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U.S. Department of Energy
Office of Scientific and Technical Information

Status of flue gas desulfurization systems for industrial boilers

Conference ·
OSTI ID:6794914
EPA contracted with PEDCo to determine the location, status, and operating history of FGD absorbers on industrial boilers. This paper presents: Status of planned or operating systems, system types, design philosophy, and operating experience. The report is limited to systems which are removing sulfur dioxide. In this first quarter 1978 report, data are presented on 135 operational FGD systems at 34 plant sites, controlling SO/sub 2/ emissions from 145 boilers. FGD units at nine plants are under construction or in some stage of planning. The total coverage of this report is therefore 42 plant sites which are listed. Unlike their utility counterparts, operators of industrial boilers are not using lime and limestone as the predominant system. Of the 34 operating systems 20 use sodium salt solution scrubbing, seven use ammonia solution scrubbing, five use double alkali, one uses lime, and one uses limestone. All but two of the systems use a soluble salt to remove the sulfur dioxide. Most use a sodium salt solution; a few use ammonia. For the most part, this solves scaling and plugging problems associated with lime and limestone systems. However, as the need increases to comply with water regulations for dissolved solids and zero discharge, there will be a shift to the sludge producing systems. Note: This paper uses ''sodium solution''. Obviously this should be a solution of a sodium compound and, in one of the process types, the sulfite is used. (LTN)
Research Organization:
PEDCO-Environmental, Inc., Cincinnati, OH (USA)
OSTI ID:
6794914
Report Number(s):
CONF-780485-1
Country of Publication:
United States
Language:
English