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Effect of hydrogen spillover on the hydrogenation of 1-hexene over diluted carbon molecular sieve supported Pt catalyst |
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| Authors: | Honglin Chen Hong Yang Yevgenia Briker Craig Fairbridge Oladipo Omotoso Lianhui Ding Ying Zheng Zbigniew Ring |
| Affiliation: | aNational Centre for Upgrading Technology, Devon, AB, Canada T9G 1A8 bAdvanced Separation Technologies, Devon, AB, Canada T9G 1A8 cDepartment of Chemical Engineering, University of New Brunswick, Fredericton, NB, Canada E3B 5A3 |
| Abstract: | Pt supported on a carbon molecular sieve (Pt/CMS) was prepared by pyrolysis of polyfurfuryl alcohol containing pre-reduced Pt particles. The catalysts were characterized by hydrogen chemisorption, XRD, N2 adsorption/desorption and TEM. Hydrogen chemisorption showed that not all the Pt particles were exposed to H2 molecules. Oxidation treatment made Pt particles more accessible to H2. Catalyst activity was evaluated by hydrogenation of 1-hexene. Hydrogen spillover was demonstrated by diluting Pt/CMS with activated carbon or hydrogen type zeolite Y. The initial conversion of 1-hexene was increased from 86.5% to 98.5% and to 100% when Pt/CMS was diluted with activated carbon and hydrogen type zeolite, respectively. The high initial conversion was sustained for 6 h in the presence of diluents while the conversion decreased quickly for Pt/CMS alone. |
| Keywords: | Pt Carbon molecular sieve Hydrogenation of 1-hexene Hydrogen spillover |
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