制氢装置变压吸附单元改造  

Revamping of pressure swing adsorption unit in hydrogen generation plant

作　　者：赵姗姗[1] 

机构地区：[1]中国石化燕山分公司炼油一厂,北京102503

出　　处：《石化技术与应用》2012年第6期528-530,共3页Petrochemical Technology & Application

摘　　要：分析了中国石化燕山分公司制氢装置变压吸附单元(PSA)工艺流程、吸附剂、程控阀等存在的问题,并对其进行了改造。结果表明,装置改造后,当进料中含有3 000～3 400 m3/h的低分气时,产氢量可以达到50 000～51 000 m3/h,产品纯度(体积分数)大于99.9%,产品氢中CO平均体积分数由改造前的57.05×10-6降为改造后的6.30×10-6,氢气回收率大于88.00%,尾气中平均含氢体积分数为22.99%。上述各指标均达到设计要求,改造后装置运行平稳。Some problems of process, adsorbent and program control valve in a pressure swing ad- sorption unit （PSA） of hydrogen generation plant of Yanshan Petrochemical Company, SINOPEC, were analyzed and revamped. The results showed that af- ter reforming, hydrogen yield reached 50000- 51 000 m3/h, hydrogen purity reached more than 99.9% （ volume fraction） , the average volume fraction of CO in hydrogen was reduced from 57.05×10^-6to 6.30 ×10^-6, the recovery ratio of hydrogen was above 88.00% ,and the average volume fraction of hydrogen in off - gas was 22.99% when feedstock gas contained 3 000 - 3 400 m3/h hydrogenation tail gas. And all of the results obtained above could meet the design requirements, and the unit run smoothly.

关 键 词：制氢 变压吸附工艺 氢气 产量 装置改造 

分 类 号：TE645[石油与天然气工程—油气加工工程]