SO_4^(2-)/ZrO_2-Al_2O_3及载Pt催化剂上正丁烷异构化反应  

Isomerization of n-Butane over the Catalysts of SO_4/ZrO_2-Al_2O_3 and Pt-SO_4/ZrO_2-Al_2O_3

作　　者：张玉玲[1] 毕颖丽[1] 崔湘浩[1] 程铁欣[1] 李文兴[1] 甄开吉[1] 

机构地区：[1]吉林大学化学系,长春130023

出　　处：《高等学校化学学报》2000年第1期112-115,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金! (批准号 :2 9810 4 2 0 31)资助

摘　　要：研究了 SO2 - 4/ Zr O2 -Al2 O3及 Pt-SO2 - 4/ Zr O2 -Al2 O3固体超强酸催化剂与制备条件的关系 ,探讨了催化剂表面结构及晶化程度 ,并在 N2 活化条件下用脉冲色谱法考察了催化剂催化正丁烷异构化反应活性 .结果表明 ,添加 Al可提高催化剂的催化活性 ,降低反应温度 ,载铂对提高催化剂的活性和稳定性更为有效 .The effects of the conditions such as calcination time and temperature for preparing solid superacid catalysts, SO_4/ZrO_2-Al_2O_3(SZA) and Pt-SO_4/ZrO_2-Al_2O_3, on their surface structure and crystallizability were studied. The reaction performance of the catalysts mentioned above for isomerization of n-butane was examined using pulse technique. The results showed that addition of Al_2O_3 could increase the catalytic activity and selectivity, and decrease the reaction temperature for getting the same activity; addition of Pt to SZA could increase the catalyst catalytic activity and stability more effectively.

关 键 词：固体超强酸 正丁烷异构化 催化剂 氧化铝 铂 

分 类 号：TQ426.99[化学工程] O623.11[理学—有机化学]