Gasification of coal chars in a fluidized-bed ash-agglomeration gasifier

Conference · Mon Nov 01 04:00:00 EST 1976

OSTI ID:7233464

Sandstrom, W A; Rehmat, A G; Bair, W G

The objective of the program was to study the ash-agglomeration principle, to design and construct an atmospheric pressure pilot plant, and to obtain experimental data from this unit. An ash-agglomeration gasifier was built 4 ft. in diameter by 25 ft. high with a nominal capacity of 500 lb./hr. of feed material. The gasification mediums utilized were air and steam, enriched air and steam and oxygen/steam mixtures. The basic objectives of the test program were achieved when processing metallurgical coke. These objectives were (1) the selective removal of high-ash-bearing material while operating with a high-carbon-content fluidized bed, (2) the reinjection and combustion of elutriated fines from the fluidized-bed gasifier, and (3) conversion of greater than 95 percent of the carbon fed to a fuel gas. The results of this test program are highly encouraging. Additional work at higher pressures should be done to confirm the design factors to incorporate the ash-agglomeration gasifier process into a high-pressure coal gasification process, such as HYGAS.

• Research Organization: Institute of Gas Technology, Chicago, IL (USA)
• OSTI ID: 7233464
• Report Number(s): CONF-761109-6
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
AGGLOMERATING ASH PROCESS
AGGLOMERATION
AIR
ASHES
CHARS
COAL GASIFICATION
COKE
CRYOGENIC FLUIDS
DESIGN
DIAGRAMS
ELEMENTS
ENERGY SOURCES
FLOWSHEETS
FLUIDS
FUEL GAS
FUELS
FUNCTIONAL MODELS
GAS FUELS
GASES
GASIFICATION
NONMETALS
OXYGEN
PILOT PLANTS
PRODUCTION
RESIDUES
STEAM