The first project completed in the Clean Coal Technology Program

Journal Article · · PETC Review (Pittsburgh Energy Technology Center); (United States)

OSTI ID:5326641

An independent assessment of the first project to be completed under the USDOE's Clean Coal Technology Program has been published by the Office of Clean Coal Technology. The project is known officially as [open quotes]The Demonstration of an Advanced Cyclone Coal Combustor, with Internal Sulfur, Nitrogen, and Ash Control for the Conversion of a 23-mmBtu/hr Oil-Fired Boiler to Pulverized Coal[close quotes] and was carried out by the Coal Tech Corp. at the site of the Keeler/Dorr-Oliver Boiler Co. in Williamsport, PA. The project was a 3-year demonstration-scale test of a 30-mmBtu/hr (8.8-MW) air-cooled ceramic slagging combustor retrofitted to a horizontal 23-mmBtu/hr (6.74-MW) oil- or natural-gas-fired Keeler/Dorr-Oliver DS-9 boiler. During the project, the combustor was operated for a total of 900 hours on oil, gas, and dry pulverized coal. One third of the operational time was on coal and 125 tons (113 tonnes) were consumed. An economic analysis of the advanced slagging combustor was developed by PETC based on a comparison of two hypothetical approaches to upgrading a 15-year-old, 100-mmBtu/hr (29.3-MW) oil-fired steam generating plant. One approach includes continued oil-fired operation with installation of a sodium-based scrubber to reduce SO[sub 2] emissions. The other approach is to retrofit with the demonstrated cyclone combustor, switching to coal as fuel. For the latter approach, a sodium-based scrubber and fabric filter baghouse are included in the retrofit so that emissions of SO[sub 2], NO[sub x], and particulates are comparable for the two approaches. The fuel price differential between coal and oil/gas determines the point at which the new technology will be cost-competitive with the environmental upgrade and continued oil firing. A fuel price differential large enough to make the demonstrated technology economically competitive is expected to be realized in the current decade.

• OSTI ID: 5326641
• Journal Information: PETC Review (Pittsburgh Energy Technology Center); (United States), Journal Name: PETC Review (Pittsburgh Energy Technology Center); (United States) Vol. 9; ISSN PERVE7
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
20 FOSSIL-FUELED POWER PLANTS
200104 -- Fossil-Fueled Power Plants-- Components
200200 -- Fossil-Fueled Power Plants-- Waste Management
AIR POLLUTION CONTROL
CARBONACEOUS MATERIALS
CHALCOGENIDES
COAL
COMBUSTION CONTROL
COMBUSTORS
CONTROL
CYCLONE COMBUSTORS
DESIGN
ECONOMIC ANALYSIS
ECONOMICS
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
POLLUTION CONTROL
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES