石油化工2011，Vol.40Issue(10)：1105-1109,5.
γ - Al2O3载体孑结构对负载钯催化剂催化C9石油树脂加氢性能的影响
Effect of γ-Al2O3 Pore Structure on Activity of Supported Pd Catalysts in C9 Petroleum Resin Hydrogenation
鲁佳 1马磊 1江大好 1卢春山 1张群峰 1李小年1
作者信息
- 1. 浙江工业大学工业催化研究所绿色化学合成技术国家重点实验室培育基地,浙江杭州310032
- 折叠
摘要
Abstract
Three industrial 7-Al2O3s, namely W203, W217 and W251, were used as supports of Pd/γ-Al2O3 catalysts, in which W203 and W217 were typical mesoporous 7-Al2 O3 supports, and W251 was a special macroporous support. Catalytic activity of the Pd/γ-Al2 O3 catalysts in hydrogenation of C9 petroleum resin was investigated. The 7-Al2O3 supports and the Pd/γ-Al2O3 catalysts were characterized by means of N2 adsorption-desorption, CO chemisorption, SEM, TEM and XRD. The results indicated that the influence of the pore structure of the supported catalysts on the catalytic hydrogenation of C9 petroleum resin was significant and the catalyst with adequate macroporous structure showed higher activity and stability in catalytic hydrogenation of the macromolecules. Average pore sizes of the three industrial -y-Al2O3s, and activity and stability of the Pd/7-Al2O3 catalysts followed with the same order: W203 < W217 < W251. Pd precursor could easily enter into W251 support interior with macropores, so the Pd dispersion was promoted and the catalyst with "egg white" structure formed.关键词
碳九石油树脂/γ-氧化铝载体/催化加氢/钯催化剂Key words
C9 petroleum resin/γ-alumina support/catalytic hydrogenation/palladium catalyst分类
化学化工引用本文复制引用
鲁佳,马磊,江大好,卢春山,张群峰,李小年..γ - Al2O3载体孑结构对负载钯催化剂催化C9石油树脂加氢性能的影响[J].石油化工,2011,40(10):1105-1109,5.
