Article ID Journal Published Year Pages File Type
662373 International Journal of Heat and Mass Transfer 2007 6 Pages PDF
Abstract

The recursive mathematical model of the porous media is developed, in which the structure of a porous macroparticle is represented as a system of finer porous particles (microparticles), each of which in turn also consists of a next level system of porous microparticles, etc. The porous structure of microparticles of each level is described by a model of chaotically located spheres. This recursive model is used for developing a mathematical model of chemical reaction in the porous media describing speeds of reagent supply to a reactionary surface as a function of internal structure of a particle, diffusion resistance of microparticles of various levels being accounted. Calculations of a high-temperature pyrolysis process of methane in the porous carbonized samples of wood are carried out. Satisfactory agreement with experimental data is received.

Related Topics
Physical Sciences and Engineering Chemical Engineering Fluid Flow and Transfer Processes
Authors
, ,