工程科学学报，第37卷，第11期：1513-1519,2015年11月 Chinese Journal of Engineering,Vol.37,No.11:1513-1519,November 2015 D0l:10.13374/j.issn2095-9389.2015.11.018;http://journals..ustb.edu.cn 快速真空变压吸附制氧的排放气充压过程研究 祝显强2》，刘应书3》，焦璐璐”，杨雄四，刘文海” 1)北京科技大学机械工程学院，北京1000832)江苏吴泰气体设备科技有限公司，丹阳212300 3)北京科技大学治金工业节能减排北京市重点实验室，北京100083 ☒通信作者，E-mail:kindy_.yang@163.com 摘要测试了微型制氧吸附剂的平衡吸附特性，在此基础上选出适合快速真空变压吸附制氧的吸附剂.针对传统的单塔 两步快速变压吸附制氧含量低问题，提出了提高产品气氧含量的单塔快速变压吸附制氧的排放气和原料气组合充压流程，并 对该流程进行实验研究.结果表明：在单塔快速真空变压吸附制氧过程中，采用排放气和原料气组合充压流程可以有效提高 产品气氧含量.充压前排放气的压力和氧含量是影响产品气氧含量的关键参数，采取合适的排放气压力和较高氧含量的排 放气可获得更高的产品气氧含量.在吸附和解吸压力分别为240kPa和60kPa时，采用排放气和原料气组合充压的快速真空 变压吸附流程可获得氧体积分数90%的产品气，其产氧率为325.08Lh1kg 关键词制氧：快速变压吸附：充压：吸附剂 分类号TQ028.1 Study on pressurization with raffinate in a rapid vacuum pressure swing adsorption process for producing oxygen ZHU Xian-iang2》,LIU Ying-sh,),JlA0u》,YANG Xiong》,LIU Wen-hai》 1)School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China 2)Jiangsu Oxtek Air Equipment Technology Co.,Ltd.,Danyang 212300,China 3)Beijing Key Laboratory for Energy Saving and Emission Reduction of Metallurgical Industry,University of Science and Technology Beijing,Beijing 100083.China Corresponding author,E-mail:kindy_yang@163.com 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.hkg KEY WORDS oxygen generation:rapid pressure swing adsorption:pressurization:adsorbents 收稿日期：2015-07-02 基金项目：国家自然科学基金资助项目(51306017)：北京市自然科学基金资助项目(3144032)工程科学学报，第 37 卷，第 11 期: 1513--1519，2015 年 11 月 Chinese Journal of Engineering，Vol． 37，No． 11: 1513--1519，November 2015 DOI: 10． 13374 /j． issn2095--9389． 2015． 11． 018; http: / /journals． ustb． edu． cn 快速真空变压吸附制氧的排放气充压过程研究 祝显强1，2) ，刘应书1，3) ，焦璐璐1) ，杨 雄1) ，刘文海1) 1) 北京科技大学机械工程学院，北京 100083 2) 江苏昊泰气体设备科技有限公司，丹阳 212300 3) 北京科技大学冶金工业节能减排北京市重点实验室，北京 100083  通信作者，E-mail: kindy_yang@ 163． com 摘 要 测试了微型制氧吸附剂的平衡吸附特性，在此基础上选出适合快速真空变压吸附制氧的吸附剂． 针对传统的单塔 两步快速变压吸附制氧含量低问题，提出了提高产品气氧含量的单塔快速变压吸附制氧的排放气和原料气组合充压流程，并 对该流程进行实验研究． 结果表明: 在单塔快速真空变压吸附制氧过程中，采用排放气和原料气组合充压流程可以有效提高 产品气氧含量． 充压前排放气的压力和氧含量是影响产品气氧含量的关键参数，采取合适的排放气压力和较高氧含量的排 放气可获得更高的产品气氧含量． 在吸附和解吸压力分别为 240 kPa 和 60 kPa 时，采用排放气和原料气组合充压的快速真空 变压吸附流程可获得氧体积分数 90% 的产品气，其产氧率为 325. 08 L·h － 1·kg － 1 ． 关键词 制氧; 快速变压吸附; 充压; 吸附剂 分类号 TQ028. 1 Study on pressurization with raffinate in a rapid vacuum pressure swing adsorption process for producing oxygen ZHU Xian-qiang1，2) ，LIU Ying-shu1，3) ，JIAO Lu-lu1) ，YANG Xiong1)  ，LIU Wen-hai1) 1) School of Mechanical Engineering，University of Science and Technology Beijing，Beijing 100083，China 2) Jiangsu Oxtek Air Equipment ＆ Technology Co． ，Ltd． ，Danyang 212300，China 3) Beijing Key Laboratory for Energy Saving and Emission Ｒeduction of Metallurgical Industry，University of Science and Technology Beijing，Beijing 100083，China  Corresponding author，E-mail: kindy_yang@ 163． com 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 ． KEY WOＲDS oxygen generation; rapid pressure swing adsorption; pressurization; adsorbents 收稿日期: 2015--07--02 基金项目: 国家自然科学基金资助项目( 51306017) ; 北京市自然科学基金资助项目( 3144032)