Development of economical compact type wet-limestone flue gas desulfurization (FGD) process

Technical Report · Thu Jun 01 04:00:00 EDT 1995

OSTI ID:121438

Kuroda, Hiroshi ^[1]; Nozawa, Shigeru ^[2]; Kaku, Hiroyuki ^[3]

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1. Babcock-Hitachi, Tokyo (Japan)
2. Kure Works, Hiroshima-ken (Japan)
3. Kure Research Lab., Hiroshima-ken (Japan)

In the last quarter of this century Environmental Protection has become a major global issue. For the removal of SO{sub 2} emitted from thermal power plants, the wet limestone-gypsum process has widely been adopted. However, a more noteworthly economical method has been desired for its spreading. Under these circumstances, Babcock-Hitachi has developed a new compact type Flue Gas Desulfurization (FGD) system by improving the conventional type wet limestone-gypsum process incorporating its advantages. The compact absorber was realized by increasing its gas velocity and the flue gas duct has been minimized by adopting a horizontal flow spray tower instead of a vertical flow spray tower which is commonly adopted in the conventional type. Through this a considerable reduction in construction costs have been achieved. The design study of this compact type FGD plant shows that it can be applied not only new plants but also existing power plants, Features of this compact type FGD, pilot plant test results and examples of the design study are introduced in this paper.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (United States)
• OSTI ID: 121438
• Report Number(s): EPRI-TR--105258-Vol.3; CONF-950332--Vol.3
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
AIR POLLUTION CONTROL
DESIGN
DESULFURIZATION
FLUE GAS
FOSSIL-FUEL POWER PLANTS
GYPSUM
LIMESTONE
PERFORMANCE TESTING
PILOT PLANTS
POLLUTION CONTROL EQUIPMENT
SULFUR DIOXIDE