inner cylinder body (64), a partition plate (65) is arranged between the inner cylinder body (64) and the lower seal head (63), a plurality of water outlet (65) are arranged on one side of the water storage chamber (66), and a plurality of water outlet (651) is arranged on one side of the upper seal head (66), a plurality of the mouth of falling into water (651) sets up along the circumference annular array of baffle (65), upper cover (62) and low head (63) all set up to hollow hemispherical structure, and upper cover (62) and low head (63) longitudinal symmetry set up, gas outlet (621), interior barrel (64), outer barrel (61), gas-liquid separation board (66), baffle (65) and outlet (631) set up with the axial lead, gas-liquid separation board (66) are a circular flat board, the lateral wall of outer barrel (61) is provided with flange (67).
3. The skid-mounted methanol reforming hydrogen production purification device as claimed in claim 1, wherein: the tubular combustion assembly (24) comprises a first pipe body (241), a second pipe body (242) and a combustion pipe (243) fixedly connected between the first pipe body (241) and the second pipe body (242), wherein the first pipe body (241), the second pipe body (242) and the combustion pipe (243) are communicated with each other, the combustion pipe (243) is arranged into a plurality of pipes, the axes of the combustion pipe (243) are parallel and are positioned in the same horizontal plane, each combustion pipe (243) is provided with a nozzle (2431) communicated with the inside of the combustion pipe (243), the middle of the first pipe body (241) is communicated with an air inlet pipe (244), the nozzles (2431) are arranged into a plurality of pipes, the nozzles (2431) are respectively arranged on two sides of the combustion pipe (243) positioned at the same horizontal height, the nozzles (2431) are open holes arranged on the combustion pipe (243), an arc-shaped part is inwards formed in the second pipe body (242), the two arc-shaped parts are respectively arranged on two sides of the second pipe body (241) positioned at the same horizontal height, and the cross sections of the first pipe body (241), the circular air inlet pipe (244).
4. The skid-mounted methanol reforming hydrogen production purification device as claimed in claim 1, wherein: and a water cooler is arranged between the second output end of the raw material heat exchanger and the gas-liquid separation assembly (6).
5. The skid-mounted methanol reforming hydrogen production purification device as claimed in claim 1, wherein: PSA hydrogen purification device (3) are provided with one at least, be provided with connecting portion on PSA hydrogen purification device (3), connecting portion pass through the bolt and can dismantle with container (1) and be connected, and is a plurality of PSA hydrogen purification device (3) are through connecting pipe parallel connection.
6. The skid-mounted methanol reforming hydrogen production purification device as recited in claim 1, wherein: the inside wall of the hydrogen production casing is provided with a heat insulation layer, and the hydrogen production casing is provided with a tail gas outlet which is communicated with the inside of the hydrogen production casing.
7. The skid-mounted methanol reforming hydrogen production purification device as recited in claim 1, wherein: be provided with in container (1) and be used for independent divided division board (5) of PSA hydrogen purification device (3), division board (5) are separated container (1) and are formed with PSA purification district, be provided with in the PSA purification district and be used for exhausting fan (4) of airing exhaust outward towards container (1).
8. The skid-mounted methanol reforming hydrogen production purification device as recited in claim 1, wherein: and the input end of the air inlet pipe (26) is connected with an air blower.
9. The hydrogen production purification method of the skid-mounted methanol reforming hydrogen production purification equipment as claimed in any one of claims 1 to 8, wherein: the method comprises the following steps:
s1, skid-mounting a container (1) to a required hydrogen production site, and connecting hydrogen production purification equipment with a power supply of the hydrogen production site;
s2, conveying the methanol-water raw material liquid with the target proportion into a methanol-water mixing tank;
s3, starting equipment, controlling an electric heater (25) to work, when the electric heater (25) heats the temperature inside the hydrogen production shell to a set temperature, pressurizing a methanol water raw material liquid to 1.2Mpa (G) by a raw material delivery pump, vaporizing the methanol water raw material liquid by a raw material heat exchanger, a preheating pipe (21) and a vaporizing pipe (23), and then feeding the vaporized methanol water raw material liquid into a reforming pipe (22) in a gaseous state for reaction;
s4, obtaining high-temperature reformed gas after the step S3;
s5, exchanging heat of the high-temperature reformed gas through a heat exchanger, cooling the high-temperature reformed gas to be below 40 ℃ through a water cooler, and finally separating the high-temperature reformed gas by a gas-liquid separation assembly (6) to obtain hydrogen-rich gas and unreacted liquid-phase methanol aqueous solution;
