Combined CO/sub 2/--O/sub 2/ underground pyrolysis-gasification of southwestern coals. Progress report, July--September 1977

Technical Report · Sat Jul 01 00:00:00 EDT 1978

DOI:https://doi.org/10.2172/6726166· OSTI ID:6726166

Vanderborgh, N E

The Los Alamos Scientific Laboratory (LASL) is studying an advanced concept for underground coal gasification that has been designed to address the deeply lying subbituminous seams in the Southwestern United States. The intent of these studies is to evaluate, both with laboratory experiments and computer simulations, the processing options available when dealing with low moisture content coals, as are found in the southwestern region. This report presents an overview of the LASL program and describes theoretical and experimental work in progress. It also includes preliminary engineering assessments and concludes with a description of proposed field experiments. The combined pyrolysis-gasification process requires that the heat output and mass output of two separate underground processing zones be efficiently coupled together. The engineering feasibility of this approach is explored. Specific engineering calculations were performed to address unresolved questions.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6726166
• Report Number(s): LA-7336-PR
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
IN-SITU GASIFICATION
FEASIBILITY STUDIES
BENCH-SCALE EXPERIMENTS
CARBON DIOXIDE
COAL DEPOSITS
COAL GASIFICATION
OXYGEN
PERMEABILITY
PYROLYSIS
SIMULATION
THERMODYNAMICS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CRYOGENIC FLUIDS
DECOMPOSITION
ELEMENTS
FLUIDS
GASIFICATION
GEOLOGIC DEPOSITS
IN-SITU PROCESSING
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PROCESSING
RESOURCES
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification