......DE..ESFRGB..IT....NLSE....................................................JA request for correction of the description, claims and abstract have been filed pursuant to Rule 88 EPC. A decision on the request will be taken during the proceedings before the Examining Division (Guidelines for Examination in the EPO, A-V, 3.).0794241EUROPEAN PATENT APPLICATIONA319980211EP97660024.719970305fienen961012 19960305FI19980211199807199709101997376 6C 10G 45/44 AdeVerfahren zur Desaromatisierung von ErdöldistillatenenProcess for dearomatization of petroleum distillatesfrProcédé pour la désaromatisation de distillats pétrolièresNONENESTE OY00467530NEST 36 EPKeilaniemiSF-02150 Espoo 15FIAittamaa, JuhaniParikkalantie 2200920 HelsinkiFIIgnatius, JyrkiSuorannantie 2106450 PorvooFILindgren, EsaKurjentie 3 G06100 PorvooFILonka, SirpaValkovuokontie 4 D01350 VantaaFIMarkkanen, VarpuVaaralankulma 11 C01230 VantaaFISundman, Christofferet al00081821Seppo Laine Oy, Lönnrotinkatu 19 A00120 HelsinkiFIDEESFRGBITNLSE19980211199807

The invention concerns a process for dearomatization of petroleum distillates, wherein a distillate feedstock containing aromatic compounds is fed into a hydrotreating process unit, in which its aromatic compounds are hydrogenated. According to the invention at least two of the following petroleum distillates a to c are hydrogenated in the same hydrotreating process unit: a) a solvent cut having a boiling point range of 60 to 270 °C, b) a middle distillate having a boiling point range of 180 to 320 °C, and c) a naphtha having a a boiling point range of 20 to 190 °C. The temperature rise in the reaction zone is limited to less than 60 °C by cooling the effluent of the reaction zone and recycling a part of it to the reaction zone. By means of the invention it is possible substantially to reduce investment costs for dearomatization units, because several different kinds of products can be treated in the same unit.