Coal-gasification research studies. Quarterly report, August 20-November 19, 1982

Technical Report · Tue Feb 01 04:00:00 EST 1983

OSTI ID:6788115

This research studies program is designed to advance the fundamental understanding of the chemistry and physics of coal gasification and to generate basic design data lacking in the literature. The three areas under investigation are: coal ash behavior in gasification processes, high-pressure fluidization, and high-temperature fluidization. The objective of the coal ash behavior studies is to gain a better understanding of low-melting ash and ash agglomerate formation in coal gasifiers. In that portion of the study aimed at characterization of ash components, a 2-inch diameter fluidized bed is being used to study the ash formation as a function of temperature, gas composition and carbon conversion. This apparatus was used to study ash formation of a Kentucky No. 9 plus a No. 11 char in a CO/sub 2//steam atmosphere at 1800/sup 0/F. It is estimated that this study is about 20% complete. Design and construction of the penetrometer viscometer to be used in ash viscosity measurements proceded according to schedule with the design being completed and components ordered, most of which have been received. The objective of the fluidization studies is to determine the bubble characteristics in both high-pressure and high-temperature fluidized beds. Modification of existing fluidization units was started and is approximately 40% complete. The modification of the high-pressure unit will be completed and modification of the high-temperature unit will be close to completion during the second quarter. Both capacitance and pressure type probes were evaluated for applicability to the study of bubble characteristics in these units and the pressure type was selected.

• Research Organization: Institute of Gas Technology, Chicago, IL (USA)
• DOE Contract Number: AC21-82MC19301
• OSTI ID: 6788115
• Report Number(s): DOE/MC/19301-1; ON: DE83006604
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
AGGLOMERATION
ASHES
BUBBLES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
COAL GASIFICATION
FLUIDIZATION
FLUIDIZED BED
GASIFICATION
MELTING
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
RESEARCH PROGRAMS
RESIDUES
STEAM
TEMPERATURE DEPENDENCE
TEST FACILITIES
THERMOCHEMICAL PROCESSES
VISCOSITY