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CN-122014999-A - Storage device for producing hydrogen by crop biomass

CN122014999ACN 122014999 ACN122014999 ACN 122014999ACN-122014999-A

Abstract

The invention discloses a storage device for hydrogen production by crop biomass, which relates to the technical field of hydrogen storage and comprises a tank body, wherein two ends of the tank body are respectively connected with a liquid outlet and an air inlet, a degassing cavity, a buffer cavity and an air adding cavity are formed in the tank body from top to bottom in a separating way by a plurality of sealing plates, a degassing pipe is arranged on one side of the degassing cavity, a plurality of hollow fiber membrane wires are uniformly distributed on the inner side of the degassing cavity along the axial direction of the tank body, the buffer cavity is communicated with the liquid outlet through the hollow fiber membrane wires, a plurality of catalytic blocks are vertically distributed on the inner side of the air adding cavity, an air conveying channel is vertically formed in the catalytic block, the air conveying channel is communicated with the air inlet, an infusion channel is horizontally formed in the catalytic block, and a plurality of catalytic blocks are separated into an S-shaped liquid flow channel by baffle plates. The storage device for producing hydrogen by using crop biomass has high hydrogenation reaction efficiency and high safety.

Inventors

  • SI HUIMIN
  • ZHAO ANLI
  • ZHAO WENJUN
  • QIN LONG

Assignees

  • 河南瑞海科技发展集团有限公司

Dates

Publication Date
20260512
Application Date
20250731

Claims (7)

  1. 1. The storage device for producing hydrogen by using crop biomass is characterized by comprising a tank body (14), wherein two ends of the tank body (14) are respectively connected with a liquid outlet (1) and an air inlet (9), and a degassing cavity (21), a buffer cavity (22) and an air-entrapping cavity (23) are formed in the tank body (14) from top to bottom by a plurality of sealing plates; A degassing pipe (4) is arranged at one side of the degassing cavity (21), a plurality of hollow fiber membrane wires (3) are uniformly distributed on the inner side of the degassing cavity (21) along the axial direction of the tank body (14), and the buffer cavity (22) is communicated with the liquid outlet (1) through the hollow fiber membrane wires (3); The inside of air entrainment chamber (23) is vertical to be laid a plurality of catalytic block (7), gas-supply passageway (11) have been vertically seted up to the inside of catalytic block (7), gas-supply passageway (11) and air inlet (9) intercommunication, infusion passageway (18) have been seted up to the inside level of catalytic block (7), a plurality of catalytic block (7) are separated by baffling board (12) and are formed S type liquid flow channel, S type liquid flow channel 'S bottom is equipped with inlet (8), S type liquid flow channel' S top and buffer chamber (22) intercommunication.
  2. 2. A storage device for hydrogen production from crop biomass as claimed in claim 1, characterized in that a catalyst filler layer (5) is provided in the buffer chamber (22).
  3. 3. The storage device for producing hydrogen from crop biomass according to claim 1, wherein the middle parts of the baffle plate (12) and the third sealing plate (13) are respectively provided with an air vent (25), and the air transmission channels (11) of two adjacent catalytic blocks (7) are communicated through the air vents (25).
  4. 4. A storage device for hydrogen production from crop biomass according to claim 1, wherein the catalytic block (7) is square, the two sets of the infusion channels (18) are arranged, the two sets of the infusion channels (18) are distributed on the inner side of the catalytic block (7) in a staggered manner, and the two sets of the infusion channels (18) are perpendicular to each other.
  5. 5. A storage device for hydrogen production from crop biomass as claimed in claim 1, characterized in that the degassing chamber (21) is provided with a purge tube (24) on the side opposite to the degassing tube (4), the purge tube (24) being connected to a nitrogen source.
  6. 6. The storage device for producing hydrogen from crop biomass according to claim 1, wherein the degassing pipe (4) is sequentially connected with a vacuum pump (15), a gas sensor (16) and a buffer tank (17) through a gas pipeline, the buffer tank (17) is communicated with the gas inlet (9) through a return pipe, and the return pipe is provided with an air pump (20).
  7. 7. A storage device for hydrogen production from crop biomass as claimed in claim 6 wherein the gas inlet (9) is connected to a source of hydrogen gas via a gas supply pipe, and the return pipe and the gas supply pipe are provided with flow meters (19).

