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CN-122006594-A - Reaction kettle for producing hydrogen from methanol and hydrogen production method

CN122006594ACN 122006594 ACN122006594 ACN 122006594ACN-122006594-A

Abstract

The application discloses a reaction kettle for producing hydrogen from methanol and a hydrogen production method, which comprise a tank body, wherein a supporting frame is arranged in the tank body, a plurality of mutually independent reaction tanks are arranged on the supporting frame, catalysts are filled in the reaction tanks, an inlet end and an outlet end of each reaction tank are respectively provided with an electromagnetic valve, an air inlet pipe and an air outlet pipe are also arranged on the tank body, one end of the air inlet pipe is communicated with an external air source, a flow sensor, a flow regulating valve and a methanol sensor are also arranged on the air inlet pipe, the other end of the air inlet pipe is respectively connected with the inlet end of each reaction tank in parallel, one end of the air outlet pipe is connected with a hydrogen storage device, the other end of the air outlet pipe is respectively connected with the outlet end of each reactor in parallel, and a controller is also arranged on the tank body and is respectively connected with the flow sensor, the flow regulating valve, the methanol sensor and each electromagnetic valve.

Inventors

  • LIU TAO
  • CHEN BIN
  • YANG GUOPING

Assignees

  • 四川醇氢新能源研究院(有限合伙)

Dates

Publication Date
20260512
Application Date
20240814

Claims (10)

  1. 1. The reaction kettle for producing hydrogen from methanol is characterized by comprising a tank body (1); The device comprises a tank body (1), a support frame (2), a plurality of mutually independent reaction boxes (3) and electromagnetic valves (4) arranged at the inlet end and the outlet end of each reaction box (3), wherein the support frame (2) is arranged in the tank body (1), the reaction boxes (3) are filled with catalysts, and the support frame (2) is provided with the mutually independent reaction boxes (3); The device comprises a tank body (1), an air inlet pipe (5), a flow sensor (6), a flow regulating valve (7) and a methanol sensor (8), wherein the air inlet pipe (5) is arranged on the tank body (1), one end of the air inlet pipe (5) is communicated with an external air source, and the air inlet pipe (5) is also provided with the flow sensor (6), the flow regulating valve (7) and the methanol sensor (8); The exhaust pipe (9) is arranged on the tank body (1), one end of the exhaust pipe (9) is connected with the hydrogen storage device, and the other end of the exhaust pipe is respectively connected with the outlet end of each reactor in parallel; The controller (10), the controller (10) set up in on the jar body (1), controller (10) respectively with flow sensor (6), flow control valve (7), methanol sensor (8) and each solenoid valve (4) electricity is connected.
  2. 2. A reaction kettle for producing hydrogen from methanol as claimed in claim 1, wherein each of said reaction tanks (3) is arranged in order of height along the axial direction of said tank body (1).
  3. 3. A reaction kettle for producing hydrogen from methanol according to claim 2, wherein the supporting frame (2) comprises a frame body (201), a plurality of layers of supporting plates (202) are arranged on the frame body (201) along the height direction of the frame body (201), and each reaction box (3) is arranged on the supporting plate (202).
  4. 4. The reaction kettle for producing hydrogen from methanol according to claim 3, wherein the reaction box (3) comprises a box body (301) and a cover plate (302) which are connected with each other, a plurality of guide plates (303) are arranged in the box body (301), each guide plate (303) is in a circular arc structure, each guide plate (303) is arranged in the box body (301) in a concentric circular structure, and a partition plate (304) for partitioning an air inlet and an air outlet is further arranged in the box body (301).
  5. 5. The reaction kettle for producing hydrogen from methanol according to claim 4, wherein a heating module is further arranged on the tank body (1), the tank body (301) is of an annular structure, a heating cavity (11) is arranged in the middle of the tank body, heating holes (12) are formed in each supporting plate (202), and the heating module sequentially penetrates through each heating cavity (11) and each heating hole (12).
  6. 6. The reaction kettle for producing hydrogen from methanol according to claim 1, wherein a mixing box (13) is further arranged on the tank body (1), an outlet end of the mixing box (13) is communicated with the air inlet pipe (5), an inlet end of the mixing box is respectively connected with a water vapor source and a methanol vapor source, a mixing roller (14) is rotatably arranged in the mixing box (13), a plurality of stirring blades are arranged on the mixing roller (14), and the stirring blades are opposite to the inlet end of the mixing box (13).
  7. 7. The reaction kettle for producing hydrogen from methanol according to claim 6, wherein a heating interlayer (16) is arranged on the mixing box (13), a spiral plate (17) is arranged in the heating interlayer (16), and a feeding pipe (18) and a discharging pipe (19) for feeding and discharging heating media are further arranged on the heating interlayer (16).
  8. 8. A hydrogen production method based on the reaction kettle for producing hydrogen from methanol as claimed in any one of claims 1 to 7, characterized by comprising the steps of: Acquiring a flow parameter of an air inlet pipe and a concentration parameter of methanol steam in unit time; Calculating the actual quantity to be processed according to the flow parameter and the concentration parameter; Acquiring processing capacity parameters of a single reaction box, and calculating the number of stages of the reaction box by combining the actual to-be-processed amount; controlling the on-off state of each electromagnetic valve, and opening a reaction box with the same number of stages; and repeating the step of acquiring the flow parameter of the air inlet pipe and the concentration parameter of the methanol vapor in unit time every interval time T.
  9. 9. The method of producing hydrogen as claimed in claim 8, wherein said obtaining process capability parameters of a single reaction tank, in combination with said actual process to be performed, calculates the number of stages of the reaction tank, comprises the steps of: A preset processing capacity parameter list is called; And acquiring a hydrogen recovery ratio parameter, and selecting a processing capacity parameter from the processing capacity parameter list according to the hydrogen recovery ratio parameter.
  10. 10. The method for producing hydrogen according to claim 8, wherein the calculation formula of the actual amount to be processed is a=t 0 ×v×c, wherein T 0 represents a unit time, v represents a flow parameter, c represents a concentration parameter of methanol vapor, the calculation formula of the number of stages is n=a/a 0 , wherein a 0 represents a process capability parameter of a reaction tank, and the time T is 5 to 15min.

