PATENT 3646. ----- [STIMSON, E. E. Gas Manufacture.]. Canadian Patent 423,377, Oct. 24, 1944, appl. filed Jan. 6, 1943; in Great Britain Jan. 20,1942. Production of a gas mixture containing CO and H2 is effected by injecting burning powdered coal with O2 and steam. The apparatus consists of a furnace having gas inlets tangentially inclined and arranged at a number of levels adapted to form a plurality of vortices having a common axis and direction of rotation. |