Influence of weathering on the combustion behavior of bituminous coals

Sarma V. Pisupati, A. W. Scaroni, R. D. Stoessner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The relative combustion performance of five outcrop bituminous coals (naturally weathered) and five deep-mined (unoxidized) coals is reported. Chemical and structural differences between the weathered and fresh coals and the extent of oxidation were determined. The criteria used for evaluation were ignition temperature, burning profile, char reactivity and combustion efficiency (carbon burnout). The ignition temperatures of the crop coals were equal to or less than those of the corresponding fresh coals in all cases. The devolatilization of the crop coals began at a lower temperature and extended over a wider temperature range than the fresh coals. The combustion efficiency and the reactivity of the chars produced from the crop coals, were higher than those of the corresponding fresh coals. Burning profiles of the crop coals showed a greater weight loss at a lower temperature and the residence time and excess air required for complete combustion were lower than those required for the fresh coals under similar conditions.

Original languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers, Petroleum Division (Publication) PD
PublisherPubl by ASME
Pages87-97
Number of pages11
Volume30
StatePublished - 1990
EventFossil Fuel Combustion Symposium 1990 - Presented at the Thirteenth Annual Energy-Sources Technology Conference and Exhibition - New Orleans, LA, USA
Duration: Jan 14 1990Jan 18 1990

Other

OtherFossil Fuel Combustion Symposium 1990 - Presented at the Thirteenth Annual Energy-Sources Technology Conference and Exhibition
CityNew Orleans, LA, USA
Period1/14/901/18/90

Fingerprint

bituminous coal
Bituminous coal
Weathering
weathering
combustion
Coal
coal
Crops
crop
Ignition
Temperature
temperature
residence time
outcrop
oxidation
Oxidation
Carbon

All Science Journal Classification (ASJC) codes

  • Geology
  • Geotechnical Engineering and Engineering Geology

Cite this

Pisupati, S. V., Scaroni, A. W., & Stoessner, R. D. (1990). Influence of weathering on the combustion behavior of bituminous coals. In American Society of Mechanical Engineers, Petroleum Division (Publication) PD (Vol. 30, pp. 87-97). Publ by ASME.
Pisupati, Sarma V. ; Scaroni, A. W. ; Stoessner, R. D. / Influence of weathering on the combustion behavior of bituminous coals. American Society of Mechanical Engineers, Petroleum Division (Publication) PD. Vol. 30 Publ by ASME, 1990. pp. 87-97
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Pisupati, SV, Scaroni, AW & Stoessner, RD 1990, Influence of weathering on the combustion behavior of bituminous coals. in American Society of Mechanical Engineers, Petroleum Division (Publication) PD. vol. 30, Publ by ASME, pp. 87-97, Fossil Fuel Combustion Symposium 1990 - Presented at the Thirteenth Annual Energy-Sources Technology Conference and Exhibition, New Orleans, LA, USA, 1/14/90.

Influence of weathering on the combustion behavior of bituminous coals. / Pisupati, Sarma V.; Scaroni, A. W.; Stoessner, R. D.

American Society of Mechanical Engineers, Petroleum Division (Publication) PD. Vol. 30 Publ by ASME, 1990. p. 87-97.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - The relative combustion performance of five outcrop bituminous coals (naturally weathered) and five deep-mined (unoxidized) coals is reported. Chemical and structural differences between the weathered and fresh coals and the extent of oxidation were determined. The criteria used for evaluation were ignition temperature, burning profile, char reactivity and combustion efficiency (carbon burnout). The ignition temperatures of the crop coals were equal to or less than those of the corresponding fresh coals in all cases. The devolatilization of the crop coals began at a lower temperature and extended over a wider temperature range than the fresh coals. The combustion efficiency and the reactivity of the chars produced from the crop coals, were higher than those of the corresponding fresh coals. Burning profiles of the crop coals showed a greater weight loss at a lower temperature and the residence time and excess air required for complete combustion were lower than those required for the fresh coals under similar conditions.

AB - The relative combustion performance of five outcrop bituminous coals (naturally weathered) and five deep-mined (unoxidized) coals is reported. Chemical and structural differences between the weathered and fresh coals and the extent of oxidation were determined. The criteria used for evaluation were ignition temperature, burning profile, char reactivity and combustion efficiency (carbon burnout). The ignition temperatures of the crop coals were equal to or less than those of the corresponding fresh coals in all cases. The devolatilization of the crop coals began at a lower temperature and extended over a wider temperature range than the fresh coals. The combustion efficiency and the reactivity of the chars produced from the crop coals, were higher than those of the corresponding fresh coals. Burning profiles of the crop coals showed a greater weight loss at a lower temperature and the residence time and excess air required for complete combustion were lower than those required for the fresh coals under similar conditions.

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Pisupati SV, Scaroni AW, Stoessner RD. Influence of weathering on the combustion behavior of bituminous coals. In American Society of Mechanical Engineers, Petroleum Division (Publication) PD. Vol. 30. Publ by ASME. 1990. p. 87-97