CN216155477U - Methanol skid-mounted hydrogen production machine - Google Patents
Methanol skid-mounted hydrogen production machine Download PDFInfo
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- CN216155477U CN216155477U CN202122243522.2U CN202122243522U CN216155477U CN 216155477 U CN216155477 U CN 216155477U CN 202122243522 U CN202122243522 U CN 202122243522U CN 216155477 U CN216155477 U CN 216155477U
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The utility model provides a methanol skid-mounted hydrogen production machine, which consists of five skid-mounted bodies, namely a raw material skid, a vaporization overheating reaction skid, a heat exchange cooling separation skid, a pressure swing adsorption skid and an instrument intelligent control skid, wherein the skid-mounted bodies are mutually connected by adopting pipelines; the raw material sledge comprises a raw material tank, a metering tank and a blending tank, and is used for metering, mixing and conveying raw materials; the vaporization overheating reaction sledge comprises a heating furnace and a reactor and is used for vaporization overheating and reaction hydrogen production; the heat exchange cooling separation sledge comprises a heat exchanger, a cooler and a separator and is used for heating raw materials, cooling products and recovering heat; the pressure swing adsorption sledge comprises a pressure swing adsorption device and a hydrogen buffer, wherein the pressure swing adsorption device is used for adsorbing, desorbing and purifying hydrogen, and the hydrogen buffer is used for buffering, stabilizing pressure and outputting hydrogen; the instrument intelligent control sledge is used for controlling the raw material sledge, the vaporization overheating reaction sledge, the heat exchange cooling separation sledge and the pressure swing adsorption sledge. The utility model has the advantages of small occupied area, low consumption, low cost, environmental protection and safety.
Description
Technical Field
The utility model belongs to the technical field of hydrogen production by methanol, and relates to a methanol skid-mounted hydrogen production machine.
Background
The methanol and steam pass through a catalyst under certain temperature and pressure conditions, and under the action of the catalyst, methanol cracking reaction and carbon monoxide shift reaction are carried out to generate hydrogen and carbon dioxide, which is a multi-component and multi-reaction gas-solid catalytic reaction system. The reaction equation is as follows:
CH3OH→CO+2H2(1)
H2O+CO→CO2+H2(2)
CH3OH+H2O→CO2+3H2(3)
h formed by reforming reaction2And CO2Then subjecting the H to Pressure Swing Adsorption (PSA)2And CO2Separating to obtain high-purity hydrogen.
The existing methanol hydrogen production device needs to be provided with a hydrogen compressor and a hydrogen storage tank, and has the disadvantages of large equipment size, large occupied area and high consumption, thereby causing higher production cost.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems, the utility model aims to provide a methanol skid-mounted hydrogen production machine which is small in occupied space, low in consumption, low in cost, environment-friendly and safe.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a methanol skid-mounted hydrogen production machine, which consists of five skid-mounted bodies, namely a raw material skid, a vaporization overheating reaction skid, a heat exchange cooling separation skid, a pressure swing adsorption skid and an instrument intelligent control skid, wherein the skid-mounted bodies are mutually connected by adopting pipelines; the raw material sledge comprises a raw material tank, a metering tank and a blending tank, and is used for metering, mixing and conveying raw materials; the vaporization overheating reaction sledge comprises a heating furnace and a reactor and is used for vaporization overheating and reaction hydrogen production; the heat exchange cooling separation sledge comprises a heat exchanger, a cooler and a separator and is used for heating raw materials, cooling products and recovering heat; the pressure swing adsorption sledge comprises a pressure swing adsorption device and a hydrogen buffer, wherein the pressure swing adsorption device is used for adsorbing, desorbing and purifying hydrogen, and the hydrogen buffer is used for buffering, stabilizing pressure and outputting hydrogen; the instrument intelligent control sledge is used for controlling the raw material sledge, the vaporization overheating reaction sledge, the heat exchange cooling separation sledge and the pressure swing adsorption sledge.
Preferably, a raw material pump is connected to the raw material tank, and the other end of the raw material pump is connected to the heat exchanger.
More preferably, the pressure on the outlet of the raw material pump is 0.95 to 1.1 MPa.
Preferably, a blending pump is connected to the blending tank, and the other end of the blending pump is connected to the raw material tank.
Preferably, the outlet of the heat exchanger is connected with the heating furnace, and the outlet of the heating furnace is connected with the reactor.
