Sandwich-structure catalyst for preparing light gasoline through hydrogenation of carbon dioxide as well as preparation method and application of sandwich-structure catalyst

• Main Authors: ZHANG ZHIYUAN, GUO LISHENG, SUN SONG, WEI YUXUE
• Format: Patent
• Language: Chinese; English
• Published: 02.02.2024
• 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 discloses a sandwich-structure catalyst for preparing light gasoline through carbon dioxide hydrogenation and a preparation method and application thereof, and the preparation method comprises the following steps: adding iron salt and copper salt into a solvent to form a metal salt solution, adding a precipitator, and stirring to form a suspension a; adding a reducing agent a, and then carrying out hydrothermal reaction to obtain CuFeO2; adding a reducing agent b into a solvent to form a reducing agent solution, then adding graphene oxide, and then adding CuFeO2 to obtain a suspension b; performing stirring and ultrasonic treatment on the suspension b, performing microwave treatment, and washing and drying the product to obtain the product. The catalyst has a unique lamellar structure, CuFeO2 particles are dispersed and anchored in the lamellar structure of graphene oxide, the selectivity of light gasoline components reaches up to 89.6%, meanwhile, the catalyst has the high CO2 conversion rate,