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Method for preparing hydrogen satisfying automotive hydrogen standard from biomass gas

A biomass gas and hydrogen technology, applied in chemical instruments and methods, using solid contact hydrogen separation, hydrogen, etc., can solve the problem of not being able to obtain hydrogen that satisfies hydrogen fuel cells, and achieve the effect of increasing the content

Active Publication Date: 2019-12-27
盛卫东 +2
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, it is impossible to obtain hydrogen that meets the requirements of hydrogen fuel cells by using existing process steps.

Method used

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  • Method for preparing hydrogen satisfying automotive hydrogen standard from biomass gas
  • Method for preparing hydrogen satisfying automotive hydrogen standard from biomass gas
  • Method for preparing hydrogen satisfying automotive hydrogen standard from biomass gas

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preparation example Construction

[0093] The preparation method of the present invention will be further described in detail in conjunction with specific examples below. It should be understood that the following examples are only for illustrating and explaining the present invention, and should not be construed as limiting the protection scope of the present invention. All technologies realized based on the above contents of the present invention are covered within the scope of protection intended by the present invention.

[0094] The experimental methods used in the following examples are conventional methods unless otherwise specified; the reagents and materials used in the following examples can be obtained from commercial sources unless otherwise specified.

Embodiment 1

[0096] Biomass gas is provided by Gaoyou Linyuan Technology Development Co., Ltd., and its composition (vol%, dry basis) is shown in the table below.

[0097] components H 2

CO CO 2

N 2

CH 4

cHm O 2

total content 14.8 37.4 15.4 15.9 14.4 1.30 0.80 100

[0098] Flow: 4500Nm 3 / h;

[0099] Pressure: ~4KPaG;

[0100] Temperature: 40°C;

[0101] The impurity content is as follows:

[0102] components h 2 S

NH 3

naphthalene tar and dust mg / Nm 3

～200 ～135 ～100 ～10

[0103] This embodiment provides a method for preparing hydrogen meeting the vehicle hydrogen standard from biomass gas, and the specific process is as follows:

[0104] A reciprocating compressor will be used to pressurize the biomass gas to 1.2MPa; during the pressurization process, a large amount of organic components in the biomass gas can be compressed to remove some impurities such as tar and naphthalene to ensure th...

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Abstract

The invention provides a method for preparing hydrogen satisfying the automotive hydrogen standard from biomass gas. According to the method, fuel gas generated by a fixed bed biomass gasification furnace is used as a raw material; the method comprises the steps of compression treatment, deoiling and naphthalene removal treatment, CO conversion treatment, coarse desulfurization treatment, deamination treatment, pressure swing adsorption treatment, fine desulfurization treatment and dehydration treatment. The CO content of the hydrogen is less than 0.2 [mu]mol / mol, the total sulfur content of the hydrogen is less than 0.004 [mu]mol / mol, and the hydrogen yield is ten millions cubic meters per year. The method has the advantages of advanced and reliable process technology, high biomass gas utilization and energy utilization rate, high device self-control degree, clean production process and the like, and accords with national industrial policies, energy policies and environmental protection policies.

Description

technical field [0001] The invention belongs to the technical field of biomass gas preparation, and in particular relates to a method for preparing hydrogen meeting the vehicle hydrogen standard from biomass gas. Background technique [0002] my country is a large agricultural country, and the problem of excess straw is serious. Many regions no longer need to use straw as the main fuel. In order to rush to harvest, the excess straw is often burned directly. During the burning of straw in the field, a large amount of smoke is generated, which has a serious impact on the atmospheric environment. [0003] Straw utilization methods mainly include: straw combustion for power generation, straw solidification, production of fuel ethanol from straw, production of composite boards, straw papermaking, comprehensive utilization, etc. At present, straw utilization is still dominated by primary utilization, and combustion power generation is the main utilization method. [0004] Biomass...

Claims

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Application Information

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IPC IPC(8): C01B3/16C01B3/56
CPCC01B3/16C01B3/56C01B2203/042C01B2203/047C01B2203/0475C01B2203/048C01B2203/1047C01B2203/1205C01B2203/1258
Inventor 盛卫东季伟宋欣
Owner 盛卫东
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