More preferably, the heating furnace comprises a convection chamber and a radiation chamber, wherein the convection chamber is a vaporization section, the vaporization temperature is 180-200 ℃, the radiation chamber is a superheating section, and the superheating temperature is 280-320 ℃.
Preferably, the outlet of the reactor is connected to the heat exchanger, which is also connected to the cooler.
Preferably, the outlet of the cooler is connected to the separator, and the outlet of the separator is connected to the blending tank.
The utility model has the following beneficial effects:
the skid-mounted hydrogen production machine optimizes equipment, cancels a hydrogen compressor and a high-pressure gas tank, reduces energy consumption, improves safety, has hydrogen production capacity of 100-2000 standard/hour and floor area of 200-1000 square meters, and has the following advantages:
1. advanced technology, low consumption and low hydrogen cost.
2. Short flow, skid-mounted equipment and small occupied area.
3. The production process is pollution-free, environment-friendly and safe.
Drawings
FIG. 1 is a schematic structural diagram of a methanol skid-mounted hydrogen production machine of the present invention, wherein:
1. a raw material tank, 2, a metering tank, 3, a blending tank, 4, a heating furnace, 5, a reactor, 6, a heat exchanger, 7, a cooler, 8, a separator, 9, a pressure swing adsorption device, 10, a hydrogen buffer, 11, a raw material pump, 12 and a blending pump.
Detailed Description
In order to more clearly illustrate the present invention, the present invention will be described in further detail below with reference to examples and the accompanying drawings. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the utility model.
It is to be understood that the components and connections used in the embodiments may be implemented by conventional techniques, and will not be specifically described below.
Examples
The utility model provides a methanol skid-mounted hydrogen production machine, which consists of five skid-mounted bodies, namely a raw material skid, a vaporization overheating reaction skid, a heat exchange cooling separation skid, a pressure swing adsorption skid and an instrument intelligent control skid, wherein the skid-mounted bodies are mutually connected by adopting pipelines; the raw material sledge comprises a raw material tank 1, a metering tank 2 and a blending tank 3, wherein the raw material tank 1 is connected with a raw material pump 11, the other end of the raw material pump 11 is connected with a heat exchanger 6, the blending tank 3 is connected with a blending pump 12, and the other end of the blending pump 12 is connected with the raw material tank 1 and can be used for metering, mixing and conveying raw materials; the vaporization overheating reaction sledge comprises a heating furnace 4 and a reactor 5 and is used for vaporization overheating and reaction hydrogen production; the heat exchange cooling separation sledge comprises a heat exchanger 6, a cooler 7 and a separator 8 and is used for heating raw materials, cooling products and recovering heat, an outlet of the heat exchanger 6 is connected with the heating furnace 4, an outlet of the heating furnace 4 is connected with the reactor 5, an outlet of the reactor 5 is connected with the heat exchanger 6, the heat exchanger 6 is also connected with the cooler 7, an outlet of the cooler 7 is connected with the separator 8, and an outlet of the separator 8 is connected with the blending tank 3; the pressure swing adsorption sledge comprises a pressure swing adsorption device 9 and a hydrogen buffer 10, wherein the pressure swing adsorption device 9 is used for adsorbing, desorbing and purifying hydrogen, and the hydrogen buffer 10 is used for buffering, stabilizing and outputting hydrogen; the instrument intelligent control sledge is used for controlling the raw material sledge, the vaporization and overheating reaction sledge, the heat exchange cooling separation sledge and the pressure swing adsorption sledge, and the specific control mode can be set and adjusted according to the actual production requirement and is not specifically limited herein.
The comparison between the skid-mounted hydrogen production machine of the present invention and the conventional hydrogen production apparatus is shown in table 1 (no specific statistics are made at the blank spaces).
