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乙二醇单叔丁醚与乙二醇二叔丁醚的分离 被引量:1

Separation of ethylene glycol mono-tert-butyl ether and ethylene glycol di-tert-butyl ether
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摘要 在实验测定乙二醇单叔丁醚(TMBE)与乙二醇二叔丁醚(TDBE)相平衡数据的基础上,回归得到了Wilson方程的相互作用参数Λ12和Λ21,并利用回归参数的Wilson方程预测了TMBE和TDBE共沸组成随压力降低,TMBE的摩尔分数降低。根据此特性,文中设计了利用差压精馏分离TMBE和TDBE的流程,并在Pro/II流程模拟软件上,建立了差压精馏分离TMBE和TDBE的模型并进行了模拟计算。模拟结果表明:利用差压精馏可分别获得纯度(摩尔分数)大于99%以上的TMBE和TDBE。 Binary VLE data of ethylene glycol mono-tert-butyl ether (TMBE) and ethylene glycol di-tert-butyl ether (TDBE) were experimentally determined to regress the interaction parameter A12and A21 in Wilson equation. As the molar fraction of TMBE in azeotrope decreases with the decrease of pressure based on the prediction of Wilson equation, a pressure swing distillation process was designed to separate TMBE and TDBE and simulated by Pro/II simulation software. The simulation results show that TMBE and TDBE with purity more than 99% (mole fraction) can be obtained separately.
出处 《化学工程》 CAS CSCD 北大核心 2014年第1期15-18,共4页 Chemical Engineering(China)
关键词 乙二醇单叔丁醚 乙二醇二叔丁醚 WILSON方程 差压精馏 分离 ethylene glycol mono-tert-butyl ether ethylene glycol di-tert-butyl ether Wilson equation pressure swing distillation separation
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参考文献7

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