372.     BROWN, B. K., AND GUNNESS, R. C.  Future Fuels – Liquid and Gaseous.  Mech. Eng., vol. 70, No. 5, 1948, pp. 421-424; Chem. Eng. News, vol. 26, 1947, pp. 2123-2127, 2171; Chem. Abs., vol. 42, 1948, p. 4323 (Brown and Gunness), p. 6509 (Gunness).

      Demand for petroleum products has quadrupled during the last 25 hr., and it may be expected to increase another 30% by 1970, at which time the total demand will exceed 7 million bbl. per day. This demand will be met by domestic crude-oil production, some foreign imports, and by synthesis from natural gas and coal.  Oil from shale and tar sands seems to be more remote than from synthesis.  The economics of the industry will result in a gradually diminishing supply of residual fuel oil from industrial purposes, and coal will handle an increasing share of the expanding industrial-fuel load.  This means a very large future development in coal mining to take care of the increasing demand for coal.  To produce even 1 million bbl. of oil per day from coal will require the mining and processing of 650,000 tons of coal per day or 236 million tons per yr., or nearly one-half of our present production.

      BROWN, E. A.  See abs. 3551.

      BROWN, G. G.  See abs. 1121.

      BROWN, R. L.  See abs. 921, 922, 928.