Hydrogen production from in situ partial burning of H.sub.2 S

Details Hydrogen production from in situ partial burning of H.sub.2 S Hydrogen production from in situ partial burning of H.sub.2 S

1983-09-29

1984-11-06

Doll, John

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

423571, 423573R, 423648R, C01B 1704

Patent

active

044811810

ABSTRACT:
Hydrogen is produced from hydrogen sulfide by coupling, in a single reaction zone, the partial oxidation of hydrogen sulfide to water and sulfur with the thermal decomposition of hydrogen sulfide to hydrogen and sulfur. When one mole of hydrogen sulfide is burned with a stoichiometric deficiency of oxygen, enough thermal energy is generated by the exothermic partial oxidation to effect the thermal dissociation of about two moles of hydrogen sulfide. The gas mixture exiting from the reaction zone is substantially instantaneously cooled by quenching with cooler gas of substantially the same composition to prevent significant recombination of hydrogen and sulfur. The thermal energy in the gas following the quench step is used to preheat the H.sub.2 S and to cause some dissociation before entry into the reaction zone.

REFERENCES:
patent: 4302434 (1981-11-01), Hellmer et al.
patent: 4439412 (1984-03-01), Behie et al.

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