Journal
FUEL PROCESSING TECHNOLOGY
Volume 92, Issue 10, Pages 2011-2015Publisher
ELSEVIER
DOI: 10.1016/j.fuproc.2011.05.026
Keywords
P-methyl acetephenone; HPW/TiO2; Toluene; Acetic anhydride
Funding
- National and Tianjin Natural Science Foundation of China [21006071, 30900092, 09JCYBJC03000]
- Natural Science Foundation of Tianjin Education Committee [20070607]
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P-methyl acetephenone synthesis from toluene and acetic anhydride over HPW(H3PW12O40)/TiO2 was carefully studied, and catalysts were characterized by BET, XRD and NH3-TPD. The characterized results displayed that the interaction between HPW and TiO2 prevented the loss of acidic protons from HPW to form the weak Lewis acid sites over HPW/TiO2. The weak acid sites over HPW/TiO2 came into being in case of much more HPW being loaded onto TiO2 or HPW/TiO2 being calcined at high temperature. The reaction results suggest that p-methyl acetephenone yield and selectivity depended on the acidity of catalysts, and the appearance of weak Lewis acid sites over HPW/TiO2 resulted in p-methyl acetephenone yield decline. (C) 2011 Elsevier B.V. All rights reserved.
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