||Fluidized bed studies of the limestone based flue gas desulfurization process
Skopp, Alvin. ;
Sear, John T. ;
Bertran, Rene R.
||Esso Research and Engineering Co., Linden, N.J. Government Research Div.
||Esso Research and Engineering Co.,
( Air pollution ;
Power plants(Establishments)) ;
( Waste gases ;
( Fluidized bed processes ;
Waste gases) ;
( Limestone ;
Waste gases) ;
Sulfur compounds ;
Sulfur dioxide ;
||Research Triangle Park Library/RTP, NC
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||iv, 114 p. : ill. ; 28 cm.
A conceptual design of a fluidized bed flue gas desulfurization process has been developed based on the ability of coarse lime particles to react with the remove SO2 from combustion flue gases in a fluidized bed. Reduction of the sulfated lime particles formed in such a process has been demonstrated to provide reactivated particles. These particles can again react with the sulfur dioxide in a flue gas to form sulfates. The effluent from reduction has a high SO2 concentration and is suitable for the production of sulfuric acid. Experiments were performed to determine and improve the reactivity of different limestone and dolomitic sorbents in a fluidized bed, and to define conditions for regeneration of the sorbents. A conceptual design of a system was formulated from these data. A coarse particle, high-gas-velocity fluidized bed operating at 1600 f was found the basis of the best design. Regeneration was carried out with a producer-type gas at about 2000 f. Preliminary economics indicated that the system was not applicable in presently operating boilers but a grass-roots power plant might operate competitively. However, other general considerations, such as the large size and location of the equipment in the boiler train, make a commercial process appear unlikely in its present form. Adaption of this process to fluidized bed combustion schemes is promising. (Author)
Colophon title. "August, 1969." "Final Report"--Cover. PB-189 495. Includes bibliographical references (85-86)