Actions for Regenerative process for desulfurization of high temperature combustion and fuel gases. Progress report No. 13, April 1-September 30, 1979 [electronic resource].

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Regenerative process for desulfurization of high temperature combustion and fuel gases. Progress report No. 13, April 1-September 30, 1979 [electronic resource].

Published
Upton, N.Y. : Brookhaven National Laboratory, 1979.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 25 : digital, PDF file
Additional Creators
Brookhaven National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Various types of portland cement were subjected to sulfation/regeneration cycling for application in fluidized bed combustion (FBC) systems. Among them, Type III was the most reactive sorbent for SO/sub 2/ absorption. Sulfated portland cement is highly superior in its resistance to attrition than sulfated limestone which has serious attrition loss problems in fluidized-bed combustors. An isothermal sulfation/regeneration cycle for portland cement Type III pellets has been evaluated. Sulfation reactivity was optimized as a function of the quantity of carbon and water used in preparing the pellets. The sulfation rate was independent of the type of carbon used. Cement kiln dust, a waste product, was also teated as an absorbent for SO/sub 2/. TGA experiments on the extent of regeneration and SO/sub 2/ concentration in the off-gas under various pressures and temperatures are being conducted. This information is of importance to pressurized fluidized bed (PFC) operations. Cycling of Type III portland cement pellets between sulfation and regeneration conditions indicate good maintenance of capacity with little deterioration after 20 cycles. These cycling experiments are continuing. Experiments are being made with a 3'' rotary kiln to provide information on kiln performance under various operating conditions. Among the variables considered are temperature, residence time, extent of regeneration and SO/sub 2/ concentration in the off gas. The feasibility of an alternative regeneration scheme has been studied.
Report Numbers
E 1.99:bnl-51106
bnl-51106
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
01/01/1979.
"bnl-51106"
Albanese, A S; Shen, M S.
Funding Information
AC02-76CH00016
View MARC record | catkey: 13845131