Ruthenium-based catalyst for preparing cyclohexene through partial hydrogenation of benzene and preparation method of ruthenium-based catalyst

• Main Authors: WANG LEI, ZHAO LINMAO, LINGHU YAJIU, CHEN XUEWEI, ZHANG XIANGGUO, ZHANG CHUNYAN, WANG JICAI, HAO SHUFU, ZHANG FUCHANG, LI DECHAO, LIU GUOLIANG, HU FENGSHAN, LI YANG, TAKAMORI, ZHANG LIN
• Format: Patent
• Language: Chinese; English
• Published: 19.09.2023
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a ruthenium-based catalyst for preparing cyclohexene by partial hydrogenation of benzene and a preparation method thereof, the ruthenium-based catalyst comprises a reduced graphene oxide carrier, a ruthenium active component, a first auxiliary agent zinc and a second auxiliary agent aluminum, the ruthenium active component accounts for 1-10 wt% of the catalyst, the first auxiliary agent accounts for 0.05-1 wt% of the catalyst, the second auxiliary agent accounts for 0.01-0.1 wt% of the catalyst, and the balance is a carrier. The ruthenium-based hydrogenation catalyst is obtained by adopting a chemical precipitation reduction method, and reduced graphene oxide is adopted as a carrier for the first time to improve the specific surface area of a catalyst product, improve the catalytic activity of active metal ruthenium, improve the conversion rate of the catalyst to benzene and the selectivity of cyclohexene, and remarkably reduce the dosage of noble metal in the catalyst; the production