processo para a produÇço de àleos e de destilados mÉdios de alta qualidade a partir de uma carga hidrocarbonada, em que pelo menos 20% de volume ferve acima de 340°c, bem como instalaÇço para a produÇço de àleos de elevada qualidade e eventualmente de destilados mÉdios de elevada qualidade

• Main Authors: ERIC BENAZZI, ALAIN BILLON, PIERRE MARION, JEAN-CLAUDE HIPEAUX, JEAN-PAUL GOUZARD, CHRISTOPHE GUERET
• Format: Patent
• Language: Portuguese
• Published: 14.12.2010
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS; LUBRICANTS; LUBRICATING COMPOSITIONS; METALLURGY; MINERAL WAXES; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION

The invention concerns an improved method for making high-quality basic oils optionally with simultaneous production of high-quality middle distillates, comprising hydrotreatment steps, preferably hydrocracking, on Y or beta zeolite, atmospheric distillation. The effluent (which is not vacuum-distilled) is subjected to catalytic dewaxing, preferably on NU-10, EU-1, EU-13 zeolite or ferrierite. The method then comprises steps of hydrofinishing to hydrogenate the aromatics, preferably on a catalyst comprising at least one noble metal of group VIII, chlorine and fluorine, and steps of atmospheric and vacuum distillation. The properties of the oils and the middle distillates are enhanced (flow point, viscosity index, aromatic content) resulting even in to medicinal oils.