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Process simulation and optimization of the second extractive distillation unit of C5 hydrocarbons
Author(s): 
Pages: 66-69
Year: Issue:  6
Journal: Chemical Engineering

Keyword:  extractive distillationprocess simulationparameter optimization;
Abstract: 介绍了C5第2萃取精馏单元,采用Dortmund修正的UNIFAC基团贡献法预测二甲基甲酰胺-C5体系气液相平衡,修正了Wilson热力学方程中二元交互作用参数,为二甲基甲酰胺萃取精馏分离C5烃类模拟提供了适用的热力学模型.利用Aspen Plus软件,对第2萃取精馏塔进行了模拟分析,考察了萃取精馏塔主要工艺参数溶剂比(质量比)、回流比、进料位置对分离效果和塔热负荷的影响,确定了适宜的工艺操作条件,为节能降耗提供依据.
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