Description

Storage device for producing hydrogen by crop biomass Technical Field The invention relates to the technical field of hydrogen storage, in particular to a storage device for producing hydrogen by crop biomass. Background In the integrated system for producing hydrogen and storing hydrogen by using crop biomass, the organic liquid hydrogen storage technology becomes a key link of the system by virtue of high safety and compatibility with the existing infrastructure. However, the existing hydrogenation device still has problems, specifically as follows: The three-phase contact efficiency is low, namely, in a fixed bed reactor, the dispersion effect of hydrogen in an organic solution is poor, and the mass transfer interface between the gas phase, the liquid phase and the solid phase is limited. This directly results in a slow hydrogenation reaction rate, which makes it difficult to meet the continuous output requirements of biomass hydrogen production. Risk of dissolved hydrogen accumulation unreacted hydrogen remains and dissolves in the organic liquid after high pressure hydrogenation. During the storage and transportation process, the dissolved hydrogen can slowly separate out, and when the concentration of the hydrogen in the closed container reaches 4%, explosion hidden danger exists. The prior art relies on flash degassing to solve this problem, but the process is energy intensive. Therefore, it is necessary to provide a storage device for hydrogen production from crop biomass to solve the above problems. Disclosure of Invention (One) solving the technical problems The invention aims to provide a storage device for hydrogen production by crop biomass, which aims to solve the problems of low hydrogenation reaction efficiency and potential safety hazard of the existing organic liquid hydrogen storage device in the background technology. (II) technical scheme The storage device for producing hydrogen from crop biomass comprises a tank body, wherein two ends of the tank body are respectively connected with a liquid outlet and an air inlet, and a plurality of sealing plates are separated from each other from top to bottom to form a degassing cavity, a buffer cavity and an air adding cavity in the tank body; A degassing pipe is arranged at one side of the degassing cavity, a plurality of hollow fiber membrane wires are uniformly distributed at the inner side of the degassing cavity along the axial direction of the tank body, and the buffer cavity is communicated with the liquid outlet through the hollow fiber membrane wires; The inside of the air-adding cavity is vertically provided with a plurality of catalytic blocks, the inside of the catalytic blocks is vertically provided with a gas transmission channel, the gas transmission channel is communicated with the air inlet, the inside of the catalytic blocks is horizontally provided with a transfusion channel, the catalytic blocks are separated by baffle plates to form an S-shaped liquid flow channel, the bottom end of the S-shaped liquid flow channel is provided with a liquid inlet, and the top end of the S-shaped liquid flow channel is communicated with the buffer cavity. Preferably, a catalyst filler layer is arranged in the buffer cavity. Preferably, the middle parts of the baffle plate and the third sealing plate are provided with ventilation holes, and the gas transmission channels of two adjacent catalytic blocks are communicated through the ventilation holes. Preferably, the catalytic block is square, two groups of infusion channels are arranged, the two groups of infusion channels are distributed on the inner side of the catalytic block in a staggered mode, and the two groups of infusion channels are mutually perpendicular. Preferably, a purge pipe is arranged at one side of the degassing cavity opposite to the degassing pipe, and the purge pipe is connected with a nitrogen gas source. Preferably, the degassing pipe is sequentially connected with a vacuum pump, a gas sensor and a buffer tank through a gas pipeline, the buffer tank is communicated with the gas inlet through a return pipe, and the return pipe is provided with an air pump. Preferably, the air inlet is connected with a hydrogen source through an air supply pipe, and the reflux pipe and the air supply pipe are both provided with flow meters. (III) beneficial effects Compared with the prior art, the invention provides a storage device for producing hydrogen by crop biomass, which has the following beneficial effects: 1. This a storage device for crops living beings hydrogen production lets in the gas-supply passageway with hydrogen and makes the even diffusion of ventilative micropore of hydrogen through the catalytic block, simultaneously through seting up the infusion passageway in the catalytic block to increase the three-phase contact interface of hydrogen, organic solution and catalytic machine, improve hydrogenation efficiency, make it carry out continuous operation. 2. This a storage