3449.    ---------------.  [TROPSCH, H.]  [Equilibrium Conditions in the Formation of Hydrocarbons and Alcohols From Water Gas.]  Brennstoff-Chem., vol. 8, 1927, p. 376; Ges. Abhandl. Kenntnis Kohle, vol. 8, 1929, pp. 336-337; Chem. Abs., vol. 22, 1928, p. 3976.

        Smith states (abs. 3206) that equilibrium calculations show that, as the temperature is increased, formation of higher rather than lower hydrocarbons is favored, whereas experimental work of Tropsch shows that high temperatures favor formation of CH₄.  Smith also finds that increased pressure favors production of higher paraffins.  This agrees with experimental results of Tropsch, except that oxygenated compounds are formed at temperatures high enough to drive from the catalyst the higher hydrocarbons, which have been formed.