Abstract
Zn-modified SAPO-34 zeolites with different SAPO-34 intermediates were prepared by an impregnation method, and their catalytic performance in MTO reaction was systematically studied. The physicochemical properties of all samples were characterized by XRD, SEM, N2 adsorption-desorption, NH3-TPD, FTIR, and XRF. The results show that the template, here TEA, has a protective effect on Templated-SAPO-34 structure during aqueous Zn modification process, which affects the structural integrity of Zn/Temp.-SAPO-34 zeolite and thus determines its product distribution. The prepared Zn/Temp.-SAPO-34 zeolite is a highly selective catalyst for ethene production from methanol, with the highest reported ethene to propene ratio of 2.00.
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This work is supported by China University of Petroleum for Postgraduate Technology Innovation Project (YCX2019036).
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Huang, H., Yu, M., Zhang, Q. et al. Protective Effect of TEA on Templated-SAPO-34 Structure During Aqueous Zn Modification Process. Catal Lett 150, 3269–3275 (2020). https://doi.org/10.1007/s10562-020-03211-1
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DOI: https://doi.org/10.1007/s10562-020-03211-1