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Modeling of multi gas—solid reactions: A transient model
Author(s) -
Abba I. A.,
Hastaoglu M. A.
Publication year - 1997
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450750312
Subject(s) - transient (computer programming) , hematite , materials science , mass transfer , thermodynamics , reduction (mathematics) , heat transfer , mechanics , particle (ecology) , pellet , computer science , mathematics , physics , metallurgy , composite material , geology , oceanography , geometry , operating system
A rigorous multicomponent multi gas‐solid reaction model is developed. It is based on the particle — pellet model and considers the transient nature of the system, inter‐ and intra‐particle heat and mass transfer and the variation of structural parameters with reaction. The model equations describing the structural changes along with property evaluation schemes are formulated for a general multicomponent system. Simulation results are compared with experimental data for carbon gasification and the reduction of a nickel oxide/hematite mixture. The match between model and experiment was found satisfactory. Both concentration and temperature profiles and other parameters are examined.