文献类型：期刊文献

英文题名：A comparative study of the synthesis approaches and catalytic behaviors of Pt/SO₄^2-/ZrO₂-Al₂O₃ catalysts for n-hexane hydroisomerization

作者：Yu, G. X.[1];Zhou, X. L.[1];Tang, C.[1];Li, C. L.[1];Wang, J. A.[2];Novaro, O.[3]

机构：[1]E China Univ Sci & Technol, Petr Proc Res Ctr, Shanghai 200237, Peoples R China;[2]Inst Politecn Nacl, ESIQIE, Lab Catalisis & Mat, Mexico City 07738, DF, Mexico;[3]Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico

年份：2008

卷号：9

期号：8

起止页码：1770

外文期刊名：CATALYSIS COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000255381600018)】；

语种：英文

外文关键词：Al2O3 introduction method; n-hexane isomerization; Al-promoted sulfated zirconia; shaping method

摘要：Four Al-promoted pt/SO42 - /ZrO2 - Al2O3 (denoted as PtSZA) catalysts were prepared through different approaches to introduce alumina, including co-precipitation (CP), shaping (SH), suspension (SU) and mixing methods (MI). The effects of alumina incorporation methods to zirconia on the structure, surface acidity, reduction of the sulfur species and catalytic performance of PtSZA catalysts were studied. The results showed that PtSZA from SH introduction of alumina has better crystallization, better Pt promotion effect and higher catalytic performance in n-hexane hydroisomerization compared to the samples from other alumina introductions. Aluminum introduction method is a crucial step to prepare a PtSZA catalyst for n-hexane isomerization. (c) 2008 Elsevier B.V. All rights reserved.