Process for the desulfurization of gasolines comprising a...

Details Process for the desulfurization of gasolines comprising a... Process for the desulfurization of gasolines comprising a...

2007-06-25

2010-06-08

Hill, Jr., Robert J (Department: 1797)

Mineral oils: processes and products

Refining

Sulfur removal

C208S227000, C208S243000, C208S244000, C208S299000

Reexamination Certificate

active

07731836

ABSTRACT:
The invention relates to a process for the desulfurization of gasolines comprising a stage for fractionation of said gasoline into a light fraction that comprises thiophenic compounds such as thiophene or methylthiophenes, and a heavy fraction that concentrates the heaviest aromatic sulfur-containing compounds. The heavy fraction is treated by hydrodesulfurization, while the light fraction is brought into contact with a solid adsorbent that makes it possible to eliminate at least partially said light thiophenic compounds, whereby said adsorbent solid is regenerated by a flow internal to the process.

REFERENCES:
patent: 5011805 (1991-04-01), Dessau
patent: 6482316 (2002-11-01), Bal
patent: 2003/0042175 (2003-03-01), Debuisschert et al.
patent: 2005/0061712 (2005-03-01), Nicolaos et al.
patent: 2005/0092655 (2005-05-01), Nicolaos et al.
Gary, J. and Handwerk, G. (1994) Petroleum Refining: Technology and Economics, 3rd ed. New York: Marcel Dekker.

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