2008.    KUMMER, J. T., BROWNING, L. C., AND EMMETT, P. H.  Thermodynamic Calculations Concerning the Possible Participation of the Carbides of Iron as Intermediate in Fischer-Tropsch Synthesis.  Jour. Chem. Phys., vol. 16, No. 7, 1948, pp. 739-740; Chem. Abs., vol. 42, 1948, p. 6623.

      It is concluded from thermodynamic considerations that neither n-mono-olefins nor the higher n-paraffins can be formed from CO and H2 by reduction of the bulk or the hexagonal Fe2C or Fe3C by H2.  It is indicated, however, that the lower normal paraffins with n as high as 6 could, as far as thermodynamic limitations are concerned, be formed under Fischer-Tropsch synthesis conditions by reduction of bulk Fe2C by H2.