Process comprising two gasoline hydrodesulfurization stages...

Details Process comprising two gasoline hydrodesulfurization stages... Process comprising two gasoline hydrodesulfurization stages...

2005-12-06

2005-12-06

Griffin, Walter D. (Department: 1764)

Mineral oils: processes and products

Refining

Sulfur removal

C208S211000, C208S082000, C208S21600R, C208S217000, C208S218000, C208S20800M, C208S209000, C208S213000, C208S088000, C208S089000

Reexamination Certificate

active

06972086

ABSTRACT:
The invention relates to a process for the production of gasoline with a low sulfur content comprising at least three stages: a first stage in which the sulfur-containing compounds present in the gasoline are at least partially transformed into H2S and into saturated sulfur-containing compounds; a second stage whose purpose is to eliminate the H2S from the gasoline produced in the first stage; and a third stage in which the saturated sulfur-containing compounds remaining in the gasoline are transformed into H2S. The process according to the invention optionally also comprises a pretreatment stage whose purpose is to hydrogenate the diolefins of the feedstock before the first stage.

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