工程科学学报2015，Vol.37Issue(11)：1513-1519,7.DOI:10.13374/j.issn2095-9389.2015.11.018
快速真空变压吸附制氧的排放气充压过程研究
Study on pressurization with raffinate in a rapid vacuum pressure swing adsorption process for producing oxygen
摘要
Abstract
The equilibrium adsorption characteristics of nitrogen adsorbents were tested and a suitable nitrogen adsorbent was selected for producing oxygen by rapid vacuum pressure swing adsorption. Due to low oxygen concentration in the product obtained by traditional rapid pressure swing adsorption, an improved pressurization step with raffinate was developed and experimentally studied in a rapid vacuum pressure swing adsorption system for producing oxygen. The results show that combined pressurization with raffinate and feed gas can effectively improve the oxygen concentration in the product during the rapid vacuum pressure swing adsorption process. The pressure and oxygen concentration of raffinate for pressurizing are key parameters to influence the oxygen concentration in the product, and a higher concentration oxygen product can be obtained by taking an appropriate pressure and a higher oxygen concen-tration of raffinate. The 90% oxygen can be generated by combined pressurization with raffinate and feed gas during the rapid vacuum pressure swing adsorption process with an adsorption pressure of 240 kPa and a desorption pressure of 60 kPa, and the adsorbent productivity is 325. 08 L·h-1·kg-1 .关键词
制氧/快速变压吸附/充压/吸附剂Key words
oxygen generation/rapid pressure swing adsorption/pressurization/adsorbents分类
化学化工引用本文复制引用
祝显强,刘应书,焦璐璐,杨雄,刘文海..快速真空变压吸附制氧的排放气充压过程研究[J].工程科学学报,2015,37(11):1513-1519,7.基金项目
国家自然科学基金资助项目(51306017) （51306017）
北京市自然科学基金资助项目(3144032) （3144032）
