Process for refining crude oils having high organic acidity

Details Process for refining crude oils having high organic acidity Process for refining crude oils having high organic acidity

C - Chemistry, Metallurgy

10

G

C10G 29/20 (2006.01) C10G 11/18 (2006.01)

Patent

CA 2452327

The invention relates to a method of refining crude oils having high acidity by neutralising the organic acidity thereof. The inventive method consists in adding a nitrogenous compound to the crude oil. Said method is characterised in that a nitrogenous compound containing at least three carbon atoms, a secondary amine group and a hydric group is introduced at at least one point of the crude oil pre-treatment units upstream of, or in the atmospheric distillation unit.

L'invention a pour objet un procédé de raffinage par neutralisation de l'acidité organique des pétroles bruts à forte acidité consistant à ajouter un composé azoté au dit pétrole brut, le dit procédé étant caractérisé en ce qu'on introduit en au moins un point des unités de prétraitement de pétrole brut en amont de, ou dans l'unité de distillation atmosphérique, un composé azoté comprenant au moins trois atomes de carbone, un groupe amine secondaire et un groupe hydroylé.

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