TABLE 1 comparison of the skid-mounted hydrogen production machine of the present invention with conventional hydrogen production plants
The method for producing hydrogen based on the methanol skid-mounted hydrogen production machine comprises the following steps: metering methanol (with purity of 99.9%) and deionized water according to the percentage of 35% by weight of the methanol and 65% by weight of the deionized water by a metering tank 2, stirring and mixing the methanol and the deionized water by a blending tank 3, conveying the methanol and the deionized water to a raw material tank 1 by a blending pump 12, conveying the methanol and the deionized water to a heat exchanger 6 by a raw material pump 11, conveying the raw material pump 11 with a pressure of 0.95-1.1 Mpa at a outlet pressure of 0.95-1.1 Mpa to a heating furnace 4 for vaporization and superheating after heat exchange to 105-150 ℃, conveying the heating furnace 4 comprising a convection chamber (vaporization section) and a radiation chamber (superheating section), wherein the vaporization temperature is 180-200 ℃, the superheating temperature is 280-320 ℃, conveying the methanol and the deionized water to a reactor 5, reacting and producing hydrogen at the temperature of 280-320 ℃, conveying the product to 95-120 ℃ by the heat exchanger 6, cooling the product to 25-40 ℃ by a cooler 7, outputting the product to a separator 8, separating and drying the hydrogen gas-liquid mixture with purity of 68-72%, conveying the hydrogen mixture to a pressure swing adsorption device 9, obtaining the purified hydrogen with the purity of 99-99.999%, and then buffering the purified hydrogen by a hydrogen buffer 10 and outputting the hydrogen.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all the embodiments of the present invention are not exhaustive, and all the obvious variations or modifications which are introduced in the technical scheme of the present invention are within the scope of the present invention.
Claims (8)
1. The methanol skid-mounted hydrogen production machine is characterized by comprising five skid-mounted bodies, namely a raw material skid, a vaporization overheating reaction skid, a heat exchange cooling separation skid, a pressure swing adsorption skid and an instrument intelligent control skid, wherein the skid-mounted bodies are mutually connected by adopting pipelines; the raw material sledge comprises a raw material tank, a metering tank and a blending tank, and is used for metering, mixing and conveying raw materials; the vaporization overheating reaction sledge comprises a heating furnace and a reactor and is used for vaporization overheating and reaction hydrogen production; the heat exchange cooling separation sledge comprises a heat exchanger, a cooler and a separator and is used for heating raw materials, cooling products and recovering heat; the pressure swing adsorption sledge comprises a pressure swing adsorption device and a hydrogen buffer, wherein the pressure swing adsorption device is used for adsorbing, desorbing and purifying hydrogen, and the hydrogen buffer is used for buffering, stabilizing pressure and outputting hydrogen; the instrument intelligent control sledge is used for controlling the raw material sledge, the vaporization overheating reaction sledge, the heat exchange cooling separation sledge and the pressure swing adsorption sledge.
2. The methanol skid-mounted hydrogen production machine according to claim 1, wherein a raw material pump is connected to the raw material tank, and the other end of the raw material pump is connected to the heat exchanger.
3. The methanol skid-mounted hydrogen production machine according to claim 2, wherein the pressure at the outlet of the raw material pump is 0.95 to 1.1 Mpa.
4. The methanol skid-mounted hydrogen production machine according to claim 1 or 2, wherein a blending pump is connected to the blending tank, and the other end of the blending pump is connected to the raw material tank.
5. The methanol skid-mounted hydrogen production machine according to claim 1, wherein the outlet of the heat exchanger is connected with the heating furnace, and the outlet of the heating furnace is connected with the reactor.
6. The methanol skid-mounted hydrogen production machine according to claim 1 or 5, wherein the heating furnace comprises a convection chamber and a radiation chamber, the convection chamber is a vaporization section, the vaporization temperature is 180-200 ℃, the radiation chamber is a superheating section, and the superheating temperature is 280-320 ℃.
7. The methanol skid-mounted hydrogen production machine according to claim 1 or 5, wherein the outlet of the reactor is connected with the heat exchanger, and the heat exchanger is further connected with the cooler.
8. The methanol skid-mounted hydrogen production machine of claim 1, wherein an outlet of the cooler is connected to the separator, and an outlet of the separator is connected to the blending tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122243522.2U CN216155477U (en) | 2021-09-16 | 2021-09-16 | Methanol skid-mounted hydrogen production machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122243522.2U CN216155477U (en) | 2021-09-16 | 2021-09-16 | Methanol skid-mounted hydrogen production machine |
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| Publication Number | Publication Date |
|---|---|
| CN216155477U true CN216155477U (en) | 2022-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122243522.2U Active CN216155477U (en) | 2021-09-16 | 2021-09-16 | Methanol skid-mounted hydrogen production machine |
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| CN (1) | CN216155477U (en) |
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2021
- 2021-09-16 CN CN202122243522.2U patent/CN216155477U/en active Active
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