采用活性炭和沸石作为吸附剂的两层吸附床的变压-真空变吸附（PVSA）净化绿色能源氢气。
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.
机构信息
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.
Mechanical Engineering Department, College of Engineering, Gulf University, Bahrain; Mechanical and Electrical Engineering College, Hainan University, Haikou, 570228 China.
出版信息
Chemosphere. 2023 Oct;338:139347. doi: 10.1016/j.chemosphere.2023.139347. Epub 2023 Jul 10.
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.
目前，氢气主要通过甲烷重整工艺在炼油厂和石化厂中生产，然后进行水气变换反应阶段。所生产的氢气纯度约为 75%，并通过吸附工艺进一步纯化。在本项目中，将通过使用更有效的吸附剂和周期性的双层活性炭和沸石的压力真空变吸附（PVSA）过程来研究实现纯度水平大于 90%的可行性。还将对氢气净化单元进行设计、模拟和优化。研究结果表明，所提出的工艺可以使输出氢气的纯度达到 97%。
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