文献类型：期刊文献

英文题名：A comparative study of the synthesis approaches and catalytic behaviors of Pt/SO42 -/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] Petroleum Processing Research Center, East China University of Science and Technology, 200237 Shanghai, China; [2] Laboratorio de Catálisis y Materiales, ESIQIE, Instituto Politécnico Nacional, Col. Zacatenco, 07738 México DF, Mexico; [3] Instituto de Física, Universidad Nacional Autónoma de México, A. P.20-364, 01000 México 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：EI(收录号：20081511192262)

语种：英文

外文关键词：Alumina - Crystallization - Platinum - Synthesis (chemical) - Zirconium compounds

摘要：Four Al-promoted Pt/SO42 -/ZrO2{single bond}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. ? 2008 Elsevier B.V. All rights reserved.