Deactivation of supported skeletal Ni catalyst and effect of regeneration temperature on its catalytic performance |
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| Affiliation: | 1. Department of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China;2. College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China;1. Department of Organic Chemistry, University of Alcala, 28871 Alcala de Henares, Madrid, Spain;2. Department of Organic Chemistry. University of Alicante, Ap. 99, 03080 Alicante, Spain;1. Department of Chemical Engineering, University of Wyoming, Laramie, WY 82071, USA;2. Idaho National Laboratory, Idaho Falls, ID 83415, USA;3. Department of Chemistry, University of Wyoming, Laramie, WY 82071, USA;4. National Institute of Clean and Low Carbon Energy, Beijing 102211, China;5. School of Energy Resources, University of Wyoming, Laramie, WY 82071, USA;6. Department of Petroleum Engineering, University of Wyoming, Laramie, WY 82071, USA |
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| Abstract: | Deactivation and regeneration of supported skeletal Ni catalyst applied to hydrogenation of indene and styrene in fixed-bed reactor were investigated. The significant aggregation of skeletal Ni and formation of coke precursors were the main reasons for deactivation of catalyst. Furthermore, TG-DTA, XRD, SEM, BET and H2-TPR were utilized to characterize the regenerated catalysts and calcining the spent catalysts in air at 550 °C for 3 h and then reducing in H2 at 450 °C for 3 h under 240 h− 1 (GHSV) could recover its activity according to hydrogenation evaluation results. |
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