Generation, control, and recovery of organic pyrolysis products in underground coal gasification

Journal Article · Thu Jan 01 04:00:00 EST 1987 · Fuel Sci. Technol. Int.; (United States)

DOI:https://doi.org/10.1080/08843758708915855· OSTI ID:6448194

Glaser, R R; Owen, T E

The organic chemical substances present in UCG-affected subsurface waters are formed by the thermal degradation of coal. After a UCG reactor is shut down, the sensible heat contained in the rubble pile is sufficient to continue coal pyrolysis. If the pyrolysis products are not removed, they become a potential source of subsurface water contamination. Heat transfer into the coal seam and migration of chemical substances after reactor shutdown can be substantially reduced by a controlled influx of water through the cavity side walls and removal of produced fluids from the reactor.

• Research Organization: Western Research Institute, Laramie, WY 82071
• OSTI ID: 6448194
• Journal Information: Fuel Sci. Technol. Int.; (United States), Journal Name: Fuel Sci. Technol. Int.; (United States) Vol. 5:3; ISSN FSCTE
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
010409 -- Coal
Lignite
& Peat-- Pyrolysis & Carbonization-- (1987-)
CARBONACEOUS MATERIALS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMICAL REACTORS
COAL
COAL GASIFICATION
DECOMPOSITION
ENERGY SOURCES
ENERGY TRANSFER
FOSSIL FUELS
FUELS
GASIFICATION
GROUND WATER
HEAT TRANSFER
HYDROGEN COMPOUNDS
IN-SITU GASIFICATION
IN-SITU PROCESSING
MATERIALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
PROCESSING
PYROLYSIS
SHUTDOWNS
THERMOCHEMICAL PROCESSES
WATER
WATER INFLUX
WATER POLLUTION
YIELDS