Gasification coprocessing of Illinois Basin coal and RDF

Conference · Thu Dec 31 04:00:00 EST 1998

OSTI ID:349120

Choudhry, V; Kwan, S ^[1]; Pisupati, S; Klima, M ^[2]; Banerjee, D D ^[3]

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1. Praxis Engineers, Inc., Milpitas, CA (United States)
2. Pennsylvania State Univ., University Park, PA (United States)
3. Illinois Clean Coal Inst., Carterville, IL (United States)

Gasification coprocessing of refuse-derived fuel (RDF) with coal was investigated with the objective of increasing the utilization of high-sulfur Illinois Basin coals and municipal solid waste (MSW) in an environmentally acceptable manner. MSW is a major recurring solid waste whose disposal entails tipping fees of $30--$40/ton, and poses long-term environmental problems. MSW is routinely processed to recover plastics, aluminum, and other metals as part of state-mandated recycling requirements. Following removal of noncombustibles, the remaining material, primarily paper and food wastes, is shredded to produce RDF fluff which has an as-received calorific value of {approximately} 6,000 Btu/lb. The research addressed the problems of size reduction of RDF fluff (an essential step in making a gasifier feed slurry) and production of a pumpable slurry using additives to maximize coal and RDF solids loading. Gasification evaluation of a 60% solids coal/RDF slurry was conducted in an entrained-flow, oxygen-blown, atmospheric pressure, 0.5 million Btu/h research gasifier. High carbon conversion was achieved, and the product gases contained no furans.

• OSTI ID: 349120
• Report Number(s): CONF-980985--; ISBN 1-890977-15-2
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
09 BIOMASS FUELS
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COAL GASIFICATION
COPROCESSING
FUEL SLURRIES
GAS GENERATORS
MUNICIPAL WASTES
PERFORMANCE TESTING
REFUSE DERIVED FUELS