2615.     PERRY, H., COREY, R. C., AND ELLIOTT, M. A.  Continuous Gasification of Pulverized Coal With Oxygen and Steam by the Vortex Principle.  Trans. Am. Soc. Mech. Eng., vol. 72, No. 5, 1950, pp. 599-610; Chem. Abs., vol. 44, 1950, p. 7510.

        This report presents the preliminary results of a Bureau of Mines investigation of the gasification of pulverized coal by steam-O₂ mixtures in a vortex reactor.  The theory of the vortex is explained, the basic principles of reactor design is set forth, and an illustrative example of their application is given.  A method of calculating the composition of the gas produced in this reactor is advanced and has been checked experimentally.  The C conversion and the limits of operation have been found to be closely related to the type and uniformity of the coal distribution.  A method of improving the operation of the equipment and the quality of the gas by a change in the type of coal distributor from the conical to the spinning-plate form appears to offer considerable advantages.

        PERRY, L. R.  See abs. 1105.

        PERSSON, O.  See abs. 1385.