154.    BATCHELDER, H. R., AND STERNBERG, J. C.  Thermodynamic Study of Coal Gasification, Applicable to Suspension Gasification of Pulverized Coal.  Ind. Eng. Chem., vol. 42, No. 5, 1950, pp. 877-882.

                  Thermodynamic studies of the continuous gasification of suspended powdered coal with superheated steam and O₂ have been undertaken.  A method of calculation has been devised and will be presented in detail in a later paper.  Through systematic application of the method of calculation, series of curves have been obtained for the probable ranges of operation in the gasification of a typical Rock Springs, Wyo., coal and a Union County, western Kentucky, coal with O₂ and superheated steam.  These curves indicate certain trends that may be expected to hold even if the assumptions underlying the calculations are subsequently found to be not strictly valid, and at least 2 economic studies of much importance in reducing the cost of the gasification step are indicated.