Chemsuschem Chemistry And Sustainability, Energy & Materials 2015-01-01

Multielement crystalline and pseudocrystalline oxides as efficient catalysts for the direct transformation of glycerol into acrylic acid.

Alessandro Chieregato, M Dolores Soriano, Ester García-González, Giuseppe Puglia, Francesco Basile, Patricia Concepción, Claudia Bandinelli, José M López Nieto, Fabrizio Cavani

Index: ChemSusChem 8(2) , 398-406, (2015)

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Abstract

Glycerol surplus from biodiesel synthesis still represents a major problem in the biofuel production chain. Meanwhile, those in the acrylic acid market are looking for new processes that are able to offer viable alternatives to propylene-based production. Therefore, acrylic acid synthesis from glycerol could be an effective solution to both issues. Among the viable routes, one-pot synthesis theoretically represents the most efficient process, but it is also highly challenging from the catalyst design standpoint. A new class of complex W--Mo--V mixed-oxide catalysts, which are strongly related to the hexagonal tungsten bronze structure, able to directly convert glycerol into acrylic acid with yields of up to 51 % are reported.© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.