Partial oxidation of hydrogen sulphide

Details Partial oxidation of hydrogen sulphide Partial oxidation of hydrogen sulphide

2008-04-08

2008-04-08

Vanoy, Timothy C. (Department: 1793)

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

C423S576800, C423S245300

Reexamination Certificate

active

10505621

ABSTRACT:
A method of conducting the partial oxidation to sulphur in at least one furnace of part of the hydrogen sulphide content of a feed gas mixture containing from 10 to 60% by volume of hydrogen sulphide but including at least one aromatic hydrocarbon impurity typically selected from benzene, xylene, toluene and ethyl benzene. A flame is created in the furnace. All the feed gas mixture is fed to the flame. Oxygen molecules are also fed to the flame. At last some of the oxygen molecules are supplied from a source of oxygen-enriched air to pure oxygen, and there is created in the flame at least one hot aromatic hydrocarbon impurity destruction region in which a substantial proportion, typically at least 75% by volume, of the aromatic hydrocarbon impurity is destroyed.

REFERENCES:
patent: 4394119 (1983-07-01), Waller et al.
patent: 4933163 (1990-06-01), Fischer et al.
patent: 6495117 (2002-12-01), Lynn
patent: 2002/0015675 (2002-02-01), Watson et al.
patent: 2003/0194366 (2003-10-01), Srinivas et al.

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