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- Underground gasification of coal :hydraulic fracturing as method of preparing a coalbed
- Gasification of pulverized coal at atmospheric pressure :discussion of pilot-plant development, study of process variables, and relative gasification characteristics of coals of different rank
- Underground gasification of coal :second experiment in preparing a path through a coalbed by hydraulic fracturing
- Gasification of bituminous coal with oxygen in a pilot plant equipped for slurry feeding
- Underground gasification of coal with oxygen-enriched air
- Operating a pressure-gasification pilot plant using pulverized coal and oxygen :effect of heat loss on economy
- Gasification of bituminous coal with oxygen in a pilot plant equipped for steam-pickup feeding