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用浸渍法制备CeO_2／SiO_2催化剂.催化剂灼烧温度在300－500℃时2－丁烯异构化活性保持一常数；600℃灼烧时活性下降,活载比在1／32－1／5范围内，随活载比增加催化剂活性呈线性增加．在2－丁烯分压较低时，t－2－丁烯及c－2－丁烯异构成1－丁烯的反应级数接近于一级．1－丁烯分压较大时1－丁烯异构成t－2－丁烯及c－2－丁烯的动力学服从于反应物、反应产物吸附的L－H动力学方程．用正交设计法估计动力学参数．1－丁烯、t－2－丁烯及c－2－丁烯吸附热的估计值与脉冲法测定值一致．
The CeO 2 / SiO 2 catalyst was prepared by impregnation method.The isomerization activity of 2-butene was kept constant at the calcination temperature of 300-500 ℃, the activity decreased when calcined at 600 ℃, and the viability ratio was 1 / 32-1 / 5 Within the range, the catalyst activity increases linearly with the increase of the living load ratio. When the partial pressure of 2-butene is low, the reaction order of the isomerization of t-2-butene and c-2-butene to 1-butene is close to one order. The kinetics of the isomerization of 1-butene to t-2-butene and c-2-butene at 1-butene partial pressure is obeyed by L-H kinetics equation of reactant and reaction product adsorption. Estimating kinetic parameters by orthogonal design. The estimates of 1-butene, t-2-butene and c-2-butene heat of adsorption are consistent with those of the pulsed method.