Sulfur dioxide emission control by furnace injection of a dry sorbent. Phase III. Economic assessment. Final report
An economic analysis evaluating furnace injection of dry calcium-based sorbent to reduce SO/sub 2/ emissions from lignite-fired utility boilers indicates economic advantage for purchase of lime with on-site pressure hydration. This sorbent processing option requires capital expenditure for on-site hydration equipment, but those costs are more than offset by the lower unit cost of lime (relative to purchased pressure-hydrate). On-site calcination is economically viable only for retrofits requiring greater than 500 tons per day of lime. The economic advantage for purchase of lime with on-site hydration exists for both easy and difficult retrofit situations and for retrofits designed to achieve either 50 or 70% SO/sub 2/ removal. The study also includes an economic sensitivity analysis evaluating several system parameters. Included are boiler size, boiler capacity factor, coal sulfur content, sorbent unit cost and calcium utilization efficiency. The final portion of the study provides a comparison of sorbent injection SO/sub 2/ removal costs with the cost of SO/sub 2/ control by wet flue gas desulfurization (FGD). For 1.2% sulfur, lignite-fired boilers retrofit of furnace sorbent injection to obtain SO/sub 2/ control equivalent to EPA's New Source Performance Standard will cost at least $600 per ton SO/sub 2/ less than FGD.
- Research Organization:
- Energy and Environmental Research Corp., Irvine, CA (USA)
- DOE Contract Number:
- AC21-84FC10616
- OSTI ID:
- 5363058
- Report Number(s):
- DOE/FC/10616-2130; ON: DE86015095
- Country of Publication:
- United States
- Language:
- English
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Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
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54 ENVIRONMENTAL SCIENCES
ADSORBENTS
AIR POLLUTION CONTROL
ALKALINE EARTH METALS
BROWN COAL
CALCIUM
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
CONTROL
DESULFURIZATION
ECONOMIC ANALYSIS
ECONOMICS
EFFICIENCY
ELEMENTS
ENERGY SOURCES
FLUE GAS
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUELS
FURNACES
GASEOUS WASTES
LIGNITE
MATERIALS
METALS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POWER PLANTS
REMOVAL
RETROFITTING
SULFUR COMPOUNDS
SULFUR CONTENT
SULFUR DIOXIDE
SULFUR OXIDES
SYSTEMS ANALYSIS
THERMAL POWER PLANTS
WASTES