Analysis of different pressure thermally coupled extractive distillation column

被引：0

作者：

Sun, Lanyi ^{[1
]}

He, Kang ^{[1
]}

Liu, Yuliang ^{[1
]}

Wang, Qiuyuan ^{[1
]}

Wang, Dingding ^{[1
]}

机构：

[1] State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao266580, Shandong

来源：

Open Chemical Engineering Journal | 2014年 / 8卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Different pressure thermally coupled; Energy saving; Extractive distillation; Propane; Propylene; TAC;

D O I：

10.2174/1874123101408010012

中图分类号：

学科分类号：

摘要：

In this contribution, a different pressure thermally coupled extractive distillation process has been applied on the separation of propylene and propane with aqueous acetonitrile (ACN) solution as entrainer. The novel distillation process integration is the combination of different pressure thermally coupled distillation (DPTCD) and extractive distillation (ED). Both the new process and the conventional process have been simulated in Aspen Plus. Sensitivity analysis has been conducted to select an appropriate compression ratio and other operating parameters based on the priority that the propylene product purity is 99.2 wt % and less energy consumption. The influence of the proposed distillation column on energetic and economic aspects is evaluated through intensive comparison against the conventional stand-alone column, and better performance is achieved with up to 46.02% energy saving and close to 9.7% saving in total annual cost (TAC). © Sun et al.; Licensee Bentham Open.

引用

页码：12 / 18

页数：6

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