2903.     ROSENTHAL, H.  [Manufacture of City Gas From Water Gas.]  Gas- u. Wasserfach, vol. 78, 1935, pp. 436-438; Chem. Abs., vol. 29, 1935, p. 6397.

        One m.³ of water gas containing CO, 39; H₂, 51; CO₂+H₂S 6 and N₂ 4% can be converted into 0.56 m.³ of city gas, analyzing CO, 16; CH₄, 25; H₂, 46.2; CO₂, 5.5; and N₂, 7.3% by catalytic conversion with H₂O and methanation.  Half of the water gas is mixed with steam, the CO₂ converted into CO and H₂ at approximately 500°, and the gas cooled in a waste-heat boiler and direct cooler to 50°, at which temperature H₂S is removed.  Organic S is removed at about 180°, and partial methanation, conversion of about 60% of the CO with 3 times as much H₂, is carried out at 380° with a Ni catalyst.  Cost data are given for the various steps and over-all costs based on the use of blue gas from peat or brown coal.