Process for heating hydrogen

Details Process for heating hydrogen Process for heating hydrogen

1984-03-19

1985-01-01

Evans, J. E.

Chemistry of inorganic compounds

Hydrogen or compound thereof

Elemental hydrogen

423651, 423653, 423654, 423655, 423656, 568885, C01B 326

Patent

active

044915730

ABSTRACT:
Desulfurized hydrocarbons are reacted with water vapor on catalysts at temperatures of 700.degree. to 1200.degree. C. to form a high-hydrogen product gas, which is separated in a pressure-swing adsorber into purified hydrogen and a separated gas, which contains substantially carbon oxides and methane. The purified hydrogen is supplied to a hydrogenating plant, which is operated at temperatures in the range of 250.degree. to 500.degree. C. and pressures of 200 to 400 bars. High-hydrogen gas from the hydrogenating plant flows in a pipeline through a heater and is then recycled to the hydrogenating plant. The heater consists of a fuelfired reheater, in which the separated gas is used as a fuel. The pipeline in which the high-hydrogen gas is recycled between the hydrogenating plant and the heater consists of an alloy steel, in which the carbon is combined in carbides with at least one of the alloying constituents chromium, molybdenum, tungsten or vanadium.

REFERENCES:
patent: 2524840 (1950-10-01), Shapleigh
patent: 2759799 (1956-08-01), Berg
patent: 2801159 (1957-07-01), Carton et al.
patent: 2911288 (1959-11-01), Viles

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