Fe modified-Silicalite-1 loaded GaN catalyst and catalytic application thereof

• Main Authors: LIU ZHAOTIE, WANG ZHONGYU, WANG KUAN, CHEN JIANGANG, LI LONGYAO, HE ZHENHONG
• Format: Patent
• Language: Chinese; English
• Published: 02.07.2021
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a Fe modified-Silicalite-1 loaded GaN catalyst and catalytic application thereof. The catalyst takes GaN as an active component and a Fe modified-Silicalite-1 molecular sieve with the Si/Fe mass ratio of 500-5000 as a carrier, an impregnation method is adopted, Fe modified-Silicalite-1 molecular sieve powder is impregnated in a solution containing an N source and a Ga source, the Fe modified-Silicalite-1 molecular sieve powder is dried after being ultrasonically dispersed to be uniform and then roasted in an inert atmosphere, and tabletting, granulating and screening are conducted to obtain the catalyst. The catalyst disclosed by the invention has the characteristics that Fe in a Silicalite-1 molecular sieve framework or a pore channel and an active component GaN have certain interaction, so that the catalyst has excellent performance in a CO2 propane oxide dehydrogenation reaction, and under a high-temperature condition, the conversion rate of propane is up to 59.1%, and the yield of