乙烯-乙烷分离用络合吸附剂的制备及吸附平衡  

Complexation adsorbent for ethylene-ethane separation: preparation and adsorption equilibrium

作　　者：陈乐[1] 刘晓勤[1] 姚虎卿[1] 

机构地区：[1]南京工业大学化学化工学院,江苏南京210009

出　　处：《化工学报》2006年第8期1933-1937,共5页CIESC Journal

基　　金：国家自然科学基金项目(20276029);高等学校博士学科点专项科研基金项目(20040291005).~~

摘　　要：The π-complexation adsorbent AgNO3/γ-Al2O3 was prepared from AgNO3 supported on γ-Al2O3 by the method of impregnation.The adsorbent is used for ethylene-ethane separation.The monolayer dispersion of AgNO3 on γ-Al2O3 was characterized with BET and XRD, and the maximum monolayer dispersion capacity of AgNO3 on γ-Al2O3 was calculated by XRD quantitative phase analysis.The adsorption equilibrium isotherms of ethylene and ethane on this adsorbent were measured at 38℃.The adsorption equilibrium data of ethylene and ethane could be properly fitted by the Langmuir-Freundlich model.The π-complexation adsorbent AgNO3/γ-Al2O3 had high equilibrium selectivity of ethylene,and the selective adsorption ratio of ethylene to ethane at 38℃ and 100 kPa was 10.1, showing its potential for commercial application.The π-complexation adsorbent AgNO3/γ-Al2O3 was prepared from AgNO3 supported on γ-Al2O3 by the method of impregnation. The adsorbent is used for ethylene-ethane separation. The monolayer dispersion of AgNO3 on γ-Al2O3 was characterized with BET and XRD, and the maximum monolayer dispersion capacity of AgNO3 on γ-Al2O3 was calculated by XRD quantitative phase analysis. The adsorption equilibrium isotherms of ethylene and ethane on this adsorbent were measured at 38℃. The adsorption equilibrium data of ethylene and ethane could be properly fitted by the Langmuir-Freundlich model. The π-complexation adsorbent AgNO3/γ-Al2O3 had high equilibrium selectivity of ethylene, and the selective adsorption ratio of ethylene to ethane at 38℃ and 100 kPa was 10.1, showing its potential for commercial application.

关 键 词：AgNO3/γ-Al2O3 浸渍 吸附平衡 乙烯 乙烷 

分 类 号：TQ028.15[化学工程]