Preparation method of hydrogenation debenzolization catalyst, catalyst and application

• Main Authors: PENG CHENGHUA, LI JIE, LI HONGJIE, CAI JIANCHONG, FU YUMEI, YANG FENG
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2022
• 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

The invention relates to the field of gasoline hydrogenation debenzolization, and particularly discloses a preparation method of a hydrogenation debenzolization catalyst. The preparation method of the hydrogenation debenzolization catalyst comprises the following steps: S1, uniformly mixing mixed carrier powder, a molybdenum-containing solution or/and a nickel-containing solution, a binder and an auxiliary agent, and fully kneading; s2, carrying out extrusion molding, drying and roasting on the material obtained in the S1 to obtain a carrier; and S3, dipping the carrier in a copper-containing solution or/and a zinc-containing solution, and drying and roasting the carrier, the mixed carrier powder is composed of 20-60 parts by weight of a modified molecular sieve, 10-25 parts by weight of titanium dioxide and 20-55 parts by weight of aluminum powder. According to the catalyst disclosed by the invention, benzene in gasoline can be selectively hydrogenated to produce cyclohexane, so that the benzene content in r