Air blown gasification cycle

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:287990

Dawes, S G; Mordecai, M ^[1]; Brown, D ^[2]; Burnard, G K ^[3]

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1. British Coal Corp., Cheltenham (United Kingdom)
2. European Gas Turbines, Lincoln (United Kingdom)
3. ETSU, Harwell (United Kingdom)

The Air Blown Gasification Cycle (ABGC) is a hybrid partial gasification cycle based on a novel, air blown pressurized fluidized bed gasifier (PFBG) with a circulating fluidized bed combustor (CFBC) to burn the residual char from the PFBG. The ABGC has been developed primarily as a clean coal generation system and embodies a sulfur capture mechanism based on the addition of limestone, or other sorbent, to the PFBG where it is sulfided in the reducing atmosphere, followed by oxidation to a stable sulfate residue in the CFBC. In order to achieve commercialization, certain key technological issues needed to be addressed and an industry-led consortium was established to develop the components of the system through the prototype plant to commercial exploitation. The consortium, known as the Clean Coal Power Generation Group (CCPGG), is undertaking a program of activity aimed at achieving a design specification for a 75 MWe prototype integrated plant by March, 1996. Component development consists of both the establishment of new components, such as the PFBG and the hot gas clean up system, and specific development of already established components, such as the CFBC, raw gas cooler, heat recovery steam generator (HRSG) and gas turbine. This paper discusses the component development activities and indicates the expected performance and economics of both the prototype and commercial plants. In addition, the strategy for component development and achievement of the specification for a 75 MWe prototype integrated plant is described.

• OSTI ID: 287990
• Report Number(s): CONF-950522--; ISBN 0-7918-1305-3
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
CHARS
COAL GASIFICATION
COMBINED-CYCLE POWER PLANTS
DESIGN
ECONOMICS
FLOWSHEETS
FLUIDIZED BED BOILERS
FLUIDIZED-BED COMBUSTION
GAS GENERATORS
GAS TURBINES
HEAT RECOVERY EQUIPMENT
HOT GAS CLEANUP
MATERIALS
PERFORMANCE
PRESSURIZATION
SORBENT INJECTION PROCESSES