Method of removing halogenated aromatic compound from hydrocarbon oil

摘要

PCT No. PCT/JP93/00036 Sec. 371 Date Apr. 29, 1994 Sec. 102(e) Date Apr. 29, 1994 PCT Filed Jan. 11, 1993 PCT Pub. No. WO93/25635 PCT Pub. Date Dec. 23, 1993.A safe and reliable method of removing halogenated aromatic compounds present in small amounts in hydrocarbon oil constituted mainly by non-aromatic hydrocarbon oil. The hydrocarbon oil is contacted with a heat-resistant alkaline polar solvent in the presence of an alkaline at a temperature ranging from about 100 DEG C. to 300 DEG C., and the non-aromatic hydrocarbon oil and heat-resistant alkaline polar solvent are then separated, thereby removing the halogenated aromatic compounds from the hydrocarbon oil.