Recent achievements in facilitated transport membranes for separation processes

Brazilian Journal of Chemical Engineering

H. C. Ferraz¹  L. T. Duarte¹  M. Di Luccio¹  T. L. M. Alves¹  A. C. Habert¹  C. P. Borges¹ 

[1] ,Federal University of Rio de Janeiro Chemical Engineering Program Rio de Janeiro RJ ,Brazil

关键词: Facilitated transport;    Liquid membrane;    Fixed carrier membrane;    Air fractioning;    Propylene separation;    Sugar separation;   

DOI  :  10.1590/S0104-66322007000100010

来源: SciELO

【 摘 要 】

Membrane separation processes have been extensively used for some important industrial separations, substituting traditional methods. However, some applications require the development of new membranes. In this work, we discuss recent progress achieved in this field, focusing on gas and liquid separation using facilitated transport membranes. The advantages of using a carrier species either in a liquid membrane or fixed in a polymer matrix to enhance both the flux and the selectivity of the transport are summarized. The most probable transport mechanisms in these membranes are presented and the improvements needed to spread this technology are also discussed. As examples, we discuss our very successful experiences in air fractioning, olefin/paraffin separation and sugar recovery using liquid and fixed carrier membranes.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License