Hydrodesulfurisation of hydrocarbon oils

• Main Authors: TAO, ZHIPING, LI, JIAN, XIA, GUOFU, ZHANG, RUNQIANG, ZHU, MEI, HUANG, HAITAO, RAN, GUOPENG, MIN, ENZE, NIE, HONG, LI, MINGFENG, SHI, YAHUA, PANG, GUICI
• Format: Patent
• Language: English; French; German
• Published: 14.06.2006
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; 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

A conversion process of hydrocarbon oils comprises at least a hydrodemercaptanization process, wherein said hydrodemercaptanization process comprises contacting a feedstock with a hydrofining catalyst containing a tungsten oxide and/or a molybdenum oxide, a nickel oxide and a cobalt oxide supported on an alumina under the conditions of hydrodemercaptanization, in which the content of said tungsten oxide and /or molybdenum oxide is from 4 wt % to less than 10 wt %, the nickel oxide content is 1 SIMILAR 5wt %, the cobalt oxide content is 0.01 SIMILAR 1wt % based on the catalyst, and the ratio of total atom number of nickel and cobalt to total atom number of nickel, cobalt, tungsten and/or molybdenum is 0.3 SIMILAR 0.9. Said process can be carried out at a lower temperature and a lower H/oil volume ratio.