Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1989-02-08
1989-12-12
Stoll, Robert L.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
502306, C01B 1716, C01B 3120
Patent
active
048866490
ABSTRACT:
A starting hydrogen sulfide-containing gas is purified by way of a two-stage oxidation to elemental sulfur with oxygen which is supplied in an amount of 100-110% of the stoichiometric quantity necessary for oxidizing hydrogen sulfide to elemental sulfur. Oxidation at the first stage is carried out in a fluidized bed of a granular catalyst containing 10-20% by mass of magnesium chromite on aluminium oxide. At the second oxidation stage, the unreacted hydrogen sulfide and oxygen from the first stage are reacted at 140.degree.-155.degree. C. in the presence of a catalyst to form elemental sulfur.
The invention may be used in decontamination of natural gases high in hydrogen sulfide, gas releases of oil refinery and coke chemical plants.
REFERENCES:
patent: 4519992 (1985-05-01), Alkhazob
patent: 4690806 (1987-09-01), Schorfheide
Alkhazov Tofik G.
Barannik Georgy B.
Ismagilov Foat R.
Ismagilov Zinfer R
Ivanov Alexei A.
Freeman Lori S.
Stoll Robert L.
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