title: Towards the sustainable production of acrolein by glycerol dehydration.
abstract: The massive increase in biodiesel production by transesterification of vegatable oils goes hand-in-hand with the availability of a large volume of glycerol, which must be valorized. Glycerol dehydration to acrolein over acid catalysts is one of the most promising ways of valorization, because this compound is an important chemical intermediate used in, for example, the DL-methionine synthesis. In this Minireview, we give a detailed critical view of the state-of-the-art of this dehydration reaction. The processes developed in both the liquid and the gas phases are detailed and the best catalytic results obtained so far are reported as a benchmark for future developments. The advances on the understanding of the reaction mechanism are also discussed and we further focus particularly on the main obstacles for an immediate industrial application of this technology, namely catalyst coking and crude glycerol direct-use issues.
authors.affiliation: Université des Sciences et Technologies de Lille, UMR, CNRS, Villeneuve d'Ascq, France.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Katryniok
authors.forename: Sébastien
authors.initials: S
authors.lastname: Paul
authors.forename: Mickaël
authors.initials: M
authors.lastname: Capron
authors.forename: Franck
authors.initials: F
authors.lastname: Dumeignil
mesh_terms: D000171:Acrolein / Q000138:chemical synthesis*; D002384:Catalysis; D005740:Gases / Q000737:chemistry; D005990:Glycerol / Q000737:chemistry*; D055772:Green Chemistry Technology / Q000191:economics / Q000379:methods*; D014867:Water / Q000737:chemistry
chemical_list: D005740:Gases; D014867:Water; D000171:Acrolein; D005990:Glycerol