Method for more producing light oil by using hydrocarbon oil

• Main Authors: LU WEIMIN, WANG JIN, YANG KEYONG, CHANG XUELIANG, LI QIANG
• Format: Patent
• Language: Chinese; English
• Published: 11.05.2011
• Subjects: CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; 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

The invention discloses a method for more producing light oil, comprising the following steps of: enabling hydrocarbon oil to contact with a cracking catalyst under the conditions of catalytic cracking, wherein the contacting condition makes the transformation ratio of the hydrocarbon oil be 50-73wt%; cutting and separating the catalytic cracking products according to the order of boiling points to obtain rich gas, crude gasoline fraction, light diesel fuel fraction, heavy diesel fuel fraction, refining oil fraction and slurry oil; carrying out solvent deasphalting on a part of or all of the obtained slurry oil to obtain solvent deasphalting oil with the distillation range of 250-600 DEG C; mixing the obtained solvent deasphalting oil with the obtained heavy diesel fuel fraction and refining oil fraction and then contacting with a hydro-upgrading catalyst, wherein the contact condition makes the yield of hydrogenised heavy oil be 70-99wt%; carrying out the separation reaction on the mixture to obtain gas, lig