Process for obtaining acrolein by catalytic dehydration of glycerol or glycerin
AssigneesAdisseo France S.A.S., Ecole Centrale De Lille
InventorsStephane Pariente, Virginie Belliere-Baca, Sebastien Paul, Nouria Fatah
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Abstract
A continuous process for obtaining acrolein by catalytic dehydration of glycerol or glycerin, in the presence of an acid catalyst, wherein said process comprises the concomitant regeneration of said catalyst and is carried out in a fluidized bed reactor, said reactor comprising two zones, a first zone, or lower zone, termed catalyst regeneration zone, in which a fluidization gas comprising oxygen is introduced, and a second zone, or upper zone, termed reaction zone, in which the glycerol or glycerin is introduced and converted into acrolein.
Claims11
A continuous process for the production of acrolein by catalytic dehydration of glycerol or glycerin in the presence of an acid catalyst in a fluidized bed reactor, said reactor comprising a lower region, for regeneration of the catalyst and an upper region for reaction of the glycerol or glycerin comprising the steps of introducing the glycerol or the glycerin into said upper region wherein the glycerol or glycerin is converted into acrolein by catalytic dehydration in the presence of the acid catalyst, and introducing an oxygen-comprising fluidized gas into said lower region, said oxygen-comprising fluidized gas being consumed in said lower region.
Dependencies are inferred from the claim text.