Pressurized hydrogasification of raw coal in a dilute-phase reactor

Conference · Thu Jan 01 04:00:00 EST 1976 · Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States)

OSTI ID:7181320

Feldmann, H F; Mima, J A; Yavorsky, P M

Experimental results on the direct conversion of raw bituminous coals to methane by hydrogasification at pressures from 500 to 2,000 psig are presented. The majority of experimental data are for 1,000 to 1,500 psig which probably represents the optimum balance between the high methane concentrations possible at higher pressures and reduced costs at lower pressure. The 3-inch id reactor operated as a free-fall dilute-phase system which allows caking coal to be converted to a noncaking char and methane by reaction with hydrogen. Operating at appropriate gas/coal feed ratios allows the production of a high (70 vol pct) methane gas that is upgradable to pipeline gas with a heating value of 900 or more Btu/scf after methanation of the 4 vol pct CO in the raw product gas. The range of conditions for achieving high-Btu gas are reported as well as the compositions of the product gas and the properties of the char produced. The kinetics of dilute-phase hydrogasification reaction and the application of these data to the design of large-scale dilute-phase reactors for the Hydrane Process are discussed.

• Research Organization: Bureau of Mines, Pittsburgh
• OSTI ID: 7181320
• Conference Information: Journal Name: Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States) Journal Volume: 18:1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010403 -- Coal & Coal Products-- Hydrogenation-- (-1987)
010404* -- Coal
Lignite
& Peat-- Gasification
ALKANES
BITUMINOUS COAL
BLACK COAL
CALORIFIC VALUE
CARBONACEOUS MATERIALS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL
COAL GASIFICATION
COMBUSTION PROPERTIES
CRYOGENIC FLUIDS
DESIGN
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
GASIFICATION
HIGH BTU GAS
HIGH PRESSURE
HYDROCARBONS
HYDROGENATION
KINETICS
MEDIUM PRESSURE
METHANE
ORGANIC COMPOUNDS
PRODUCTION
REACTION KINETICS