Advanced concepts in FGD (flue gas desulfurization) technology: The SHU (Saarberg Holter Umwelltechnik) process with cooling tower discharge

Journal Article · Fri Sep 01 00:00:00 EDT 1989 · Journal of the Air and Waste Management Association; (USA)

OSTI ID:6677662

Glamser, J ^[1]; Eikmeier, M ^[2]; Petzel, H K ^[3]

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1. Dresser Industries, Inc., Houston, TX (USA)
2. Saarberg Holter Umwelltechnik (West Germany)
3. Saarbergwerke AG (West Germany)

Flue gas desulfurization (FGD) units have been compulsory for new coal fired power plants in West Germany for about 12 years. The new legislation enacted in 1983, to be met by the middle of 1988, applies not only to new plants but, unlike in the United States, also to existing power plants (>30 MW). The law currently specifies a residual SO{sub 2} emission level of 400 mg/Nm{sup 3} (0.31 lb MM/BTU) for large power plants (>100 MW), but a level of 200 mg/Nm{sup 3} (0.15 lb MM/BTU) is already under discussion in some cases. The legally binding emission standards stipulate that none of the daily averages, calculated on the basis of half hour averages may exceed the concentration allowed. SO{sub 2} removal efficiencies of 90 percent to 95 percent are normally provided. Since 1983, more than 35,000 MW of retrofit FGD units have been installed in Germany to meet this SO{sub 2} standard. The regulations also do not allow for the ponding of calcium sulfite scrubber sludge, but stipulate the production of gypsum from limestone slurry processes. Additionally the regulations require flue gases to have a minimum temperature in the stack of 72{degree}C (162{degree}F) after desulfurization. Treated flue gases do not have to be reheated if discharged via a cooling tower.

• OSTI ID: 6677662
• Journal Information: Journal of the Air and Waste Management Association; (USA), Vol. 39:9
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
54 ENVIRONMENTAL SCIENCES
29 ENERGY PLANNING
POLICY AND ECONOMY
FLUE GAS
DESULFURIZATION
FOSSIL-FUEL POWER PLANTS
POLLUTION REGULATIONS
SULFUR DIOXIDE
REMOVAL
AIR POLLUTION
COAL
ECOLOGICAL CONCENTRATION
FEDERAL REPUBLIC OF GERMANY
STANDARDS
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
ENERGY SOURCES
EUROPE
FOSSIL FUELS
FUELS
GASEOUS WASTES
MATERIALS
OXIDES
OXYGEN COMPOUNDS
POLLUTION
POWER PLANTS
REGULATIONS
SULFUR COMPOUNDS
SULFUR OXIDES
THERMAL POWER PLANTS
WASTES
WESTERN EUROPE
010800* - Coal
Lignite
& Peat- Waste Management
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
290300 - Energy Planning & Policy- Environment
Health
& Safety