The Effect of Preparation Methods on the Structure of CuO-Cr2O3 Catalysts and the Catalytic Performances in the Hydrogenation of 2-Propyl-2-Heptenal
1. Beijing Institute of Petrochemical Technology, Beijing 102617, China;
2. Beijing Key Laboratory of Enze Biomass Fine Chemical, Beijing 102617, China;
3. CNOOC Refining & Chemical Research Institute, Beijing 102209, China
Abstract：A series of CuO-Cr2O3 composite oxide catalysts were prepared by co-precipitation method and hydrolysis gel evaporation method. The textual properties of the catalysts were characterized by X-ray diffraction (XRD), N2 adsorption-desorption and temperature-programmed reduction by H2 (H2-TPR). The characterization results showed that the CuO-Cr2O3 catalyst prepared by hydrolysis gel evaporation method possessed larger specific surface area and uniform CuO particle dispersion than that prepared by co-preparation method. And the formation of CuCrO4 and other species were hindered by the addition of oxalic acid during the synthesis process. As a result, the CuO-Cr2O3 catalyst prepared by the hydrolysis gel evaporation method exhibited better. The conversion of 2-propyl-2-heptenal was above 99.99% and selectivity of 2-propyl-1-heptanol was 98.9%.
WANG Qifeng1,2,ZHAO Yu1 et al. The Effect of Preparation Methods on the Structure of CuO-Cr2O3 Catalysts and the Catalytic Performances in the Hydrogenation of 2-Propyl-2-Heptenal[J]. 化学反应工程与工艺, 2020, 36(5): 421-427.
