Process for desulphurizing gasoline by adsorption

Details Process for desulphurizing gasoline by adsorption Process for desulphurizing gasoline by adsorption

2007-10-30

2007-10-30

Caldarola, Glenn (Department: 1764)

Mineral oils: processes and products

Refining

Sulfur removal

C208S088000, C208S211000, C208S238000, C208S299000

Reexamination Certificate

active

10898173

ABSTRACT:
The invention concerns a process for desulphurizing gasoline comprising a step for fractionating said gasoline under conditions in which a light fraction comprising the lightest thiophene compounds such as thiophene or methylthiophenes and a heavy fraction concentrating the heaviest aromatic sulphur-containing compounds are obtained. Said heavy fraction is treated by hydrodesulphurization, while the light fraction is brought into contact with a solid adsorbant to eliminate at least a portion of said light thiophene compounds.

REFERENCES:
patent: 6551501 (2003-04-01), Whitehurst et al.
patent: 2002/0166798 (2002-11-01), Debuisschert et al.
patent: 2003/0029776 (2003-02-01), Pradhan et al.
patent: 2003/0042175 (2003-03-01), Debuisschert et al.
patent: 2003/0116474 (2003-06-01), Towler et al.
patent: 1 057 879 (2000-12-01), None

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