Effect of Crystallization of Zirconium Hydroxide on the Structure and Isomerization Performance for n-Heptane Hydroisomerization----Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences

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Effect of Crystallization of Zirconium Hydroxide on the Structure and Isomerization Performance for n-Heptane Hydroisomerization

2012-06-19

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WANG Yingjun, LI Yan, SUO Yanhua, WANG Guangfei

(1. Dongbei Petroleum University, Daqing 163318, China; 2. Daqing Refining & Chemical Company, Daqing163712, China)

Abstract: By means of XRD, BET, IR, EM, NH3-TPD techniques, the effect of Zr(OH)4 crystallization on the crystal structure, acidity and the isomerization performance of Ni/WO3-ZrO2 was studied. The results showed that the crystallization of Zr(OH)4 reduced the fraction of tetragonal zirconia. Strong acid sites on the catalyst and the isomerization activity waked with the crystallization of Zr(OH)4 .

Key words: Supported oxides; zirconia; isomerization; n-heptane; Solid super acid

E-mail: wangying-jun@163.com　

Journal of Molecular Catalysis, Vol. 26, Issue 2, 2012, 169-173