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.
本发明涉及一种通过中和有机酸性来提炼高酸度原油的方法。本发明的方法是在原油中加入
含氮化合物。该方法的特点是,在原油预处理装置的上游或常压蒸馏装置中的至少一点加入至少含有三个碳原子、一个仲胺基团和一个
水合基团的
含氮化合物。