环己烷在不同催化剂上脱氢的动力学参数

KINETIC PARAMETERS OF DEHYDROGENATION OF CYCLOHEXANE ON VARIOUS CATALYSTS

用改变反应总压和氢与环己烷摩尔比相结合的方法判定了环己烷在不同催化剂上脱氢的动力学模型，并进而确定了有关的动力学参数。结果表明，由于制备方法不同，使催化剂的表面反应和吸附参数均发生变化，从而改变了催化剂的反应特征。

Kinetic models of dehydrogenation of cyclohexane under various catalysis were discriminated by the method combined changing total pressure with changing mole ratio of hydrogen to cyclohexane.Kinetic parameters concerned have further been determined from the models.It is suggested that even though a same amount of platinum is kept in the catalysts,their reaction feature will be changed because of different preparation methods.Change of catalyst behavor may be caused by both the changed parameters of adsorption and surface reaction.