摘要
通过模拟计算,分析乙苯/苯乙烯塔压力变化对乙苯/苯乙烯、间二甲苯/苯乙烯、对二甲苯/苯乙烯相对挥发度的影响;压力变化对塔釜乙苯含量、间二甲苯含量、对二甲苯含量及塔顶乙苯中苯乙烯浓度的影响。得出降低操作压力,有利于提高粗苯乙烯塔分离效率的结论。
The present paper analyses the relative volatility of ethyl- benzene/styrene and meta- xylene/styrene and para - xylene/styrene is affected by pressure variation in ethyl- benzene/styrene packed tower, and also analyses the fi:actional composition is affected by pressure variation in above packed tower. According to the analysis, such concolusion that seperation efficiency is increasing with pressure dropping can be drawn m ethyl - benzene/styrene packed tower.
出处
《当代化工》
CAS
2007年第3期228-230,共3页
Contemporary Chemical Industry
关键词
苯乙烯精馏
压力
乙苯
二甲苯
styrene rectification
pressure variation
ethyl- benzene
xylene