Pore network modeling of reaction-diffusion in hierarchical porous particles: The effects of microstructure

摘要: Abstract A general framework based on pore network modeling is presented for simulation of reactive transport in a porous catalyst with hierarchy porosity. The proposed demonstrated the context steady state inside nanoporous particle interlaced macropores that result from use pore-formers. comprehensive parametric study was performed to examine influence structural features namely macroporosity, size ratio, and size, as well properties Damkohler number, net reaction rate particle. results showed depending increasing macroporosity does not necessarily improve catalytic activity It also shown particles lower ratios are more kinetically active. key finding this work demonstrate quantify how microstructure influences reactivity hierarchical particles.