Desulfurization of hydrocarbon feed using gaseous oxidant
AssigneeSaudi Arabian Oil Company
InventorsAbdennour Bourane, Omer Refa Koseoglu
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Abstract
An apparatus and process for desulfurization of hydrocarbon feeds is disclosed in which pure nitrous oxide, or a mixture of nitrous oxide and oxygen or air, is used as a gaseous oxidant. Organosulfur compounds are converted to their corresponding oxides sulfones and/or sulfoxides in an oxidation reactor, and oxides are subsequently removed from the oxidation reactor effluent to recover a reduced sulfur-content hydrocarbon product.
Claims35
A process for reducing the content of organosulfur compounds in a liquid hydrocarbon feedstream comprising:
- contacting the feedstream with an oxidation catalyst and an oxidant consisting essentially of nitrous oxide at a temperature of at least 150° C. and in an oxidant-to-feedstream molar ratio of 10:1 to 1:1 to produce oxidized organosulfur compounds;
- and
- removing at least a majority of the oxidized organosulfur compounds from the treated feedstream.
A process for reducing the content of organosulfur compounds in a liquid hydrocarbon feedstream comprising:
- contacting the feedstream with an oxidation catalyst and an oxidant consisting essentially of nitrous oxide and a source of gaseous oxygen at a temperature of at least 150° C. and in an oxidant-to-feedstream volumetric ratio of 10:1 to 1:1 to produce oxidized organosulfur compounds;
- and
- removing at least a majority of the oxidized organosulfur compounds from the treated feedstream.
A process for reducing the content of organosulfur compounds in a liquid hydrocarbon feedstream comprising:
- forming a nitrous oxide oxidant by reaction of ammonia and oxygen;
- contacting the feedstream with an oxidation catalyst and an oxidant consisting essentially of the formed nitrous oxide oxidant, or consisting essentially of nitrous oxide and a source of gaseous oxygen, at a temperature of at least 150° C. and in an oxidant-to-feedstream volumetric ratio of 10:1 to 1:1 to produce oxidized organosulfur compounds;
- and
- removing at least a majority of the oxidized organosulfur compounds from the treated feedstream.
Dependencies are inferred from the claim text.