单片扩散反应器测定有效扩散系数

根据多孔介质的“尘埃气”模型,用单片扩散反应器测定(?)气体在重整催化剂中的有效努森扩散系数、粘性流动参数及有效分子扩散系数。考察了压片条件对催化剂内孔结构参数及催化剂内传质参数的影响,并比较了工业球形重整催化剂和压片催化剂的孔分布。

Effective Diffusivity Measurements with Single Pellet Diffusion Reactor

Effective Knudsen diffusivity, viscous flow parameters and effective molecular diffusivity of gases in a reforming catalyst were measured with a single pellet diffusion reactor based on the "dusty gas" model. The influence of pelleting on pore structure of the catalyst and mass transfer parameters in the catalyst was examined, and the pore size distribution of the industrial catalyst and the pelleted catalyst was compared.