- Olefin selective adsorbents and methods of selectively adsorbing olefin using porous materials with redox activity

摘要

The present invention relates to an olefin selective adsorbent in which cupric salt is reduced to cuprous salt and dispersed in an unsaturated metal coordination site in a framework, a surface, or a pore of a porous metal organic framework, and to a method for separating olefin from an olefin/paraffin mixture using the same. The olefin adsorbent of the present invention has high olefin/paraffin selectivity, and high propylene working capacity and repetitive absorption/desorption capability at an operating condition (1-10 atm) of a pressure swing adsorption (PSA) process, or an operating condition (0.1-1 atm) of a vacuum swing adsorption (VSA) process, can separate various olefin/paraffin mixtures such as ethylene/ethane and butylene/butane, and exhibits an effect of producing high purity olefin and paraffin products. The method of the present invention exhibits a high separation effect without high costs, and thus can improve economic feasibility of olefin/paraffin separation.