Patent Number: 7,708,967

Title: Process for disposal of mercaptans

Abstract: The invention provides a process for disposal of mercaptans, the process comprising the steps of: (a) contacting a feed gas stream comprising mercaptans with liquid sulphur in a sulphide producing zone at elevated pressure and at a temperature in the range of from 300 to 450.degree. C. to obtain a liquid stream comprising sulphur and sulphide compounds; (b) optionally separating the liquid stream obtained in step (a) into a first liquid phase enriched in liquid sulphur and a second liquid phase enriched in sulphide compounds; (c) combusting at least part of the sulphide compounds at elevated temperature in the presence of an oxygen-containing gas in a sulphur dioxide generation zone using a sulphide burner to which burner oxygen-containing gas is supplied, whereby at least part of the sulphide compounds is converted to sulphur dioxide to obtain a gas stream comprising sulphur dioxide.

Inventors: Mesters; Carolus Matthias Anna Maria (Amsterdam, NL), Smit; Cornelis Jacobus (Amsterdam, NL)

Assignee: Shell Oil Company

International Classification: B01D 53/48 (20060101); C01B 17/04 (20060101); C01B 17/48 (20060101); C01B 17/52 (20060101); C10L 3/10 (20060101)

Expiration Date: 5/04/12018