The catalytic conversion of crude glycerol to biopropene was investigated. A bifunctional Ru-ionic liquid system showed a high tolerance for common crude glycerol impurities like water, salts and methanol. After optimizing both dehydration and olefin selectivity, a 82% biopropene yield (94% selectivity) was obtained directly from industrial waste glycerol.
K. Janssens, M. Stalpaert, M. Henrion and D. E. De Vos, Chem. Commun., 2021, 57, 6324 DOI: 10.1039/D1CC01779A
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