Investigation of a sulfur reduction technique for mild gasification char. Technical report, September 1, 1991--November 30, 1991
The object of this program is to investigate the desulfurization of mild gasification char using hydrogen/methane mixtures in a laboratory-scale experimental study. In the first year of the two- year program, char is being treated with mixtures of H{sub 2} and CH{sub 4} at temperatures of 1100{degrees}C to 1550{degrees}F and pressures of 50 to 100 psig. The effects of temperature, pressure, residence time, gas velocity, and gas composition on sulfur removal and carbon gasification are being determined. The batch experiments are being performed in a nominal 2-inch-ID stainless-steel, batch, fluidized-bed reactor. The char to be desulfurized was produced by the IGT mild gasification process research unit (PRU) in a recently completed DOE/METC-sponsored technology development program. The parent coal was Illinois No. 6 from a preparation plant, and the char from the selected test contains 4.58 wt% sulfur. In the first quarter, we have obtained and prepared a char for the desulfurization tests. Ultimate and proximate analyses were performed on this char, and its pore size distribution and surface area were determined. Also this quarter, the fluidized-bed reactor system was constructed and equipped with high pressure mass flow controllers and a high pressure sintered metal filter to remove fines from the effluent gas stream.
- Research Organization:
- Institute of Gas Technology, Chicago, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); Illinois Dept. of Energy and Natural Resources, Springfield, IL (United States)
- DOE Contract Number:
- FG22-91PC91334
- OSTI ID:
- 10123723
- Report Number(s):
- DOE/PC/91334-T10; ON: DE92007882
- Resource Relation:
- Other Information: PBD: [1991]
- Country of Publication:
- United States
- Language:
- English
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Investigation of a technique for sulfur reduction of mild gasification char. Technical report, March 1--May 31, 1992
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Related Subjects
CHARS
DESULFURIZATION
COAL GASIFICATION
HYDROGEN
METHANE
MARKET
TEMPERATURE DEPENDENCE
PRESSURE DEPENDENCE
VELOCITY
FLUIDIZED BEDS
CHEMICAL REACTORS
PROCESS DEVELOPMENT UNITS
BITUMINOUS COAL
POROSITY
SURFACE AREA
PROGRESS REPORT
010404
010402
GASIFICATION
PURIFICATION AND UPGRADING