Reaction of calcium-based sorbents with sulfur componds during gasification. Annual report, October 1, 1986-September 30, 1987

Technical Report · Fri Jan 01 04:00:00 EST 1988

OSTI ID:5271192

Rehmat, A; Abbasian, M J

This report outlines the objectives and the data obtained under the project related to the efficient utilization of high-sulfur Illinois coal in a One-Step Coal Gasification/Desulfurization Process by employing in-situ removal of sulfur using calcium-based sorbents. The scope of the research included a study of fluidization behavior of coal char/sorbent mixtures and the reactions of calcium-based sorbents with sulfur present in the coal during gasification. Tests were conducted in bench-scale units; an 8-inch (0.2 meter) fluidization column was utilized for fluidization tests, and a thermobalance reactor was used for gas/solid sulfidation and sulfation reactions. The test parameters included the choice of sorbent, sorbent size, the effect of temperature on the sulfidation and sulfation reactions, the effect of the steam-to-hydrogen sulfide ratio on the sulfidation reaction, the effect of the steam on the sulfation reaction, and the influence of exposure time on sulfation of the presulfided sorbent. The reaction conditions for these reactions were chosen to be applicable to scale-up of an in-situ desulfurization-type coal gasification process such as the one proposed by the Institute of Gas Technology (IGT) and KRW Energy Systems, Inc., of the USA.

• Research Organization: Institute of Gas Technology, Chicago, IL (USA)
• OSTI ID: 5271192
• Report Number(s): PB-88-181300/XAB
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
010800 -- Coal
Lignite
& Peat-- Waste Management
ALKALINE EARTH METAL COMPOUNDS
BITUMINOUS COAL
BLACK COAL
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATE MINERALS
CARBONATE ROCKS
CARBONATES
CHEMICAL REACTIONS
COAL
COAL GASIFICATION
DESULFURIZATION
DOCUMENT TYPES
DOLOMITE
ENERGY SOURCES
FLUIDIZATION
FOSSIL FUELS
FUELS
GASIFICATION
LIMESTONE
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MATERIALS
MINERALS
OXYGEN COMPOUNDS
PROGRESS REPORT
REMOVAL
ROCKS
SEDIMENTARY ROCKS
SORPTIVE PROPERTIES
SULFATES
SULFIDATION
SULFUR COMPOUNDS
SURFACE PROPERTIES
THERMOCHEMICAL PROCESSES