MAF-41 with intermediate-sized molecular sieving effect for highly selective separation of styrene  

作　　者：Fei Wang Jian Zhang 

机构地区：[1]State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences

出　　处：《Science China Chemistry》2019年第10期1265-1266,共2页中国科学（化学英文版）

摘　　要：Styrene(ST)is one of the most important chemicals in the world because of its widely applications in the syntheses of rubbers or thermoplastics.However,ST is mainly produced through catalytic dehydrogenation of ethylbenzene(EB)and the product always contains large amount unreacted EB and by-products toluene(Tol)and benzene(Bz)[1].Because of the similar boiling points and sizes of these molecules,the separation of these mixtures to reach polymer-grade ST of 99.5%purity is extremely challenging.Considering that complicated vacuum/extractive distillation process currently used in industry is highly energy-intensive[2],adsorption separation by using porous adsorbents is a promising alternative method.This method can realize ultrahigh selectivity via molecular sieving effect.However,for complicated mixtures,co-adsorption of smaller molecules makes it difficult to achieve high adsorption selectivity[3].

关 键 词：SEPARATION ADSORPTION SELECTIVITY 

分 类 号：O64[理学—物理化学]