Current use of carbonate rocks and lime for controlling emissions from coal-fired plants in Kentucky

Conference · Mon Mar 01 00:00:00 EST 1993 · Geological Society of America, Abstracts with Programs; (United States)

OSTI ID:5130015

Dever, Jr, G R ^[1]

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1. Univ. of Kentucky, Lexington, KY (United States). Kentucky Geological Survey

Seven coal-fired power plants in Kentucky currently are operating wet-scrubbing systems for flue-gas desulfurization. Atmospheric fluidized-bed combustion (AFBC) units are being used for SO[sub 2] emission control at a petroleum refinery, and a 160-MW utility-scale AFBC demonstration plant is being operated by the Tennessee Valley Authority. A lime-based spray-dryer reactor system has been installed on an industrial boiler, and a spray-dryer system is being tested at a utility pilot-plant facility. Four of the seven power plants operate limestone-based wet-scrubbing systems and require about 885,000 tons of stone per year. Stone is obtained from Mississippian limestones, principally the Ste. Genevieve Limestone, produced at four quarries in Kentucky, Indiana, and Illinois. Scrubber limestone specifications include CaCO[sub 3] content (minimum 88--90%), MgCO[sub 3] content (maximum 4--6%), and grindability (maximum Bond Work Index of 11--12). Three power plants operate lime-based scrubbers, requiring about 250,000 tons of lime per year. The scrubbers currently use (1) lime manufactured from an Ordovician dolomitic limestone, mined in north-central Kentucky, and (2) carbide lime, a chemical-industry byproduct. Fluidized-bed units at the petroleum refinery require about 100,000 tons of sorbent stone per year. The sorbent consists of about equal amounts of Silurian dolomite from Ohio and Ordovician dolomitic limestone from Kentucky. The utility-scale AFBC demonstration plant uses a limestone sorbent and currently requires about 200,000 tons of stone per year. Limestone is obtained from the Ste. Genevieve in western Kentucky.

• OSTI ID: 5130015
• Report Number(s): CONF-9303210-; CODEN: GAAPBC
• Journal Information: Geological Society of America, Abstracts with Programs; (United States), Vol. 25:3; Conference: 27. annual Geological Society of America (GSA) North-Central Section meeting, Rolla, MO (United States), 29-30 Mar 1993; ISSN 0016-7592
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
02 PETROLEUM
01 COAL, LIGNITE, AND PEAT
SORBENT INJECTION PROCESSES
MATERIALS
SULFUR DIOXIDE
AIR POLLUTION ABATEMENT
FOSSIL-FUEL POWER PLANTS
CHALCOGENIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
POWER PLANTS
SULFUR COMPOUNDS
SULFUR OXIDES
THERMAL POWER PLANTS
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
020800 - Petroleum- Waste Management
010800 - Coal
Lignite
& Peat- Waste Management