The occurrence of inorganic elements in various biofuels and its effect on the formation of melt phases during combustion

Sharon Falcone Miller, Bruce G. Miller

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

6 Citations (Scopus)

Abstract

The Pennsylvania State University is performing a feasibility analysis on installing a circulating fluidized bed (CFB) boiler at Penn State's University Park campus for cofiring multiple biofuels and other wastes with coal. Twenty feedstocks are being considered. Chemical fractionation analysis was performed on eleven of the fuels. It is the objective of this paper to present the results of characterizing selected biomass fuels via chemical fractionation. The chemical analysis of the fuels is then used to determine the net ash composition of possible fuel blends and their propensity to form liquid phases during combustion based on thermodynamic modeling. The FactSage equilibrium calculations suggest that a cofire of biofuels with an appropriate non-fouling coal should not pose any problems in a CFB system given that the coal makes up a majority of the thermal input. FactSage consistently predicted K2Si4O9 (l) to be present at 1171K with biofuels having low aluminum levels and significant concentration of alkali earth elements. Only 10% of K2O present in a system was enough to result in the formation of K2Si4O9 (l) at equilibrium that could compromise a CFB system.

Original languageEnglish (US)
Title of host publicationProceedings of the 2002 International Joint Power Generation Conference
Pages873-880
Number of pages8
StatePublished - Jan 1 2002
EventProceedings of the IJPGC 2002 International Joint Power Generation Conference - Scottsdale, AZ, United States
Duration: Jun 24 2002Jun 26 2002

Publication series

NameProceedings of the 2002 International Joint Power Generation Conference

Other

OtherProceedings of the IJPGC 2002 International Joint Power Generation Conference
CountryUnited States
CityScottsdale, AZ
Period6/24/026/26/02

Fingerprint

Biofuels
Fluidized beds
Coal
Fractionation
Ashes
Chemical analysis
Feedstocks
Boilers
Biomass
Earth (planet)
Thermodynamics
Aluminum
Liquids

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Miller, S. F., & Miller, B. G. (2002). The occurrence of inorganic elements in various biofuels and its effect on the formation of melt phases during combustion. In Proceedings of the 2002 International Joint Power Generation Conference (pp. 873-880). (Proceedings of the 2002 International Joint Power Generation Conference).
Miller, Sharon Falcone ; Miller, Bruce G. / The occurrence of inorganic elements in various biofuels and its effect on the formation of melt phases during combustion. Proceedings of the 2002 International Joint Power Generation Conference. 2002. pp. 873-880 (Proceedings of the 2002 International Joint Power Generation Conference).
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Miller, SF & Miller, BG 2002, The occurrence of inorganic elements in various biofuels and its effect on the formation of melt phases during combustion. in Proceedings of the 2002 International Joint Power Generation Conference. Proceedings of the 2002 International Joint Power Generation Conference, pp. 873-880, Proceedings of the IJPGC 2002 International Joint Power Generation Conference, Scottsdale, AZ, United States, 6/24/02.

The occurrence of inorganic elements in various biofuels and its effect on the formation of melt phases during combustion. / Miller, Sharon Falcone; Miller, Bruce G.

Proceedings of the 2002 International Joint Power Generation Conference. 2002. p. 873-880 (Proceedings of the 2002 International Joint Power Generation Conference).

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

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Miller SF, Miller BG. The occurrence of inorganic elements in various biofuels and its effect on the formation of melt phases during combustion. In Proceedings of the 2002 International Joint Power Generation Conference. 2002. p. 873-880. (Proceedings of the 2002 International Joint Power Generation Conference).