Ikelic - Alliance Digital Repository

STATUS OF COAL PROJECTS (Underline denotes changes since June 1994)
COMMERCIAL AND R&D PROJECTS (Continued)
WABASH RIVER COAL GASIFICATION REPOWERING PROJECT - Destec Energy, Inc. and PSI Energy Inc. (C-614)
Located in West Terre Haute, Indiana, the project will repower one of the six units at PSI Energy's Wabash River power station.
The repowering scheme will use a single train, oxygen-blown Destec gasification plant and the existing steam turbine in a new in
tegrated gasification combined cycle configuration to produce 262 megawatts of electricity from 2353 tons per day of high sulfur Il
linois basin bituminous coal. The plant will be designed to substantially out-perform the standards established in the Clean Air Act
Amendments for the year 2000. The demonstration period for the project will be 3 years after plant startup.
The CGCC system will consist of Destec's two-stage, entrained-flow coal gasifier, a gas conditioning system for removing sulfur
compounds and particulates; systems or mechanical devices for improved coal feed; a combined-cycle power generation system.
wherein the conditioned synthetic fuel gas is combusted in a combustion turbine generator, a gas cleanup system; a heat recovery
steam generator, all necessary coal handling equipment; and an existing plant steam turbine and associated equipment.
The demonstration will result in a combined-cycle powerplant with low emissions and high net plant efficiency. The net plant heat
rate for the new, repowered unit will be 9,030 BTU per kilowatt-hour, representing a 20 percent improvement over the existing unit
while cutting SO by greater than 98 percent and NO emissions by greater than 85 percent.
The project was selected for funding under Round IV of the U.S. Department of Energy's (DOE) Clean Coal Technology
Program, and is slated to operate commercially following the demonstration period. DOE has agreed to provide funding of up to
$198 million under the Cooperative Agreement.
Construction began in September 1993. As of January 1995. the project is 80 percent complete in the construction phase. It is
scheduled for commercial operation to begin August 15. 1995.
Project Cost: $368 million
WILSONVILLE POWER SYSTEMS DEVELOPMENT FACILITY (PSDF) PROJECT - Southern
States Department of Energy (C-617)
Company Services, Inc. and United
The PSDF will consist of five modules for systems and component testing. These modules include an Advanced Pressurized
Fluidized Bed Combustion (APFBC) Module, and Advance Gasifier Module, Hot Gas Cleanup Module, Compressor/Turbine
Module, and a Fuel Cell Module.
The intent of the PSDF is to provide a flexible test facility that can be used to develop advanced power system components,
evaluate advanced turbine and fuel cell system configurations,
and assess the integration and control issues of these advanced
power systems. The facility would provide a resource for rigorous, long-term testing and performance assessment of hot stream
cleanup devices in an integrated environment, permitting evaluation of not only the cleanup devices but also other components in
an integrated operation.
The facility will be located at the Southern Company's Clean Coal Research Center in Wilsonville. AL. It will be sized to feed
104 tons per day of Illinois No. 6 bituminous coal with a Powder River subbituminous coal as an alternate coal.
The advanced gasifier module involves M.W. Kellogg's transport technology for pressurized combustion and gasification to provide
either an oxidizing or reducing gas for parametric testing of hot particulate control devices. The transport reactor is sized to
process nominally 2 tons per hour of coal to deliver 1,000 ACFM of particulate laden gas to the PCD inlet over the temperature
range of 1,000 to 1,800F at 300 psig.
The second-generation APFBC system is capable of achieving 45 percent net plant efficiency. The APFBC system designed for the
PSDF consists of a high pressure (170 psia), medium temperature (1,600F) carbonizer to generate 1300 ACFM of low-BTU fuel
gas and a circulating PFBC (operating at 150 psia, 1.600T) generating 7300 ACFM combustion gas. The coal feed rate to car
bonizer willbe 2.75 tons per hour, and with the Longview limestone, a Ca/S molar ratio of 1.75 is required to capture 90 percent of
the sulfur in the carbonizer/CPFBC. The gas exiting from the carbonizer and the CPFBC is filtered hot to remove particulates
prior to the topping combustor.
A Multi-Annular Swirl Burner (MASB) is chosen to combust the gases from the carbonizer and increase the temperature of the
CPFBC flue gases to 2,350F. The exit gases are, however, cooled to 1,970F in order to meet the temperature limitation on the
gas turbine.
The hot gas is expanded through a gas turbine (Allison Model 501-KM), powering both the electric generator and air compressor.
The hot gases coming off the transport reactor, carbonizer and CPFBC will be cleaned by different PCDs. PCDs from Combustion
Power Company. Industrial Filter and Pump and Westinghouse will be tested at the PSDF. The list includes ceramic cross-flow,
candle and tube filters and screenless granular bed filters.
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SYNTHETIC FUELS REPORT, JANUARY 1995