Purification of hydrogen as green energy with pressure-vacuum swing adsorption (PVSA) with a two-layers adsorption bed using activated carbon and zeolite as adsorbent

Xingyong Xie; Omar I Awad; Lili Xie; Ziyi Ge

doi:10.1016/j.chemosphere.2023.139347

Purification of hydrogen as green energy with pressure-vacuum swing adsorption (PVSA) with a two-layers adsorption bed using activated carbon and zeolite as adsorbent

Chemosphere. 2023 Oct:338:139347. doi: 10.1016/j.chemosphere.2023.139347. Epub 2023 Jul 10.

Authors

Xingyong Xie¹, Omar I Awad², Lili Xie³, Ziyi Ge³

Affiliations

¹ National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China; Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huaian, 223003, China. Electronic address: xyxie@hyit.edu.cn.
² Mechanical Engineering Department, College of Engineering, Gulf University, Bahrain; Mechanical and Electrical Engineering College, Hainan University, Haikou, 570228 China.
³ National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China; Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Huaiyin Institute of Technology, Huaian, 223003, China.

PMID: 37437619
DOI: 10.1016/j.chemosphere.2023.139347

Abstract

Today, hydrogen is produced in refineries and petrochemicals using the methane reforming process, followed by a water gas shift reaction stage. The hydrogen produced has a purity of approximately 75%, and is purified further through an adsorption process. In this project, the feasibility of achieving a purity level greater than 90% through the use of a more effective adsorbent and the periodic process of pressure vacuum swing adsorption (PVSA) with a double-layer bed of active carbon and zeolite will be investigated. The design, simulation, and optimization of the hydrogen purification unit will also be conducted. The results of this study indicate that the proposed process can achieve a purity level of up to 97% for the output hydrogen.

Keywords: Activated carbon; Emission reduction; Hydrogen; Swing adsorption.

MeSH terms

Adsorption
Charcoal
Hydrogen*
Vacuum
Zeolites*

Substances

Hydrogen
Zeolites
Charcoal