LLNL Underground-Coal-Gasification Project. Quarterly progress report, July-September 1981

Technical Report · Mon Nov 09 00:00:00 EST 1981

DOI:https://doi.org/10.2172/5415197· OSTI ID:5415197

Stephens, D. R.; Clements, W. ^[1]

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1. eds.

We have continued our laboratory studies of forward gasification in small blocks of coal mounted in 55-gal drums. A steam/oxygen mixture is fed into a small hole drilled longitudinally through the center of the block, the coal is ignited near the inlet and burns toward the outlet, and the product gases come off at the outlet. Various diagnostic measurements are made during the course of the burn, and afterward the coal block is split open so that the cavity can be examined. Development work continues on our mathematical model for the small coal block experiments. Preparations for the large block experiments at a coal outcrop in the Tono Basin of Washington State have required steadily increasing effort with the approach of the scheduled starting time for the experiments (Fall 1981). Also in preparation is the deep gasification experiment, Tono 1, planned for another site in the Tono Basin after the large block experiments have been completed. Wrap-up work continues on our previous gasification experiments in Wyoming. Results of the postburn core-drilling program Hoe Creek 3 are presented here. Since 1976 the Soviets have been granted four US patents on various aspects of the underground coal gasification process. These patents are described here, and techniques of special interest are noted. Finally, we include ten abstracts of pertinent LLNL reports and papers completed during the quarter.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5415197
• Report Number(s): UCRL-50026-81-3; ON: DE82008617
• Resource Relation: Other Information: Portions of document are illegible
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
IN-SITU GASIFICATION
BENCH-SCALE EXPERIMENTS
PLANNING
BOREHOLE LINKING
COAL GASIFICATION
GAMMA LOGGING
HYDRAULIC FRACTURING
MATHEMATICAL MODELS
OXYGEN
PATENTS
STEAM
USSR
WELL LOGGING
ASIA
COMMINUTION
DOCUMENT TYPES
EASTERN EUROPE
ELEMENTS
EUROPE
FRACTURING
GASIFICATION
IN-SITU PROCESSING
NONMETALS
PROCESSING
RADIOACTIVITY LOGGING
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification