文献类型：期刊文献

中文题名：合成氨弛放气中氨回收工艺的模拟计算

英文题名：The Simulation of Ammonia Recovery Technics from Purge Gas in Ammonia Synthesis Plant

作者：王八月[1];叶启亮[1]

机构：[1]华东理工大学化工学院,上海200237

年份：2008

卷号：34

期号：5

起止页码：40

中文期刊名：安徽化工

外文期刊名：Anhui Chemical Industry

语种：中文

中文关键词：氨回收;Aspen;Plus;填料塔:模拟计算

外文关键词：ammonia recovery ; Aspen Plus ; packed column; simulation

摘要：对中小型合成氨厂弛放气中的氨回收工艺进行了研究,设计了一种以水为吸收剂的双塔吸氨制浓氨水工艺,并采用了Aspen Plus软件对该工艺过程进行模拟计算。分析了吸收剂流量、系统压力及循环比对氨水产品与尾气氨浓度的影响。模拟结果表明,吸收剂的流量为375kmol/hr、系统操作压力为0.45MPa、循环比为0.6时,氨水产品浓度高于20%(wt%),施放气氨浓度低于200ppm。
The reeovery technics of ammonia from purge gas in small and medium scale ammonia sythesis plants was studied in this paper. A two-column absorption system with water as absorbent was designed to produce high concentration ammonia water,and this process was simulated with Aspen Plus. The influence of absorbent flowrate, system operating pressure and reflux ratio on ammonia concentration of ammonia water and purge gas were analyzed. The result indicated that while absorbent flowrate,system operating pressure and reflux ratio was 375kmol/h,0.45MPa and 0.6 respective,the ammonia concentration in ammonia water was more than 20%（wt%） and that in release gas was less than 200 ppm.