Process for the desulfurization of light FCC naphtha

Details Process for the desulfurization of light FCC naphtha Process for the desulfurization of light FCC naphtha

2006-01-10

2006-01-10

Griffin, Walter D. (Department: 1764)

Mineral oils: processes and products

Refining

Sulfur removal

C208S20800M, C208S210000, C208S212000, C208S213000

Reexamination Certificate

active

06984312

ABSTRACT:
A process for the treatment of a light cracked naphtha is disclosed wherein the light cracked naphtha is first subjected to thioetherification and fractionation into two boiling fractions. The lower boiling fraction is removed as overheads for later recombination with the product and the higher boiling fraction is combined with a heavy cracked naphtha and subjected to simultaneous hydrodesulfurization and fractionation to separate the higher boiling fraction from the heavy cracked naphtha which is recycled. The recycled heavy cracked naphtha is eventually desulfurized and hydrogenated to produce a clean solvent which washes the catalyst and extends catalyst life.

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