Method of burning sulfur-containing fuels in a fluidized bed...

Details Method of burning sulfur-containing fuels in a fluidized bed... Method of burning sulfur-containing fuels in a fluidized bed...

C - Chemistry, Metallurgy

10

L

196/11, 23/370

C10L 10/00 (2006.01) B01J 8/32 (2006.01) F23C 10/10 (2006.01) F23C 10/26 (2006.01)

Patent

CA 1135942

ABSTRACT OF THE DISCLOSURE A method of burning a sulfur-containing fuel in a fluidized bed of sulfur oxide sorbent wherein the overall utilization of sulfur oxide sorbent is increased by comminuting the bed drain solids to a smaller average particle size, preferably on the order of 50 microns, and reinjecting the comminuted bed drain solids into the bed. In comminuting the bed drain solids, particles of spent sulfur sorbent contained therein are fractured thereby exposing unreacted sorbent surface. Upon reinjecting the comminuted bed drain solids into the bed, the newly-exposed unreacted sorbent surface is available for sulfur oxide sorption, thereby increasing overall sorbent utilization.

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