||Evaluation of Gypsum Crystallization for Limestone Flue Gas Desulfurization.
Chang, J. C. S. ;
Brna, T. G. ;
||Acurex Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Air pollution control equipment ;
Industrial wastes ;
Combustion products ;
Performance evaluation ;
Flue gases ;
Flue gas desulfurization systems ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
The paper gives results of pilot plant tests using a double draw-off crystallizer as the hold tank to improve the gypsum dewatering properties of a forced oxidation limestone flue gas desulfurization process. A hydroclone was used as the size classification device for solids separation and fines removal. Compared with a mixed tank crystallizer, the double draw-off crystallizer resulted in a 45% reduction in free moisture within the filter and a 58% increase in filtration rate.