Reforming-separating integrated low-pressure hydrogen production system and hydrogen production method thereof

A hydrogen production system, an integrated technology, applied in hydrogen separation, chemical instruments and methods, hydrogen, etc., can solve the problems of complex hydrogen production process, complex hydrogen production system, and inability to realize cycle hydrogen production, and achieve optimal layout structure, High yield, realize the cleaning effect of the whole process

Active Publication Date: 2020-03-31
中科液态阳光(苏州)氢能科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a reforming and separating integrated reaction device, to solve the problem that the reformer of methanol steam, hydrogen separation and water gas reforming are three independent equipment , leading to complex problems in the hydrogen production system
[0009] At the same time, it also provides a low-pressure hydrogen method to solve the problem that the current hydrogen production process is complicated and cannot achieve circular hydrogen production.

Method used

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  • Reforming-separating integrated low-pressure hydrogen production system and hydrogen production method thereof
  • Reforming-separating integrated low-pressure hydrogen production system and hydrogen production method thereof
  • Reforming-separating integrated low-pressure hydrogen production system and hydrogen production method thereof

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Embodiment 1

[0046] Such as figure 1 figure 2 As shown, a reforming and separation integrated low-pressure hydrogen system includes a reforming separation device 3 , a three-phase heat exchange device 2 , an air compressor, a steam trap, a refrigerator 5 and a carbon dioxide liquefaction device 4 .

[0047] The reforming separation device 3 includes an upper reaction chamber 31 and a lower reaction chamber 32, the upper reaction chamber 31 and the lower reaction chamber 32 are communicated, the upper reaction chamber 31 is filled with a first catalytic filler, and the lower reaction chamber 32 filling the second catalytic packing;

[0048] The upper reaction chamber 31 is provided with a first inlet for inputting methanol water vapor and a first outlet for outputting carbon dioxide mixed residual gas, and a hydrogen absorption pipe 34 is inserted in the upper reaction chamber 31, and the hydrogen absorption pipe 34 is for The mixed gas in the upper reaction chamber 31 is subjected to hy...

Embodiment 2

[0067] A low-pressure hydrogen method is provided, which adopts the above-mentioned reforming and separation integrated low-pressure hydrogen system, including the following steps:

[0068] S1. The liquid pump 1 sends methanol water into the methanol water vapor pipe, and the pump pressure is 2-5 MPa. The methanol water is heated and vaporized into methanol water vapor and enters the upper reaction chamber 31 of the reforming separation device 3. The methanol water vapor is on the upper Reaction chamber 31 performs reforming reaction to generate mixed gas of hydrogen, carbon dioxide and carbon monoxide, which is a multi-component, multi-reaction gas-solid catalytic reaction system;

[0069] The reaction equation is: CH 3 OH→CO+2H 2 ;(Reversible reaction)

[0070] h 2 O+CO→CO 2 +H 2 ;(Reversible reaction)

[0071] CH 3 OH+H 2 O→CO 2 +3H 2 ;(Reversible reaction)

[0072] 2CH 3 OH→CH 3 OCH 3 +H 2 O; (side reaction)

[0073] CO+3H 2 →CH 4 +H 2 O; (side reaction)...

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Abstract

The invention relates to a reforming-separating integrated low-pressure hydrogen production system, comprising a reforming and separating device, a three-phase heat exchange device, an air compressor,a steam trap, a refrigerating machine and a carbon dioxide liquefying device, wherein the pump pressure of a liquid pump is 2-5 MPa; a pressure controlled by the air compressor is in a range of 5-30MPa; and a temperature controlled by the refrigerating machine is in a range of -35 to 30.8 DEG C. The low-pressure hydrogen production method comprises the following steps: carrying out a reforming reaction on methanol steam in an upper reaction cavity, and then carrying out hydrogen separation on a gas mixture by using a hydrogen absorption pipe; preparing liquid carbon dioxide and hydrogen mixed residual gas from carbon dioxide mixed residual gas in a carbon dioxide separator, wherein the proportion of the reformed mixed gas is close to the proportion of the gas mixture of hydrogen, carbondioxide and carbon monoxide; and performing hydrogen separation operation on the reformed mixed gas and the gas mixture of hydrogen, carbon dioxide and carbon monoxide via the hydrogen absorption pipe. According to the invention, gas in the system is circularly purified, theoretical yield can reach 100%, and hydrogen yield is greater than or equal to 95%.

Description

technical field [0001] The invention relates to a reforming and separation integrated low-pressure hydrogen system and a hydrogen production method thereof. Background technique [0002] Hydrogen energy is the most ideal energy source in the 21st century. As a fuel for automobiles, it is easy to start at low temperature, and has little corrosion effect on the engine, which can prolong the service life of the engine. Because hydrogen and air can be mixed evenly, the carburetor used in general cars can be completely omitted, thereby simplifying the structure of existing cars. Even more interesting, just add 4% hydrogen to gasoline. Using it as a vehicle engine fuel can save fuel by 40%, and there is no need to make much improvement to the gasoline engine. Hydrogen fuel cell as power generation system. [0003] No pollution, the fuel cell has no pollution to the environment. It uses electrochemical reaction instead of combustion (gasoline, diesel) or energy storage (battery...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/32C01B3/38C01B3/50
CPCC01B3/323C01B3/38C01B3/50C01B2203/1223C01B2203/1241C01B2203/061C01B2203/0233
Inventor 岳锌韩涤非陈芳李佳毅赵纪军岳野王集杰
Owner 中科液态阳光(苏州)氢能科技发展有限公司
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