METHODS AND APPARATUSES FOR REMOVING SULFUR COMPOUNDS FROM A HYDROCARBON STREAM

摘要

Methods and apparatuses are provided for removing sulfur compounds from a hydrocarbon stream. A method includes contacting a hydrocarbon feed stream with a basic aqueous solution in an extractor to produce a sweetened hydrocarbon stream and a rich stream, where the rich stream includes a mercaptan salt. The rich stream is contacted with oxygen in an oxidizer to convert the mercaptan salt into a disulfide and to produce an oxidizer effluent stream. The oxidizer effluent stream is separated into a gas recycle stream and a mixed disulfide stream, and the gas recycle stream is combined with the rich stream.

主权项

1. A method for removing sulfur compounds from a hydrocarbon stream comprising:
contacting a hydrocarbon feed stream with a basic aqueous solution in an extractor to produce a sweetened hydrocarbon stream and a rich stream, wherein the rich stream comprises a mercaptan salt; contacting the rich stream with oxygen in an oxidizer to convert the mercaptan salt into a disulfide and to produce an oxidizer effluent stream comprising the disulfide; separating the oxidizer effluent stream into a gas recycle stream and a mixed disulfide stream; and combining the gas recycle stream with the rich stream, wherein the gas recycle stream comprises oxygen.