热冲洗增强再生的变压吸附工艺用于焦炉煤气制氢

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中图分类号：TQ028.1 文献标志码：A DOI：10.3969/j.issn.1003-9015.2025.03.008

Pressure swing adsorption process with enhanced regeneration by hot purging for hydrogen production from coke oven gas

XU Junjie，WU Wenling， GUO Weidong，ZHANG Donghui，LI Wenbin，TANG Zhongl （School of Chemical Engineering and Technology，Tianjin University，Tianjin 3OO35O，China）

Abstract：To improve the performance of the pressure swing adsorption hydrogen production process，an eight bed， twenty-four step pressure swing adsorption process with enhanced regeneration by hot purging was proposed. Activated carbon and 5A molecular sieve were used as adsorbents in this process.Based on the adsorption data of each component in the feed gas onthe adsorbent，simulation studies were conducted using the commercial software Aspen Adsorption. Suitable operating conditions were determined through numerical simulation analysis of internal temperature，pressure，composition and other state parameters，as wellas process performance of the adsorption bed.The research results indicate thatthe introduction of bufer tanks significantly improves the recovery and productivity capacity of hydrogen；Hot purging enhances theregeneration efficiencyof the adsorption bed，thereby improving the purity of hydrogen.The optimal purging gas temperature is 333K.Compared with traditional proceses，the hot purging enhanced regeneration hydrogen production processincreases the purity from 98.781 6% to 99.345 6%，the recovery from 85.36% to 86.01% ，and the productivity and energy consumption are 2.05mol⋅（kgads⋅h）-1 and （204号 16.80kJ⋅mol-1 ：

Key words： pressure swing adsorption;coke oven gas；hydrogen production; numerical simulation; hot purge regeneration

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