石油化工2012，Vol.41Issue(10)：1143-1147,5.
萃取精馏分离邻二甲苯-苯乙烯过程的模拟
Simulation of Separating o-Xylene-Styrene by Extractive Distillation
摘要
Abstract
An extractive distillation process with two columns and N-methyl pyrrolidone as the extractant for separating o-xylene-styrene mixture was simulated by using process simulation software and Wilson model. The effects of feeding positions of the solvent and mixture, reflux ratio, solvent ratio and theoretical plate number on the recovery rate of styrene and the thermal load of the reboiler were studied. The optimum process parameters were obtained by an orthogonal experiment design. Aimed at styrene mass fraction of 99% in the products, under the optimum process conditions of solvent feeding position 6th, o-xylene-styrene mixture feeding position 72nd, solvent ratio 9, reflux ratio 8 and theoretical plate number 140, the recovery rate and thermal load were 95.46% and 4.6117 GJ/h, respectively.关键词
邻二甲苯-苯乙烯分离/萃取精馏/过程模拟Key words
separating o-xylene-styrene/ extractive distillation/ process simulation分类
化学化工引用本文复制引用
李春利,薛明,方静,孙晶晶..萃取精馏分离邻二甲苯-苯乙烯过程的模拟[J].石油化工,2012,41(10):1143-1147,5.
