Application of the Chemical-Looping Concept for Azoetrope Separation  

作　　者：Xin Gao Xueli Geng 

机构地区：[1]School of Chemical Engineering and Technology,Tianjin University&National Engineering Research Center of Distillation Technology&Collaborative Innovation Center of Chemical Science and Engineering(Tianjin),Tianjin 300350,China

出　　处：《Engineering》2021年第1期84-93,共10页工程（英文）

基　　金：The authors acknowledge financial support from the National Key Research and Development Program of China(2018YFB0604900);the National Natural Science Foundation of China(21690084 and 21878219).

摘　　要：The need for the separation of azeotropic mixtures for the production of high-end chemicals and resource recovery has spurred significant research into the development of new separation methods in the chemical industry.In this paper,a green and sustainable method for azeotrope separation is proposed based on a chemical-looping concept with the help of reversible-reaction-assisted distillation.The central concept in the chemical-looping separation(CLS)method is the selection of a reactant that can react with the azeotrope components and can also be recycled by the reverse reaction to close the loop and achieve cyclic azeotrope separation.This paper aims to provide an informative perspective on the fundamental theory and applications of the CLS method based on the separation principle,reactant selection,and case analysis,for example,the separation of alkenes,alkane,aromatics,and polyol products.In summary,we provide guidance and references for chemical separation process intensification in product refining and separation from azeotropic systems for the development of a more sustainable chemical industry.

关 键 词：Chemical-looping AZEOTROPES Reactive distillation Reactants screening Process intensification 

分 类 号：TQ028[化学工程]