Process for production of high-purity hydrogen

Details Process for production of high-purity hydrogen Process for production of high-purity hydrogen

1995-05-18

1998-04-21

Langel, Wayne

Chemistry of inorganic compounds

Hydrogen or compound thereof

Elemental hydrogen

481277, 481279, 422198, 422211, 423650, 423652, C01B 302, C01B 324, C01B 326

Patent

active

057414742

ABSTRACT:
There is a system for producing high-purity hydrogen by reforming a hydrocarbon and/or an oxygen atom-containing hydrocarbon to form a reformed gas containing hydrogen and separating the hydrogen from said gas. The system includes a hydrocarbon source, a water source, an oxygen source, a vaporization chamber connecting with the hydrocarbon source, the water source and the oxygen source, and a reforming chamber provided with a catalyst for steam reforming and partial oxidation and a hydrogen-separating membrane. The reforming chamber is thermally connected with the vaporization chamber. A process for producing high-purity hydrogen includes heating a reforming chamber provided with a hydrogen-separating membrane, feeding, into the reforming chamber, hydrocarbon, steam and oxygen or air to give rise to steam reforming and partial oxidation therein to produce a reaction gas, and passing the reaction gas through the hydrogen-separating membrane to recover high-purity hydrogen. The heat possessed by the portion of the reaction gas not permeable into the hydrogen-separating membrane and the heat generated by the partial oxidation are utilized for the heating and reforming of the hydrocarbon, water and oxygen or air.

REFERENCES:
patent: 2135694 (1938-11-01), Bardwell et al.
patent: 4391794 (1983-07-01), Silberring
patent: 4810485 (1989-03-01), Marianowski et al.
patent: 5229102 (1993-07-01), Minet et al.
patent: 5326550 (1994-07-01), Adris et al.

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