高黏度苯-环己烯体系的萃取精馏分离研究  

Study on extraction distillation separation of high viscosity benzene cyclohexene system

作　　者：张虎飞 何伟[2] 孙超[2] ZHANG Hu-fei;HE Wei;SUN Chao(Tianjin Dagang Oilfield Shengda Technology Co.,Ltd.,Tianjin 300280,China;China National Petroleum Corporation Qinghai Oilfield Branch Testing Company,Jiuquan 816499,China)

机构地区：[1]天津大港油田圣达科技有限公司,天津300280 [2]中国石油天然气集团公司青海油田分公司测试公司,青海海西蒙古族藏族自治州茫崖816499

出　　处：《聚酯工业》2024年第5期27-30,共4页Polyester Industry

摘　　要：探索高黏度体系中物质分离的高效方法对化工领域具有重要意义。采用萃取精馏分离技术对苯与环己烯的混合物进行处理,旨在克服传统蒸馏技术在处理此类高黏度体系时的能耗高和分离效率低等问题。研究中引入低共熔溶剂(DES)作为萃取剂,通过实验和模拟优化分离过程,确立最佳操作条件。实验结果显示,ChCl:Ur、ChCl:LA的相对挥发度分别为2.18、1.96,表明这两种DES在提高苯与环己烯的分离效率方面表现出色。综合可以看出,高黏度苯-环己烯体系的萃取精馏分离研究,成功提高了高黏度苯-环己烯体系的分离效率。这为化工领域处理类似高黏度混合物提供了一种有效的解决方案。Exploring efficient methods for substance separation in high viscosity systems is of great significance in the field of chemical engineering.The use of extraction distillation separation technology for the treatment of a mixture of benzene and cyclohexene aims to overcome the problems of high energy consumption and low separation efficiency of traditional distillation technology in dealing with such high viscosity systems.In the study,low melting point solvents(DES)were introduced as extractants,and the separation process was optimized through experiments and simulations to establish the optimal operating conditions.The experimental results showed that the relative volatilities of ChCl:Ur and ChCl:LA were 2.18 and 1.96,respectively,indicating that these two DES exhibited excellent performance in improving the separation efficiency of benzene and cyclohexene.Overall,it can be seen that the research on extraction and distillation separation of high viscosity benzene cyclohexene system has successfully improved the separation efficiency of high viscosity benzene cyclohexene system.This provides an effective solution for the chemical industry to handle similar high viscosity mixtures.

关 键 词：苯 环己烯 萃取精馏 低共熔溶剂 气液相平衡 

分 类 号：TQ123.6[化学工程—无机化工]