Ikelic - Alliance Digital Repository

STATUS OF COAL PROJECTS (Underline denotes changes since June 1994)
COMMERCIAL AND R&D PROJECTS (Continued)
PUERTOLLANO - IGCC DEMONSTRATION PLANT ELCOGAS,
SA. (C-476)
Under the corporation ELCOGAS. SA.. the Spanish utility company ENDESA together with EDF/France. IBERDROLA /Spain.
Hidroelectrica del Cantabrico/Spain. SEVILLANA/Spain. EDP/Portugal. EN'EL/ltalv and National Power/England are involved
in the Puertollano Project. The project also has the European Economic Commission support, under the Thermie Program.
The proposed project has a capacity of 300 MWe (net). The PRENFLO gasification technology has been chosen for the gasifier.
The plant configuration is single-train throughout. Using oxygen and steam, about 100 tons of coal per hour will be gasified. The
required oxygen, approximately 90 tons per hour, will be produced in a single-train air separation unit. The resulting coal gas will
be dedusted, desulfurized and saturated in a single-train configuration and then combusted in a single Siemens combustion turbine.
A 50/50 mixture of Puertollano coal and petroleum coke from the Puertollano Petroleum Refinery is intended to be the main
feedstock for this project. Coals from Spain and other European countries will also be tested over the 3-year demonstration
period.
SO Emission values of 10 mg/m n and NO values of 60 mg/m n are expected in the exhaust gas (based on 15 volume percent
oxygen).
*
The combined cycle power plant at Puertollano will be switched into the grid in the second half of 1995, fueled initially with natural
gas. Conversion to coal gas will take place by the end of 1996. A 3-year demonstration period is planned.
Project Cost: ECU600 million
- PYGAS DEMONSTRATION PROJECT Morgantown
Energy Technology Center (METC), CRS Sirrine Engineers, Inc. (C-477)
METC and CRS Sirrine have been working on the development of a gasifier which uses carbonizer tubes as a means to drive off
coal volatiles and tar prior to the conventional fixed-bed gasifier process. The combination of carbonizer (pyrolysis) tube and
fixed-bed gasifier results in coal "Pyrolysis"
and "Gasification,"
hence the name PyGas.
A gasification facility will be built at METC's Gasification Product Improvement Facility (GPIF) located at Monongahela Power's
Fort Martin site. The gasifier will be rated at 6 tons per hour coal throughput. Operating pressure is 600 psi. It is expected to be
5 feet in diameter and 34 feet high.
The concept of the facility is to meter feed coal alone or with limestone through a crusher/dryer and pressure lock pneumatically to
the pryolyzer section of the gasifier. Porous devolatilized char and pyrolysis gas exit the top of the pyrolyzer. Air is injected into
the upper dome of the gasifier to raise the temperature high enough to crack tar vapors in the pyrolysis gas. The char separates
from the gas by gravity and forms the fixed bed.
The gases pass cocurrently downward with the char into the conventional fixed-bed gasification section. The porous char is further
gasified by the countercurrent admittance or air and steam through a rotating grate.
QINGDAO GASIFICATION PLANT (C^78)
China is building a coal gasification plant in the northern city of Qingdao in the Shandong province. The plant, which will produce
263 million cf per day of gas, involves two coke-making batteries, a coal preparation plant, a thermal power station and 14 gas
retorts. The plant will provide a district heating network for the 6.7 million person city, eliminating hundreds of coal-fired boilers
and stoves.
The gasification project is part of a $210 million environmental cleanup program in Qingdao. The Asian Development Bank will
finance $103 million of the total cost, with China providing the balance.
-
RHEINBRAUN HIGH-TEMPERATURE WINKLER PROJECT Rheinbraun
Federal Ministry for Research & Technology (C-480)
AG, Uhde GmbH, Lurgi GmbH, German
Rheinbraun and Uhde have been cooperating since 1975 on development of the High-Temperature Winkler fluidized bed gasifica
tion process. In 1990 Lurgi joined the commercialization effort.
Based on operational experience with various coal gasification processes, especially with ambient pressure Winkler gasifiers,
Rheinische Braunkohlcnwerke AG (Rheinbraun) in the 1960s decided to develop pressurized fluidized bed gasification, the High-
Temperature Winkler (HTW) process. The engineering contractor for this process is Uhde GmbH.
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SYNTHETIC FUELS REPORT, JANUARY 1995