Investigation of flue gas desulfurization chemical process problems

Technical Report · Wed Aug 01 04:00:00 EDT 1990

OSTI ID:6630438

This report documents the results of investigations of various chemical-related problems with lime/limestone FGD systems. These problems include inadequate SO{sub 2} removal, chemical scale formation within the FGD system, sludge dewatering, FGD system water management, process control, and a collection of other problems which affect the operability and reliability of the FGD system. In general, most of the investigations contain a description of the problem at a particular FGD system; a description of the plant, FGD system, and major equipment; results of the chemical characterization of the FGD system; identification of the causes of the problem and recommendations to improve FGD system performance; and performance data on the system after the changes were made. In certain cases, the economic benefits from eliminating or reducing the severity of a particular problem are presented. A section on the improvement in the solid waste characteristics from a lime dual alkali FGD system is also included. 142 figs., 46 tabs.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (USA); Radian Corp., Austin, TX (USA)
• Sponsoring Organization: EPRI
• OSTI ID: 6630438
• Report Number(s): EPRI-GS-6930
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
AIR POLLUTION CONTROL
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM SULFATES
CARBONATE ROCKS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CONTROL
DESULFURIZATION
ECONOMICS
EQUIPMENT
FLUE GAS
FOSSIL-FUEL POWER PLANTS
GASEOUS WASTES
GYPSUM
LIME-LIMESTONE WET SCRUBBING PROCESSES
LIMESTONE
MINERALS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
RELIABILITY
ROCKS
SCRUBBERS
SCRUBBING
SEDIMENTARY ROCKS
SLUDGES
SULFATE MINERALS
SULFATES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THERMAL POWER PLANTS
WASTES