Process consisting of two stages of gasoline...

Details Process consisting of two stages of gasoline... Process consisting of two stages of gasoline...

C - Chemistry, Metallurgy

10

G

C10G 67/00 (2006.01) C10G 65/04 (2006.01) C10G 67/02 (2006.01) C10G 67/06 (2006.01)

Patent

CA 2352408

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.

L'invention concerne un procédé de production d'essence à faible teneur en soufre comprenant au moins trois étapes : une première étape dans laquelle les composés soufrés présents dans l'essence sont au moins partiellement transformés en H2S et en composés soufrés saturés, une deuxième étape visant à éliminer l'H2S de l'essence produite dans la première étape et une troisième étape dans laquelle les composés soufrés saturés restant dans l'essence sont transformés en H2S. Le procédé selon l'invention comprend éventuellement en outre une étape de prétraitement visant à hydrogéner les dioléfines de la charge avant la première étape.

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