| 摘要 |
Reformation of an hydrocarbon into a combustible gas comprising H2 and CO is effected as a cyclic process wherein a massive stationary zone of nickel-containing catalyst bodies is alternately heated by passing hot gases, including O2-containing gas, thereinto and then the heated stationary catalyst zone, with nickel in elementary form, and the heat stored therein, is employed to effect a gas phase catalytic reaction with the abstraction of heat from the stationary catalyst zone, there being employed as nickel-containing catalyst, alumina bodies in which the outer periphery of each body, at least to a depth of 1/32 to 1/16 of an inch, consists essentially of particles at least the surface of which consists of nickel spinel or magnesium spinel, the particles additionally having thereon a film of nickel. The hydrocarbon to be reformed may be CH4, C2H6, C3H8, C4H10 and ash-free heavier hydrocarbon distillates such as gasoline and gas oil. Unsaturated hydrocarbons specified are ethylene, propylene and butylene. During the heat storage portion of the cycle use may be made of water gas, producer gas and oil gas or fuel oil, gas oil, gasoline, kerosene and tar. Reformation is effected in the presence of steam and preferably of air.ALSO:A Ni-containing catalyst consists of alumina the outer periphery of which at least to a depth of 1/32 to 1/16 inch. consists of particles at least the surfaces of which consist of Ni or Mg spinel, the particles additionally having thereon a film of Ni on NiO. Preparative details of impregnation, porosity, calcination Pc are given. |