s6, enabling a part of hydrogen-rich gas to enter a combustion pipe (243), igniting the part of hydrogen-rich gas by an igniter to replace an electric heater (25) to provide required heat for the reaction hydrogen production device (2), stopping heating the electric heater (25) at the moment, and enabling the other part of hydrogen-rich gas to enter a PSA hydrogen purification device (3) to be purified to obtain high-purity hydrogen;
and S7, refluxing the unreacted liquid-phase methanol aqueous solution to a methanol-water mixing tank to be used as methanol-water raw material liquid for reuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211300050.2A CN115367704B (en) | 2022-10-24 | 2022-10-24 | Skid-mounted methanol reforming hydrogen production purification equipment and hydrogen production purification method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211300050.2A CN115367704B (en) | 2022-10-24 | 2022-10-24 | Skid-mounted methanol reforming hydrogen production purification equipment and hydrogen production purification method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115367704A true CN115367704A (en) | 2022-11-22 |
| CN115367704B CN115367704B (en) | 2023-06-20 |
Family
ID=84074227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211300050.2A Active CN115367704B (en) | 2022-10-24 | 2022-10-24 | Skid-mounted methanol reforming hydrogen production purification equipment and hydrogen production purification method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115367704B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203595127U (en) * | 2013-11-08 | 2014-05-14 | 刘凯 | Gas burning rod |
| CN104528639A (en) * | 2015-01-23 | 2015-04-22 | 深圳市荥阳堂投资发展有限公司 | Mixed heating bath furnace type reforming hydrogen production device |
| CN204522523U (en) * | 2015-04-22 | 2015-08-05 | 武汉齐达康环保科技有限公司 | Gas-liquid separation cyclone hydraulic separators |
| CN208545116U (en) * | 2018-04-24 | 2019-02-26 | 上海千茂化工科技有限公司 | The device of skid-mounted type methanol and vapor reforming hydrogen production gas |
| CN212954304U (en) * | 2020-07-01 | 2021-04-13 | 广东能创科技有限公司 | Methanol-water reforming hydrogen production machine and integrated circuit |
-
2022
- 2022-10-24 CN CN202211300050.2A patent/CN115367704B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203595127U (en) * | 2013-11-08 | 2014-05-14 | 刘凯 | Gas burning rod |
| CN104528639A (en) * | 2015-01-23 | 2015-04-22 | 深圳市荥阳堂投资发展有限公司 | Mixed heating bath furnace type reforming hydrogen production device |
| CN204522523U (en) * | 2015-04-22 | 2015-08-05 | 武汉齐达康环保科技有限公司 | Gas-liquid separation cyclone hydraulic separators |
| CN208545116U (en) * | 2018-04-24 | 2019-02-26 | 上海千茂化工科技有限公司 | The device of skid-mounted type methanol and vapor reforming hydrogen production gas |
| CN212954304U (en) * | 2020-07-01 | 2021-04-13 | 广东能创科技有限公司 | Methanol-water reforming hydrogen production machine and integrated circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115367704B (en) | 2023-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210795757U (en) | Hydrogen production machine | |
| CN106784924B (en) | A kind of hot zone structure of solid oxide fuel cell power generating system | |
| CN113604813A (en) | Novel high-efficient ammonia decomposition hydrogen manufacturing equipment | |
| CN101531336B (en) | Small-sized high efficiency self-heating natural gas hydrogen-preparing device | |
| CN110425737A (en) | A kind of heating plant based on the heating of methanol catalyst | |
| CN107069065B (en) | Reformer for producing hydrogen by reforming natural gas | |
| CN206786740U (en) | A kind of box integrated organic waste gas catalytic combustion purifier | |
| CN115367704B (en) | Skid-mounted methanol reforming hydrogen production purification equipment and hydrogen production purification method thereof | |
| CN206148541U (en) | Ammonia fuel cell | |
| CN210656142U (en) | Thermal cracking hydrogen production device for assisting ammonia combustion | |
| CN210795759U (en) | Heat utilization mechanism in integrated reforming hydrogen production device | |
| CN211372763U (en) | Heating device based on heating of methanol catalyst | |
| CN101538012B (en) | Device for preparing clean hydrogen-enriched fuel gas from biomass | |
| CN206514697U (en) | A kind of residual heat using device of hydrogen making by natural gas reformation reburner | |
| CN212777930U (en) | Commercial heating boiler | |
| CN106379859B (en) | Methanol steam reforming device | |
| CN201779983U (en) | Heat accumulating-type combustion reformed heating furnace | |
| CN115367703B (en) | Methanol reforming hydrogen production integrated equipment and hydrogen production method thereof | |
| CN212133387U (en) | Methanol flameless heating equipment | |
| CN110013764B (en) | Phase-change heat-storage type catalytic oxidation device for ionic liquid | |
| CN208998070U (en) | A kind of minisize liquid burner of the porous injecting type of cylinder | |
| CN105789662B (en) | Ammonia fuel cell | |
| CN217068278U (en) | Organic waste gas desorption device of gas heating | |
| CN212855292U (en) | Catalytic structure for catalytic combustion furnace | |
| CN216620693U (en) | Energy-saving and environment-friendly device for convection section of synthetic ammonia converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |