Vacuum exhaust processes in vacuum pressure-swing adsorption for upgrading methane in ventilation air methane

被引：7

作者：

Li, Yongling ^{[1
]}

Zhang, Chuanzhao ^{[1
]}

Liu, Yingshu ^{[1
]}

Yang, Xiong ^{[1
]}

Meng, Yu ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Thermal Engn, Beijing 100083, Peoples R China

来源：

ADVANCED MECHANICAL DESIGN, PTS 1-3 | 2012年 / 479-481卷

关键词：

VAM; Adsorption; Upgrading; Activated carbon; Vacuum exhaust;

D O I：

10.4028/www.scientific.net/AMR.479-481.260

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Vacuum pressure swing adsorption (VPSA) process with vacuum exhaust step for concentrating ventilation air methane (VAM) was studied experimentally. The effect of vacuum exhaust ratio on methane concentration and recovery are investigated. The results shows that vacuum exhaust step can increase the methane concentration of product gas without increasing pressure. As the ratio increases, the concentrations of methane in both product and effluent firstly increase, and then reach steady state after a certain vacuum exhaust ratio. The process of vacuum exhaust gas recovered can increase methane recovery and concentration, but it will decrease the methane concentration of product when the vacuum exhaust ratio is lower than 1.0. The results could provide reference for the industrial application in VAM enrichment.

引用

页码：260 / 265

页数：6

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