噻吩和烃类在Cu(Ⅰ)Y分子筛上的吸附和扩散  

Adsorption and Diffusion of Thiophene and Hydrocarbons on Cu(Ⅰ)Y

作　　者：赖君玲[1,2] 宋丽娟[1,2] 潘明雪[2] 孙兆林[1,2] 

机构地区：[1]中国石油大学化学化工学院,山东东营257061 [2]辽宁石油化工大学辽宁省石油化工重点实验室,辽宁抚顺113001

出　　处：《石油化工高等学校学报》2011年第4期26-28,33,共4页Journal of Petrochemical Universities

基　　金：国家重点基础研究发展规划(973)项目(2007CB216403);国家自然科学基金项目(2054600321076100)

摘　　要：通过液相离子交换法制备出Cu(Ⅰ)Y分子筛,并采用频率响应技术研究噻吩、苯、1-辛烯和正辛烷在Cu(Ⅰ)Y分子筛上的吸附和扩散。结果显示,噻吩和正辛烷在Cu(Ⅰ)Y分子筛上的传质过程的速控步骤为吸附过程,并存在两种不同的吸附过程,结合吸附等温线发现噻吩和Cu(Ⅰ)Y分子筛的作用力明显强于正辛烷的。苯在Cu(Ⅰ)Y分子筛上的传质过程的速控步骤为扩散过程,结合扩散系数,表明苯在Cu(Ⅰ)Y分子筛上的扩散为单一扩散过程。Cu（Ⅰ）Y was prepared by liquid ion-exchange.Thiophene,benzene,1-octene and n-octane adsorption and diffusion on Cu（Ⅰ）Y were studied by frequency response（FR）.Results suggest that the rate-controlling process of the transfer processes in thiophene-Cu（Ⅰ）Y system and n-octane-Cu（Ⅰ）Y system was adsorption process,and there were two different adsorption processes.According to the adsorption isotherms,the interactions between thiophene and Cu（Ⅰ）Y were stronger than that between n-octane and Cu（Ⅰ）Y.According to the diffusion coefficient,the rate-controlling process of the transfer processes is a single diffusion process in the benzene-Cu（Ⅰ）Y system.

关 键 词：噻吩 苯 1-辛烯 正辛烷 频率响应 

分 类 号：TQ425.217[化学工程] O647.3[理学—物理化学]