Patent Number: 8,574,539

Title: Process for selective oxidation of hydrogen sulphide

Abstract: The present invention provides a process for the selective oxidation of hydrogen sulphide in a hydrogen sulphide-containing hydrocarbon and/or hydrogen feed gas to elemental sulphur in a reaction zone containing a Claus catalyst, comprising the steps of: i) reacting in the reaction zone the hydrogen sulphide in the hydrogen sulphide-containing hydrocarbon and/or hydrogen feed gas with sulphur dioxide at a pressure in the range of from 4 to 200 bar (absolute) and a temperature in the range of from 120 and 160.degree. C., such that the elemental sulphur formed is essentially in liquid form; ii) contacting the catalyst with a reducing atmosphere at elevated temperatures.

Inventors: Schoonebeek; Ronald Jan (Amsterdam, NL), Wadman; Sipke Hidde (Amsterdam, NL)

Assignee: Shell Oil Company

International Classification: C01B 17/04 (20060101)

Expiration Date: 1/05/12017