Model of the transport phenomena in solids with bidispersed pores. [Diffusion without and with reaction into bidisperse pore solids]

Journal Article · Mon Sep 01 04:00:00 EDT 1980 · AIChE J.; (United States)

DOI:https://doi.org/10.1002/aic.690260512· OSTI ID:6223430

Neogi, P; Ruckenstein, E

The transient response of bidisperse porous pellets can be classified into two groups: first, only diffusion takes place and the steady-state or equilibrium profiles of concentrations are respectively linear or uniform in the macropores; second, both diffusion and reaction occur and the steady-state concentration profile in the macroparticle is nonlinear. The conditions under which the point sink approximation is valid in both cases are given.

• Research Organization: State Univ. of New York, Buffalo
• OSTI ID: 6223430
• Journal Information: AIChE J.; (United States), Journal Name: AIChE J.; (United States) Vol. 26:5; ISSN AICEA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CHEMICAL REACTIONS
DIFFUSION
EQUATIONS
EQUILIBRIUM
MATERIALS
MATHEMATICAL MODELS
MICROSPHERES
PARTICLE SIZE
PERMEABILITY
POROSITY
POROUS MATERIALS
QUANTITY RATIO
SIZE
SOLIDS
STEADY-STATE CONDITIONS