Ikelic - Alliance Digital Repository

STATUS OF COAL PROJECTS (Underline denotes changes since June 1994)
COMMERCIAL AND R&D PROJECTS (Continued)
In September 1994. KFx signed a Memorandum of Understanding with Thermo Energy Systems Corporation (a subsidiary of
Thermo Electron) and SDS Petroleum. Inc.. to finance, construct, own and operate a 500.000 ton per year commercial plant to be
built near Gillette. Wyoming utilizing the Koppelman Series "C technology. Sales agreements with selected customers are being
negotiated.
""' " "
KFx has identified three specific international opportunities in the Czech Republic. Turkey, and Indonesia, and is investigating
other potential international projects -
Project Cost: $32 million Wyoming Series "C"
especially in India. Russia. China. Korea, and Taiwan.
KOBRA HIGH - TEMPERATURE WINKLER IGCC DEMONSTRATION PLANT RWE
Energie AG (C-294)
In 1992 RWE Energie AG, a sister company of Rheinbraun AG, has decided to build a combined-cycle power station with in
tegrated gasification based on the High Temperature Winkler (HTW) technology. Raw brown coal with 50 to 60 percent moisture
will be dried down to 12 percent, gasified and dedusted with ceramic filters after passing the waste heat boiler. After the conven
tional scrubber unit, the gas will be desulphurized and fed to the combined cycle process with an unfired heat recovery steam gen
erator. This project is referred to as KOBRA (in German: Kombikraftwerk mit Braunkohlenvergasung, i.e. combined-cycle power
station with integrated brown coal gasification).
The capacity of the KOBRA plant slightly exceeded 300 MWe. The fuel gas was produced in this demonstration plant by one air-
blown gasifier. having a throughput of 3.800 tons per day of dried lignite. The gas turbine had a rated capacity of about 200 MWe,
and the overall plant reached a net efficiency of 45 percent.
To implement this project, a task force comprising staff members of both RWE Energie AG and Rheinbraun AG started working
in 1992. Permit engineering was completed in late 1993. Building and operating permits are expected to be issued in 1995.
Of crucial importance for reaching a high overall efficiency is the coal drying system which reduces the moisture content of the raw
brown coal to 12 percent. For this step, Rheinbraun's WTA process was employed (WTA means fluidized-bed drying with internal
waste heat utilization).
To demonstrate the technology, a plant having a capacity of 20 tons per hour of dried lignite was started up in 1992 for testing pur
poses. Engineering of this project was handled by Lurgi GmbH.
By the end of 1992, all process engineering criteria had been determined. The commissioning of the demonstration plant was ex
pected to begin in mid-1996.
In 1994. RWE Energie AG decided to postpone the KOBRA demonstration project and start a three-year R&D program to deter
mine reliability of components and processes, to reduce operational and investment costs, and to increase efficiency.
- LAKESIDE REPOWERING GASIFICATION PROJECT Combustion
(DOE)(C-320)
Engineering, Inc. and United States Department of Energy
The project will demonstrate Combustion Engineering's pressurized, airblown, entrained-flow coal gasification repowering technol
ogy on a commercial scale. The syngas will be cleaned of sulfur and particulates and then combusted in a gas turbine (40 MWe)
from which heat will be recovered in a heat recovery steam generator (HRSG). Steam from the gasification process and the HRSG
will be used to power an existing steam turbine (25 MWe).
The project was selected under Round II of the Clean Coal Technology Program for demonstration at the Lakeside Generating
Station of City Water, Light and Power, Springfield, Illinois. The project demonstrates airblown gasification at high efficiency with
99 percent sulfur capture and 90 percent NO reduction. A new zinc titanate hot gas cleanup system is incorporated to provide
even lower sulfur emissions.
Preliminary plant design and definitive cost estimates have been developed for DOE and project review. ABB is focusing on the
requirement of the electric power generation market in the design of this plant.
Due to increased costs for the procurement and construction of the plant, the project is on hold while alternate sites are being con
sidered.
Project Cost: To be determined
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SYNTHETIC FUELS REPORT. JANUARY 1995