||Commercial Utility Flue Gas Desulfurization Systems.
Mobley, J. D. ;
Dickerman, J. C. ;
||Radian Corp., Austin, TX.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Air pollution control equipment ;
Electric power plants ;
Industrial wastes ;
Combustion products ;
Performance evaluation ;
Flue gases ;
Sulfur dioxide ;
Design criteria ;
Flue gas desulfurization ;
Coal fired power plants ;
New source performance standards ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||The article discusses the current status of commercial flue gas desulfurization (FGD) processes applied to coal-fired utility boilers in the U.S. Major objectives of the work were to examine the impacts of the 1979 New Source Performance Standards on FGD system design and operation, and to identify recent improvements in the technology. In the 4 years since promulgation of the NSPS, the wet limestone process has been selected by utilities for 75% of the new plant capacity. During this time, 77 plants representing over 37,000 MW of capacity have selected FGD systems. Several major trends in the design of limestone systems have become fairly standardized. Nearly all new systems are being built with spare absorber modules, to qualify for the NSPS emergency bypass provisions. The predominant absorber design is the open spray tower, due to minimal maintenance requirements. Forced oxygen to produce gypsum solids, which can then be landfilled, is being incorporated in many new units. The spray drying process has been selected for 15% of the new sites in the last 4 years. The remaining throwaway and regenerable systems have not experienced any significant increases in application. Finally, organic acid addition has been successfully demonstrated on limestone systems to improve SO2 removal and system reliability. It is being used at two sites to upgrade older systems.
||Pub. in Mechanical Engineering, v106 n7 p62-71 Jul 84.
|NTIS Title Notes
||Reprint: Commercial Utility Flue Gas Desulfurization Systems.
|PUB Date Free Form
||13B; 68A; 97R
||Not available NTIS