The gas-phase oxidehydration (ODH) of 1,2-propanediol to propionic acid has been studied as an intermediate step in the multi-step transformation of bio-sourced glycerol into methylmethacrylate. The reaction involves the dehydration of 1,2-propanediol into propionaldehyde, which occurs in the presence of acid active sites, and a second step of oxidation of the aldehyde to the carboxylic acid. The two reactions were carried out using a cascade strategy and multifunctional catalysts, made of W-Nb-O, W-V-O and W-Mo-V-O hexagonal tungsten bronzes, the same systems which are also active and selective in the ODH of glycerol into acrylic acid. Despite the similarities of reactions involved, the ODH of 1,2-propanediol turned out to be less selective than glycerol ODH, with best yield to propanoic acid no higher than 13%, mainly because of the parallel reaction of oxidative cleavage, occurring on the reactant itself, which led to the formation of C1-C2 compounds.

Bandinelli C., Lambiase B., Tabanelli T., De Maron J., Dimitratos N., Basile F., et al. (2019). A study of the oxidehydration of 1,2-propanediol to propanoic acid with bifunctional catalysts. APPLIED CATALYSIS A: GENERAL, 582, 117102-117110 [10.1016/j.apcata.2019.05.036].

A study of the oxidehydration of 1,2-propanediol to propanoic acid with bifunctional catalysts

Bandinelli C.;LAMBIASE, BARBARA;Tabanelli T.;DE MARON, JACOPO;Dimitratos N.;Basile F.;Cavani F.
2019

Abstract

The gas-phase oxidehydration (ODH) of 1,2-propanediol to propionic acid has been studied as an intermediate step in the multi-step transformation of bio-sourced glycerol into methylmethacrylate. The reaction involves the dehydration of 1,2-propanediol into propionaldehyde, which occurs in the presence of acid active sites, and a second step of oxidation of the aldehyde to the carboxylic acid. The two reactions were carried out using a cascade strategy and multifunctional catalysts, made of W-Nb-O, W-V-O and W-Mo-V-O hexagonal tungsten bronzes, the same systems which are also active and selective in the ODH of glycerol into acrylic acid. Despite the similarities of reactions involved, the ODH of 1,2-propanediol turned out to be less selective than glycerol ODH, with best yield to propanoic acid no higher than 13%, mainly because of the parallel reaction of oxidative cleavage, occurring on the reactant itself, which led to the formation of C1-C2 compounds.
2019
Bandinelli C., Lambiase B., Tabanelli T., De Maron J., Dimitratos N., Basile F., et al. (2019). A study of the oxidehydration of 1,2-propanediol to propanoic acid with bifunctional catalysts. APPLIED CATALYSIS A: GENERAL, 582, 117102-117110 [10.1016/j.apcata.2019.05.036].
Bandinelli C.; Lambiase B.; Tabanelli T.; De Maron J.; Dimitratos N.; Basile F.; Concepcion P.; Nieto J.M.L.; Cavani F.
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/701065
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 8
  • ???jsp.display-item.citation.isi??? 7
social impact