分数几何对称模型理论分析多孔固体催化剂颗粒中的一级等温串连扩散反应(英文)

Theoretical Analysis of First-Order Isothermal Consecutive Diffusion Reactions in Industrially Porous Catalyst Particles with Fractional Geometry Symmetry Model

在多孔固体催化剂颗粒中的串连扩散反应是非常重要的一类化学反应 ,如水解反应 ,卤化反应和氧化反应等 .分数几何对称模型已用于分析这类反应的一般规律 .为了得到多孔固体催化剂颗粒内非均相催化反应的各因素 ,这个模型将拓宽单颗粒化学反应工程的认识领域 .而且 ,在多孔固体催化剂颗粒填充床中分数参数m和实验数据间的关系Dui=φ2 im +1也已推得 .

The consecutive diffusion reaction in porous catalyst particles is a very important kind of chemical reactions,such as hydrolysis,halogenating,and oxidizing reactions.The fractional geometry symmetry model has been used to analyze these kinds of reactions.And it will widen the recognized area in single particle chemical reaction engineering in order to obtain the various factors for a heterogeneous catalysis reaction in an amorphous porous catalyst particle.Also,the relationship,that is D ui =φ 2 im+1 ,between fractional number m and experimental data in the porous catalyst bed has been obtained.