3152.     ---------------.  [SEBASTIAN, J. J. S., EDEBURN, P. W., BONAR, F., BONIFIELD, L. W., AND SCHMIDT, L. D.]  Laboratory-Scale Work on Synthesis-Gas Production.  II.  Experimental Pilot Unit for Underground Gasification Studies With Highly Superheated Steam and Oxygen.  Bureau of Mines Rept. of Investigations 4742, 1951, pp. 33-41.

        As underground gasification is essentially gasification of coke walls resulting from the carbonization of coal seams by intense heat, it was decided to study the gasification of run-of-oven, high-temperature coke cemented together into a strong, circular wall about 2 ft. thick.  A preliminary run of 31 hr. duration in a pilot unit was performed with O₂ and highly superheated steam.  Although operating results were incomplete, it was proved that the production of synthesis gas is possible even from such unreactive substances as high-temperature coke containing 23% inert material.  Although the run was discontinued because of the failure of the cemented circular coke wall, the feasibility of gasification was demonstrated.

        SEELIG, H. S.  See abs. 2754a, 3618, 3642b.