PRODUCTION OF WAX-CONTAINING PRODUCT

• Main Authors: SWIEGERS GODLIEB GERHARDUS, RICHTER FERDINAND DR, VAN ZYL VISSER ADRIE
• Format: Patent
• Language: English
• Published: 05.10.1999
• Edition: 6
• Subjects: CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; LUBRICATING COMPOSITIONS; METALLURGY; MINERAL WAXES; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; 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; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION

PROBLEM TO BE SOLVED: To suitably produce a lube base oil by subjecting a feed material contg. a Fischer-Tropsch wax and a petroleum-based wax-contg. oil to hydrotreatment to give a series of hydrogenation products and recovering therefrom a wax-contg. product. SOLUTION: The vol. ratio of a Fischer-Tropsch wax to a petroleum-based wax-contg. oil in the feed material is pref. (5:95)-(20:80). The hydro-treatment comprises the hydrocracking of the feed material at the hydrocracking stage. The hydrocracking can be performed pref. at 350-400 deg.C under a pressure of 120-160 bar (g) under a hydrogen partial pressure of 100-175 bar (g) at a hydrogen to liquid ratio of 200-2,000/1 mn at a liquid hourly space velocity of 0.2-1 h<-1> . The recovery of the wax-contg. product comprises the distillation of a series of hydrogenation products at the distillation step to obtain the wax-contg. product as the bottom fraction.