Process for the selective desulfurization of a mid range...

Details Process for the selective desulfurization of a mid range... Process for the selective desulfurization of a mid range...

2008-04-01

2008-04-01

Nguyen, Tam M. (Department: 1797)

Mineral oils: processes and products

Refining

Sulfur removal

C209S213000, C209S212000, C209S213000, C209S210000, C585S259000, C585S260000, C585S264000

Reexamination Certificate

active

10820399

ABSTRACT:
A process for concurrently fractionating and treating a full range naphtha stream. The full boiling range naphtha stream is first subjected to simultaneous thioetherification and splitting into a light boiling range naphtha, an intermediate boiling range naphtha and a heavy boiling range naphtha. The intermediate boiling range naphtha containing thiophene and thiophene boiling range mercaptans is passed on to a polishing hydrodesulfurization reactor where a low sulfur, low olefin gas oil is concurrently fed to the polishing reactor to insure that a liquid phase is present.

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