In an effort to clarify the causes of agglomeration and fouling in fluidized bed combustion of petroleum coke, a detailed study was made of samples taken from different locations of an industrial-sized CFBC boiler, including deposits formed after 7 and 96 days of operation. It was found that vanadium, the suspected cause of the agglomeration, does not accumulate in fouled regions and that no low melting oxides were present. Neither could any low melting eutectics be expected from the vanadium compounds identified. Therefore, the high concentrations of vanadium in the petroleum coke fuel cannot explain the formation of agglomerates. Fouling is attributed to molecular cramming effect caused by the nearly quantitative conversion of the CaO to CaSO4 and the absence of fuel-derived ash providing inert material, which could contribute discontinuities between the sintered anhydrite grains and prevent massive consolidation of deposits.
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March 1997
Technical Papers
A New Mechanism for FBC Agglomeration and Fouling in 100 Percent Firing of Petroleum Coke Available to Purchase
E. J. Anthony,
E. J. Anthony
CANMET, Natural Resources Canada, Ottawa, Ontario, Canada K1A 0G1
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A. P. Iribarne,
A. P. Iribarne
University of Toronto, Toronto, Ontario, Canada
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J. V. Iribarne
J. V. Iribarne
University of Toronto, Toronto, Ontario, Canada
Search for other works by this author on:
E. J. Anthony
CANMET, Natural Resources Canada, Ottawa, Ontario, Canada K1A 0G1
A. P. Iribarne
University of Toronto, Toronto, Ontario, Canada
J. V. Iribarne
University of Toronto, Toronto, Ontario, Canada
J. Energy Resour. Technol. Mar 1997, 119(1): 55-61 (7 pages)
Published Online: March 1, 1997
Article history
Received:
April 11, 1995
Revised:
December 5, 1996
Online:
November 6, 2007
Citation
Anthony, E. J., Iribarne, A. P., and Iribarne, J. V. (March 1, 1997). "A New Mechanism for FBC Agglomeration and Fouling in 100 Percent Firing of Petroleum Coke." ASME. J. Energy Resour. Technol. March 1997; 119(1): 55–61. https://doi.org/10.1115/1.2794223
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