Method and system for recycling sorbent in a fluidized bed combu

Details Method and system for recycling sorbent in a fluidized bed combu Method and system for recycling sorbent in a fluidized bed combu

1994-08-19

1996-09-03

Bennet, Henry A.

Furnaces

Process

Treating fuel constituent or combustion product

110266, 110165R, F23J 300

Patent

active

055513573

ABSTRACT:
A method and system for recycling a sulfur sorbent present in the combustion residue of a circulating, fluidized bed, fossil-fuel combustor is disclosed. The method can comprise the steps of, adding water to the combustion residue, classifying the combustion residue into a fuel ash portion and a hydrated sorbent portion, and returning the hydrated sorbent portion to the circulating, fluidized bed, fossil-fuel combustor.

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Shearer, J. A. et al.., "Hydration Enhanced Sulfation of Limestone and Dolomite in The Fluidized-Bed Combustion of Coal" J. Air Poll. Cont. Assoc., vol. 30, No. 6, pp. 684-688 (Jun. 1980).
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