负载型Ni-Zn-Ce氧化物催化剂上CO_2氧化丙烷脱氢反应研究  

Oxidative dehydrogenation of propane with CO_2 over supported Ni-Zn-Ce oxide catalyst

作　　者：张秀玲[1] 闫明[2] 吕海伟[2] 高帅[1] 

机构地区：[1]大连大学物理科学与技术学院,辽宁大连116622 [2]大连大学环境与化学工程学院,辽宁大连116622

出　　处：《天然气化工—C1化学与化工》2009年第4期35-38,52,共5页Natural Gas Chemical Industry

基　　金：国家自然科学基金资助项目(20476013)

摘　　要：以γ-Al2O3为载体,采用浸渍法制备系列Ni-Zn-Ce氧化物催化剂,在常压连续流动固定床微反应器上研究了上述催化剂对CO2氧化丙烷脱氢制丙烯反应的催化性能。采用BET、SEM和XRD等分析测试技术对催化剂形貌和结构进行表征。实验结果表明:催化剂中各成分的作用不同,NiO能明显提高丙烷的转化率,适量的ZnO可提高丙烯的选择性,CeO2能显著改善催化剂的抗积炭能力。A series of γ-Al2O3 supported Ni-Zn-Ce oxides for oxidative dehydrogenation of propane with carbon dioxide to propene were prepared by impregnation method. The catalytic performances were studied in a continuous flow fixed-reactor at atmospheric pressure. The catalyst samples were characterized by BET, SEM and XRD techniques. The results showed that different components of the catalyst had different effects on the reaction： NiO promoted the conversation of propane obviously, ZnO in the right amounts increased the selectivity to propone, and CeO2 improved the capacity of resistance to carbon deposition on catalyst remarkably.

关 键 词：二氧化碳 丙烷 丙烯 氧化脱氢 Ni-Zn-Ce氧化物 催化剂 

分 类 号：TQ426.8[化学工程]