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Chemcial Industry and Engineering 2021, Vol. 38 Issue (5) :27-34    DOI: 10.13353/j.issn.1004.9533.20201022
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Study on Ru-Ni Bimetallic Catalyst for Phthalate Hydrogenation
Li Wensi, Wang Yan, Xu Yan, Zhao Yujun, Li Guobing
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China

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Abstract A series of bimetallic Ru-Nix/AC catalysts were prepared by impregnation method and characterized by X-ray diffraction (XRD), temperature programmed reduction (H2-TPR), CO pulse adsorption and so on. The catalysts were evaluated in the hydrogenation of dioctyl phthalate (DOP) and the effect of Ni was discussed. We found that the selectivity to di(2-ethylhexyl)-1,2-cyclohexane diester of the Ru/AC catalyst was significantly improved by the introduction of Ni dopant (99.7%), which was much higher than that (77.7%) of the catalyst without Ni dopant. The catalytic activity will increase as the specific gravity of Ni increases, and the hydrogenation activity will reach the maximum when the Ru-Ni ratio is 0.6:5.0. According to the H2-TPR results, the reduction temperature of Ni metal can be remarkably decreased due to the interaction with Ru metal, further suggesting the synergistic effect between Ru and Ni.
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Articles by authors
Li Wensi
Wang Yan
Xu Yan
Zhao Yujun
Li Guobing
Keywordsphthalates   catalysis hydrogenation   Ru   Ni   synergistic effect     
Received 2020-12-08;
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Li Wensi, Wang Yan, Xu Yan, Zhao Yujun, Li Guobing.Study on Ru-Ni Bimetallic Catalyst for Phthalate Hydrogenation[J]  Chemcial Industry and Engineering, 2021,V38(5): 27-34
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