Description

Reaction kettle for producing hydrogen from methanol and hydrogen production method Technical Field The application relates to the technical field of methanol hydrogen production equipment, in particular to a reaction kettle for producing hydrogen from methanol and a hydrogen production method. Background The method is characterized in that the method comprises the steps of preparing hydrogen from methanol, heating the mixture of the methanol and the water vapor, introducing the mixture into a reaction kettle, arranging a large number of reaction tubes in the reaction kettle, filling a catalyst in the reaction tubes, and filling heating oil between the reaction tubes; However, in the system for producing hydrogen from methanol by using solar energy, the concentration of methanol vapor and water vapor has certain fluctuation due to the influence of factors such as heat loss of transportation, stability of circulating heat mass temperature and the like, and the quantity of catalysts in a reaction tube is fixed, so that the two cannot be matched, if the concentration of the methanol vapor and the water vapor is too high, the hydrogen recovery ratio is easy to be reduced, the concentration is reduced, the catalysts in the latter half of the reaction tube cannot be utilized, and the adaptability of equipment to the concentration of the methanol vapor and the water vapor is poor. Disclosure of Invention The application mainly aims to provide a reaction kettle for producing hydrogen from methanol and a hydrogen production method, and aims to solve the defect of poor adaptability to the gas concentration of an input end in the prior art. A reaction kettle for producing hydrogen from methanol comprises a tank body; The device comprises a tank body, a support frame, a plurality of reaction tanks, a plurality of electromagnetic valves and a plurality of electromagnetic valves, wherein the support frame is arranged in the tank body; The air inlet pipe is arranged on the tank body, one end of the air inlet pipe is communicated with an external air source, and a flow sensor, a flow regulating valve and a methanol sensor are also arranged on the air inlet pipe; The exhaust pipe is arranged on the tank body, one end of the exhaust pipe is connected with the hydrogen storage device, and the other end of the exhaust pipe is respectively connected with the outlet end of each reactor in parallel; The controller is arranged on the tank body and is electrically connected with the flow sensor, the flow regulating valve, the methanol sensor and the electromagnetic valves respectively. Optionally, along the axis direction of the tank body, the reaction boxes are sequentially arranged according to the height sequence. Optionally, the support frame includes the support body, follows the direction of height of support body be provided with a plurality of layers of backup pad on the support body, each the reaction box set up in the backup pad. Optionally, the reaction tank comprises a tank body and a cover plate which are connected with each other, a plurality of guide plates are arranged in the tank body, each guide plate is in a circular arc structure, each guide plate is arranged in the tank body in a concentric circular structure, and a partition plate for partitioning the air inlet and the air outlet is further arranged in the tank body. Optionally, the tank body is further provided with a heating module, the tank body is in an annular structure, a heating cavity is arranged in the middle of the tank body, each supporting plate is provided with a heating hole, and the heating module sequentially penetrates through each heating cavity and each heating hole. Optionally, a mixing box is further arranged on the tank body, an outlet end of the mixing box is communicated with the air inlet pipe, an inlet end of the mixing box is respectively connected with a water vapor source and a methanol vapor source, a mixing roller is rotatably arranged in the mixing box, a plurality of stirring blades are arranged on the mixing roller, and the stirring blades are opposite to the inlet end of the mixing box. Optionally, be provided with the heating intermediate layer on the mixing box, be provided with the spiral plate in the heating intermediate layer, still be provided with inlet pipe and the discharging pipe that are used for supplying the heating medium business turn over on the heating intermediate layer. Correspondingly, the application also discloses a hydrogen production method based on the reaction kettle, which comprises the following steps: Acquiring a flow parameter of an air inlet pipe and a concentration parameter of methanol steam in unit time; Calculating the actual quantity to be processed according to the flow parameter and the concentration parameter; Acquiring processing capacity parameters of a single reaction box, and calculating the number of stages of the reaction box by combining the actual to-be-processed amount; controll