Keywords
Coal, Tar, Soot
Abstract
Coal pyrolysis experiments were performed in the postflame region of a CH4/H2/air flat-flame burner operating under fuel-rich conditions, where the temperature and gas compositions were similar to those in the near-burner region of a large-scale coal-fired furnace. Volatiles released from the coal particles formed a cloud of soot particles at high temperatures in the absence of oxygen. The soot particles in the cloud were collected at different residence times using a water-cooled, nitrogen-quenched suction probe. Test variables included the reaction temperature and coal type. Soot yields in terms of weight percentage of dry ash-free coal were measured based on bulk soot collection experiments. The measured soot yields were related to coal rank, reaction temperature, and residence time. Size changes of soot particles due to soot agglomeration were also observed. The information obtained about coal-derived soot is useful in predictions of radiative heat transfer and pollutant formations in the near-burner region of pulverized coal-fired furnaces.
Original Publication Citation
Ma, J., T. H. Fletcher, and B. W. Webb, "Conversion of Coal Tar to Soot During Coal Pyrolysis in a Post-Flame Environment," Twenty-Sixth Symposium (International) on Combustion, The Combustion Institute, Pittsburgh, PA, 3161-3167 (1996). DOI: 10.1016/S0082-0784(96)80161-5
BYU ScholarsArchive Citation
Fletcher, Thomas H.; Ma, Jinliang; and Webb, Brent W., "Conversion of Coal Tar to Soot During Coal Pyrolysis in a Post-Flame Environment" (1996). Faculty Publications. 7060.
https://scholarsarchive.byu.edu/facpub/7060
Document Type
Peer-Reviewed Article
Publication Date
1996
Publisher
The Combustion Institute
Language
English
College
Ira A. Fulton College of Engineering
Department
Chemical Engineering
Copyright Status
The Combustion Institute
Copyright Use Information
https://lib.byu.edu/about/copyright/