Acta Phys. -Chim. Sin. ›› 1995, Vol. 11 ›› Issue (01): 9-14.doi: 10.3866/PKU.WHXB19950103

• ARTICLE • Previous Articles     Next Articles

Preparation of CeO2/SiO2 and Kinetics of Isomerization of Butene

Huang Wei, Yu Qi-Quan, Jin Yun   

  1. Department of Chemistry,Peking University,Beijing 100871
  • Received:1993-10-06 Revised:1993-12-27 Published:1995-01-15
  • Contact: Yu Qi-Quan

Abstract:

Catalysts, CeO2/SiO2, were prepared by the impregnated method. The activity of the catalysts at calcination temperature of the catalysts in the range 300-500 ℃ was constant and decreased at 600℃. The catalystic activity in the range of ratio of CeO2 to SiO2, 1/5-1/32, increased linearly. The reaction order with respect to t-2-butene or c-2-butene was first proximate1y at low partial pressures of t-2-butene or c-2-butene.At higher partial pressures of t-2-butene or c-2-butene the kinetics of isomerization of 1-butene. The kinetic parameters were estimated by methods of orthogonal design. The estimated values of adsorption of 1-butene, t-2-butene and c-2-butene are coincided with the experimental values by the pulse method.

Key words: CeO2/SiO2, Kinetics, L-H equation