Coal pretreatment in free fall for gasification in a fluidized bed. [7 refs]

Technical Report · Sun Jan 01 04:00:00 EST 1967

OSTI ID:7295146

Gasior, S J; Forney, A J; Haynes, W P; Kenny, R F

Pulverized coals, Pittsburgh seam, (nominal 70 percent through 200 U.S. sieve size) and Illinois No. 6 (36 percent through 200 sieve size) were converted to a non-caking char by dropping them through an 8-foot long, 2-inch schedule 80 pipe concurrent with an inert gas (N/sub 2/ or CO/sub 2/) containing oxygen at 20 to 40 atmospheres and a nominal 420/sup 0/C. The inert gas-to-raw-coal feed ratios, expressed as standard cubic feet per pound of coal (SCF/lb) ranged from 3.7 to 5.3, and the oxygen-to-coal feed ratios ranged from 0.6 to 1.1. Product gas (H/sub 2/, CO, CH/sub 4/) yields of 0.24 to 0.45 SCF/lb raw coal and tar yields of 0.3 to 1.4 weight percent of raw feed coal were obtained.

• Research Organization: Bureau of Mines, Pittsburgh, PA (USA)
• OSTI ID: 7295146
• Report Number(s): NP-21874
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
ALKANES
CAKING POWER
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHARS
CHEMICAL ANALYSIS
COAL FINES
COAL GASIFICATION
COAL PREPARATION
COAL TAR
COMMINUTION
CRYOGENIC FLUIDS
ELEMENTS
ENERGY SOURCES
FLUIDIZED BED
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
GASIFICATION
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN
METHANE
NONMETALS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PARTICLE SIZE
PRODUCTION
SIZE
TAR
THERMOCHEMICAL PROCESSES