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System and method for purifying hydrogen through pressure swing adsorption

A pressure swing adsorption, hydrogen technology, applied in separation methods, hydrogen/syngas production, chemical instruments and methods, etc., can solve problems such as low hydrogen recovery rate

Active Publication Date: 2021-05-07
SOUTHWEST RES & DESIGN INST OF CHEM IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a system and method for purifying hydrogen by pressure swing adsorption, which solves the problem of C atoms (CO, CO 2 and CH 4 ) technical problem of low hydrogen recovery rate when the content requirement is strict

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  • System and method for purifying hydrogen through pressure swing adsorption

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028]In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying ...

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Abstract

The present invention discloses a system and method for purifying hydrogen through pressure swing adsorption. When CO, CO2 and CH4 are required to be strict in product hydrogen, nitrogen is added into raw material gas, the proportion of impurities in the raw material gas is adjusted, the molar content of the product hydrogen is guaranteed to be 99.9% or above, meanwhile, the hydrogen recovery rate is increased, and every time 1% of nitrogen is increased in the flow of the raw material gas, the hydrogen recovery rate can be increased by 0.3-2%; and compared with a conventional pressure swing adsorption hydrogen purification system, the pressure swing adsorption hydrogen purification system has the advantages that the change is small, the brought benefits are obvious, and the pressure swing adsorption hydrogen purification system is not only suitable for newly-built devices, but also suitable for transformation of existing devices.

Description

technical field [0001] The invention belongs to the technical field of pressure swing adsorption gas separation, and in particular relates to a pressure swing adsorption hydrogen purification system and a method thereof. Background technique [0002] Pressure swing adsorption technology is widely used in the separation of various mixed gases, such as the purification of oxygen and nitrogen from air, the purification of carbon dioxide from industrial tail gas rich in carbon dioxide, the purification of carbon monoxide from mixed gases rich in carbon monoxide, and the purification of various Hydrogen is purified from the mixed gas containing hydrogen. As an important industrial gas, hydrogen has a large demand and a wide range of applications. Therefore, the research and development of pressure swing adsorption adsorption hydrogen purification technology is more in-depth. [0003] For example, the patent CN 1984705 B discloses a three-bed pressure swing adsorption system that ...

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Application Information

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IPC IPC(8): C01B3/56B01D53/047
CPCC01B3/56B01D53/047C01B2203/043C01B2203/047C01B2203/0475C01B2203/048Y02P20/151
Inventor 陈健卜令兵王键张宏宇李克兵吴巍周晓烽李小荣
Owner SOUTHWEST RES & DESIGN INST OF CHEM IND
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