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May 30, 2008

IGCC demonstration plant achieves rated load of 250MW

On March 7, integrated gasification combined cycle (IGCC) demonstration plant supplied to Clean Coal Power (CCP) R&D Co., Inc. in Nakoso, Fukushima Prefecture achieved a rated load of 250MW.

IGCC is a high efficiency power generation system that uses coal which excels in supplying low cost energy in a stable manner. Furthermore, IGCC discharges low amounts of CO2, which causes global warming, and heated effluent when compared to the conventional coal firing systems, making it an environmentally-friendly technology for coal fired power generation.

MHI with Mitsubishi Electric have supplied the IGCC demonstration plant to CCP as a full turn key project, including the supply of main facilities such as air-blown gasifier facilities, wet-type gas clean-up facilities, and 1,200°C-class gas turbine facilities.
Construction was initiated in 2004, and commissioning tests, inspections, and so on have been implemented since the ignition of the gasifier on September 20 last year. On March 7, a rated load of 250MW was achieved.
Long-term, continuous operation is scheduled to begin in the first half of this fiscal year with a view toward commercialization.

IGCC実証機 外観
IGCC demonstration plant


Integrated Coal Gasification Combined Cycle (IGCC)

The combined cycle electric power plant shown in Figure 1 is a high efficiency electric power generation system using clean fuels such as oil or natural gas.
Coal has a low price and stable supply. By applying coal to combined cycle electric power plants, one can generate highly efficient electric power by coal. In an IGCC system, a coal gasifier and gas clean-up facility are built in the fuel section, as shown in Figure2, enabling coal’s application in a combined cycle electric power plant.
Appling the coal gasifier and clean-up systems, cleaned synthesis gas is supplied to a gas turbine.

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