Journal
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
Volume 372, Issue -, Pages 121-127Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molcata.2013.02.015
Keywords
1-Butene; Propene; Olefin metathesis; Molybdenum; Mordenite-alumina
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Funding
- National Natural Science Foundation of China [20903088, 21006104]
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A series of Mo/mordenite-alumina catalysts with progressive sodium exchange degrees in mordenite were prepared and their performance in 1-butene metathesis reaction was evaluated. Significant variations in product distribution and catalytic activity were observed when the exchange degree of mordenite changed. As revealed by NH3-TPD and H-1 MAS NMR results, the acid site density and distribution over the catalysts were directly related to the degree of ion-exchange of sodium in mordenite. The change of support acidity led to different anchoring modes and dispersion of Mo species on the support which further resulted in the different reduction behavior of Mo species under olefin atmosphere. A good correlation between product distribution and properties of the catalysts was proposed. (C) 2013 Elsevier B.V. All rights reserved.
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