Definitive sox control process evaluations: limestone, lime, and magnesia FGD processes. Final report Jun 78-Sep 79

Technical Report · Tue Jan 01 04:00:00 EST 1980

OSTI ID:6892284

Anderson, K D; Barrier, J W; O'Brien, W E; Tomlinson, S V

The report gives economic and ground-to-ground energy evaluations of limestone slurry, lime slurry, and magnesia (producing sulfuric acid) flue gas desulfurization (FGD) processes. The lime slurry process, using purchased lime and lime calcined onsite, remains lower in capital investment (90 $/kW for the base-case 500-MW power plant burning 3.5% sulfur coal) than the limestone slurry process (98 $/kW). The limestone slurry process remains lower in annual revenue requirements (4.02 mills/kWh) than the lime slurry process (4.25 mills/kWh). The magnesia process is about one-third higher in capital investment (132 $/kW) and one-fourth high in annual revenue requirements (5.05 mills/kWh including credit for acid sales) than the limestone slurry process, because of absorbent-recovery and acid-producing complexities. The lime slurry process using purchased lime is more economical than the limestone slurry process at low absorbent consumption rates (below about 200 MW or 2% sulfur coal). Onsite lime calcination becomes economical compared to purchased lime for larger power plants and higher coal sulfur levels (about 1000 MW with 3.5% sulfur coal, 750 MW with 5% sulfur coal). The limestone slurry process has the lowest overall (raw material, FGD, and disposal) energy requirements (26% less than lime and 30% less than magnesia).

• Research Organization: Tennessee Valley Authority, Muscle Shoals, AL (USA). Emission Control Development Projects
• OSTI ID: 6892284
• Report Number(s): PB-80-196314
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
AIR POLLUTION CONTROL
ALKALINE EARTH METAL COMPOUNDS
BY-PRODUCTS
CALCIUM COMPOUNDS
CALCIUM OXIDES
CAPITAL
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION PRODUCTS
CONTROL
COST
DESULFURIZATION
DISPERSIONS
ECONOMIC ANALYSIS
ECONOMICS
FLUE GAS
GASEOUS WASTES
INDUSTRIAL WASTES
LIME-LIMESTONE WET SCRUBBING PROCESSES
MAGNESIUM SLURRY SCRUBBING PROCESS
MANAGEMENT
MIXTURES
OPERATING COST
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
PROCESS CONTROL
RECYCLING
REMOVAL
SCRUBBING
SLURRIES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SUSPENSIONS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES