Transport and reaction in evolving, disordered composites-I. Gasification of porous solids

N. Shah, J. M. Ottino

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


The problem of modelling the gasification of porous solids is complicated by the interactions between the transport-reaction mechanisms and the dynamics of the complex, evolving morphology of the solid. These mechanisms can be decoupled by assuming that the morphology is perfectly disordered and remains as such throughout the gasification process. Whereas this assumption is undoubtedly simplistic it allows the study of the problem in the range between diffusion control and kinetic control. Throughout this work, the role of the morphology is highlighted whereas other aspects, such as chemistry, have been considerably simplified. The main goals are to study the interactions between the transport, reaction and morphological evolution processes and to emphasize the role of the erosion process in the acceleration of the gasification rate.

Original languageEnglish (US)
Pages (from-to)63-72
Number of pages10
JournalChemical Engineering Science
Issue number1
StatePublished - 1987

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Industrial and Manufacturing Engineering


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