Influence of distributed pore size and porosity on MTO catalyst particle performance: Modeling and simulation

摘要: Abstract This modeling study investigates the influence of spatially distributed pore size and porosity on diffusional reactive features inside methanol-to-olefin (MTO) porous catalyst particle. The model developed in this integrates mass, momentum heat balance equations, spatial distribution models, multicomponent diffusion lumped kinetic models. proposed was first validated by using experimental empirical data. simulation results demonstrated that diameter decrease toward particle core is optimal for MTO Subsequent parametric sensitivity analysis indicated temperature plays most significant role effectiveness factor. smaller favors larger ratio ethylene to propylene. Comparing with traditional trial-and-error methods, simple but effective, which valuable design optimization particles.