Producing sulfur-containing compositions from gaseous sulfur compounds
AssigneePhillips Petroleum Company
InventorRobert L. Horton
Life of this patent
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Abstract
At least one of sulfur dioxide and a gaseous hydrosulfide is contacted with at least one of a sulfur-containing salt and a gaseous basic nitrogen compound to produce a solid, sulfur-containing composition.
Claims56
A process comprising contacting at least one gas selected from the group consisting of sulfur dioxide and hydrogen sulfide with a dry sulfur-containing salt having a cationic portion selected from the group consisting of an alkali metal, an alkaline earth metal, a heavy metal, ammonium, alkyl ammonium and aryl ammonium, and an anionic portion selected from the group consisting of thiosulfite, thiosulfate, trithionate, tetrathionate, pentathionate and hexathionate to form a solid sulfur-containing composition.
A process comprising contacting gaseous sulfur dioxide and a gaseous hydrogen sulfide which comprises a mercaptan having less than about 7 carbon atoms with a gaseous basic nitrogen compound to form a solid, sulfur-containing composition.
A process comprising:
- (a) providing a first gas stream containing at least one of a first concentration of sulfur dioxide and a second concentration of a hydrosulfide;
- (b) determining the first concentration of sulfur dioxide and the second concentration of hydrosulfide in said first gas stream;
- (c) adjusting at least one of the first concentration and the second concentration so that the first gas stream contains both sulfur dioxide and hydrosulfide in a mole ratio between about 0.7:1 and about 1.3:1 to form a second gas stream;
- and
- (d) contacting said second gas stream with at least one material selected from the group consisting of a dry sulfur containing salt and a gaseous basic nitrogen compound to produce a third gas stream and a sulfur-containing composition.
A process comprising contacting a gaseous hydrosulfide represented by the formula RSH wherein R is a hydrocarbyl with a dry sulfur-containing salt to form a solid sulfur-containing composition.
Dependencies are inferred from the claim text.