Effect of promoters on hydrogenation of diethyl malonate to 1,3-propanediol over nano copper-based catalysts |
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| Affiliation: | 1. School of Environmental Science and Engineering, the State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China;2. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, Liaoning, China;1. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;2. School of Chemical Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, China;3. Yangmei Group Taiyuan Chemical New Material Co. Ltd., Taiyuan 030001, China;4. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;5. PetroChina Petrochemical Research Institute, Beijing 100195, China;1. Synfuels China Co. Ltd., Beijing 030006, PR China;2. University of Chinese Academy of Sciences, Beijing 100049, PR China;3. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China |
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| Abstract: | Copper-based catalysts were prepared via ammonia evaporation co-precipitation method. Structure evolutions of the catalysts were systematically characterized by XRD, FTIR, TG, SEM, N2-physisorption, ICP-AES, N2O chemisorption and XPS focusing on the influence of promoters on the catalytic behavior in the hydrogenation of diethyl malonate to 1,3-propanediol. The results showed that diethyl malonate conversion and 1,3-propanediol selectivity could reach 96.71% and 29.76% respectively at 473 K with 2.0 MPa and 1.8 h− 1 with boron as promoter. The improved catalytic performance of Cu-B/SiO2 catalyst could be attributed to more Cu0 formed with the inhibition of copper phyllosilicate and better dispersion of copper species. |
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