Process for removing essentially naphthenic acids from a hydrocarbon oil

摘要

PCT No. PCT/NO95/00142 Sec. 371 Date Feb. 27, 1997 Sec. 102(e) Date Feb. 27, 1997 PCT Filed Aug. 29, 1995 PCT Pub. No. WO96/06899 PCT Pub. Date Mar. 7, 1996A process for removing essentially naphthenic acids from a crude oil which has not previously been fractionated by distillation, or from which only a naphtha fraction has been distilled. The crude oil is hydrogenated at 1-50 bars and 100-300 DEG C. over a catalyst of the kind used for hydrogenation of atmospheric residue oils. As a catalyst, especially Ni-Mo or Ni-Co deposited on alumina as a carrier material is used.