Abstract
The selectivity of propylene was constant at 20% during continuous experiments for 8 h on HZSM-5. However, HLEV catalysts produced almost no C3H6 after 2 h. The rapid change is probably due to coke deposition. Excessive adsorption of ethanol on HLEV leads to coke deposition. Lower adsorption energy of ethylene on HLEV makes ethylene desorb quickly after formation.
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Acknowledgements
This work is a project sponsored by the National Natural Science Foundation of China (Grant 21406269), Shandong Provincial Natural Science Foundation, China (Grant ZR2014BQ012), Scientific Research Foundation for Returned Scholars, Ministry of Education of China (K1504051C), Shandong Provincial Key Research Program (Grant: 2015GSF121017), the Fundamental Research Funds for the Central Universities (15CX05013A) and the International Cooperation and Exchange Fund, China University of Petroleum (East China) (UPCGJ2018010).
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Wang, F., Xia, W., Mu, X. et al. Experimental and Molecular Simulation Studies on Ethanol Conversion to Propylene Over Different Zeolite Catalyst. Catal Lett 148, 1768–1774 (2018). https://doi.org/10.1007/s10562-018-2375-7
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DOI: https://doi.org/10.1007/s10562-018-2375-7