Process Design for Separating C4 Mixtures by Extractive Distillation

Abstract

Abstract: C4 components are useful in industry and should be separated as individuals. A new process
wasproposed to separate them by extractive distillation, with the advantages of low
equipment investment, energyconsumption and liquid load in the columns. One principle to
improve the extractive distillation process was putforward. Moreover, the analysis of
operation state of the new process was done. There were eight operation statesfound for the
whole process, but only one operation state was desirable. This work provides a way to
effectivelyseparate C4 mixtures and helps the reasonable utilization of C4 resource.

Key words: process design, extractive distillation, C4 mixtures, operation state

摘要： C4 components are useful in industry and should be separated as individuals. A new process
wasproposed to separate them by extractive distillation, with the advantages of low
equipment investment, energyconsumption and liquid load in the columns. One principle to
improve the extractive distillation process was putforward. Moreover, the analysis of
operation state of the new process was done. There were eight operation statesfound for the
whole process, but only one operation state was desirable. This work provides a way to
effectivelyseparate C4 mixtures and helps the reasonable utilization of C4 resource.

关键词: process design;extractive distillation;C4 mixtures;operation state

LEI Zhigang, CHEN Biaohua, LI Jianwei. Process Design for Separating C4 Mixtures by Extractive Distillation[J]. .

雷志刚, 陈标华, 李建伟. 萃取精馏分离C4的过程设计[J]. CIESC Journal.

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