COMBINED INFLUENCE OF CHEMICAL AND PHYSICAL FACTORS UPON COAL PARTICLE TEMPERATURE PROFILES DURING RAPID HEATING PYROLYSIS.

James Freihaut, Alan A. Leff, Francis J. Vastola

Research output: Contribution to conferencePaper

3 Scopus citations

Abstract

General considerations of effects of chemical and physical parameters upon particle temperature profiles during coal pyrolysis are followed by a description of physical model developed for this study. The basic model proposed here for calculation purposes views coal as consisting of two ″fractions.″ - a pyrolytic fraction and an inert fraction. The ″pyrolytic″ fraction is taken to mean the thermally active or responsive material present in the coal matrix. The response is assumed to take the form of a first order expression of the Arrehenius type. The pyrolytic fraction exists uniformly throughout the particle. ″Inert″ is taken to mean the part of the coal matrix which is not subject to thermal decomposition but only to simple heat absorption. Other topics are presented under headings - numerical formulation and solution techniques; results and discussion.

Original languageEnglish (US)
Pages149-157
Number of pages9
StatePublished - Jan 1 1977
Eventat 173rd Natl Meet, Symp on Coal Gasif Kinet - New Orleans, LA, USA
Duration: Mar 21 1977Mar 25 1977

Other

Otherat 173rd Natl Meet, Symp on Coal Gasif Kinet
CityNew Orleans, LA, USA
Period3/21/773/25/77

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Freihaut, J., Leff, A. A., & Vastola, F. J. (1977). COMBINED INFLUENCE OF CHEMICAL AND PHYSICAL FACTORS UPON COAL PARTICLE TEMPERATURE PROFILES DURING RAPID HEATING PYROLYSIS.. 149-157. Paper presented at at 173rd Natl Meet, Symp on Coal Gasif Kinet, New Orleans, LA, USA, .