Mild gasification of Usibelli coal in an inclined fluidized-bed reactor
Results of mild gasification tests of minus 16-mesh Usibelli coal in an inclined fluidized-bed reactor are described in this report. The minus 16-mesh fraction was separated from the coal by screening. The coal was dried to zero moisture content, and about 2 wt % of the volatiles was removed as gas by partial decarboxylation using a 100-lb/hr inclined fluidized-bed dryer. The dried coal was subjected to mild gasification at maximum temperatures of 1050 to 1250{degrees}F (566 to 677{degrees}C) and feed rates of 7.5 lb/hr while using a once-through flow of carbon dioxide as fluidizing gas in a 1-inch-wide, inclined fluidized-bed reactor. Mild gasification of the dried coal resulted in production of 44 to 56 wt % of the dried coal as char, 10 to 13 wt % as liquids, 17 to 28 wt % as gas, and 8 to 21 wt % as fines. The yield of moisture- and ash-free (MAF) liquids varied from 11.4 to 14.2 wt % of the dried coal feed. Chemical analysis was carried out on these products.
- Research Organization:
- Western Research Inst., Laramie, WY (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC21-86MC11076
- OSTI ID:
- 10106405
- Report Number(s):
- DOE/MC/11076-3017; ON: DE91002097
- Resource Relation:
- Other Information: PBD: Feb 1991
- Country of Publication:
- United States
- Language:
- English
Similar Records
Development of an advanced process for drying fine coal in an inclined fluidized bed
Development of an advanced mild gasification process
Related Subjects
COAL
SCREENING
DRYING
GRINDING
COAL GASIFICATION
FLUIDIZED-BED COMBUSTORS
VOLATILE MATTER
CARBON DIOXIDE
CHARS
COAL LIQUIDS
SYNTHESIS GAS
COAL FINES
CALORIFIC VALUE
DISTILLATION
ALKANES
ALKENES
AROMATICS
HYDROCARBONS
SULFUR
NITROGEN
OXYGEN
QUINOLINES
TOLUENE
QUANTITATIVE CHEMICAL ANALYSIS
010404
GASIFICATION