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- W2065655726 abstract "A series of vanadium pyrophosphate oxide catalysts were prepared by thermally treating catalyst precursor VOHPO4·0.5H2O in the temperature range of 500–900 °C in nitrogen and their catalytic activities were evaluated in glycerol dehydration with molecular oxygen. The catalysts were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, thermogravimetric–differential thermal analysis and temperature programmed desorption of ammonia. The dehydration activity depends on treatment temperature on the catalyst precursor; the catalyst treated at 800 °C exhibits the best result with 100% glycerol conversion and more than 95% selectivity for useful products, including acrolein (64%), acetaldehyde, acetic acid and hydroxyacetone. We observed that the addition of molecular oxygen into reaction could greatly reduce the selectivity for by-products from 20% to 4% and can avoid coke formation. The dehydration activities of the catalysts were correlated with the characteristics of the catalysts." @default.
- W2065655726 created "2016-06-24" @default.
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- W2065655726 date "2010-03-31" @default.
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- W2065655726 title "Catalytic performance of vanadium pyrophosphate oxides (VPO) in the oxidative dehydration of glycerol" @default.
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- W2065655726 doi "https://doi.org/10.1016/j.apcata.2009.11.031" @default.
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