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철을 포함하고있는 촉매계를 이용한 고 선택성 산화반응 및 수소화반응에 관한 연구
이명우,이규완,남상성,최명재,전환섭,김성보 한국공업화학회 1999 응용화학 Vol.3 No.2
Iron catalysts supported on various support materials prepared by impregnation, coprecipitation, ion-exchanged, and iron based catalysts using structure of molecular sieves prepared by hydrothermal technique have been characterized by XRD, SEM, BET, H₂ and CO₂ Chemisorption, TPR, TPDC, NMR, NH₃-TPD, IR, and ESR techniques. The oxidation and hydrogenation experiments were carried out using a fixed-bed flow micro-reactor or a batch reactor equipped with an on-line gas chromatography. First, the catalytic activity of iron supported on dealuminated zeolite Y was examined and compared with that of the amorphous support system. Second, catalytic hydrogenation of CO₂ to hydrocarbons over iron catalysts supported on various materials such as Al₂O₃, Al₂O₃-MgO, Al₂O₃-LaO, and KY have been systematically studied. Third, direct oxidation of benzene to phenol over iron-based catalyst system was studied. These catalysts gave an improved yield and selectivity.