3206. SMITH, D. F. Equilibrium Condition in the Formation of Hydrocarbons and Alcohols From Water Gas. Ind. Eng. Chem., vol. 19, 1927, pp. 801-803; Chem. Abs., vol. 21, 1927, p. 2783. Study of equilibrium conditions in the reactions between CO and H2 to produce CH4, C2H6, C3H8, C6H6, MeOH, EtOH, and BuOH. Conclusions: (1) It is easier to form the higher paraffin hydrocarbons than the lower ones from water gas at all temperatures, and there is a much greater tendency for the O2 to go to CO2 than to H2O; (2) the tendency to form aromatic and probably branched-chain and cyclic hydrocarbons is generally greater than to form straight-chain compounds; (3) the lower alcohols cannot be formed from water gas at atmospheric pressure and temperatures of 300° and above, while the higher alcohols can be formed in considerable amounts with water gas under these conditions; (4) the tendency to form all these compounds falls rather rapidly with increasing temperature; (5) maximum possible yields can be calculated from the values of K (given in a table); and (6) the acuracy of the free-energy values given should be satisfactory on the alcohols, and reasonably so on the hydrocarbons. |