不规则形状A301氨合成催化剂反应-扩散模型及实验验证  

A Reaction-diffusion Model for Irregular Shape A301 Ammonium Synthesis Catalyst

作　　者：李涛[1] 徐懋生[1] 朱炳辰[1] 房鼎业[1] 

机构地区：[1]华东理工大学化学工程系,上海200237

出　　处：《四川大学学报（工程科学版）》2002年第5期123-126,共4页Journal of Sichuan University (Engineering Science Edition)

基　　金：国家计委"九五"攻关资助项目 ( 96 550 0 2 0 2 )

摘　　要：测定了不规则形状A30 1氨合成催化剂的形状系数和球化的当量直径及高压下本征动力学方程 ,采用SPSR法测定的曲折因子 ,建立了多组分单一反应等温球形A30 1氨合成催化剂内反应 -扩散一维模型 ,用正交配置法求解了模型 。The shape factor and equivalent diameter of spheroidized irregular A301 ammonium synthesis catalyst were measured. The tortuosity factor of irregular A301 catalyst was determined by SPSRM. So one dimension isothermal multi component reaction diffusion model was established in the irregular A301 ammonium synthesis catalyst based on the intrinsic kinetics under high pressure. The orthogonal collocation method as well as Broyden method was employed to solve the model equations. And the intraparticle diffusion efficiency factor and the concentration distributions of individual component in the catalyst were obtained. The model was verified by the global kinetics data under high pressure obtained in a gradientless reactor.

关 键 词：不规则形状 A301氨合成催化剂 反应-扩散模型 实验验证 正交配置法 内扩散有效因子 浓度分布 

分 类 号：TQ113.2[化学工程—无机化工] TQ42