Liquid-phase Hydrodeoxygenation of 4-Propylphenol to Propylbenzene : Reducible Supports for Pt Catalysts

Eveliina Mäkelä*, José Luis González Escobedo, Jouni Neuvonen, Jouko Lahtinen, Marina Lindblad, Ulla Lassi, Reetta Karinen, Riikka L. Puurunen

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

8 Sitaatiot (Scopus)
167 Lataukset (Pure)

Abstrakti

Pyrolysis and liquefaction biocrudes obtained from lignocellulose are rich in phenolic compounds that can be converted to renewable aromatics. In this study, Pt catalysts on reducible metal oxide supports (Nb2O5, TiO2), along with irreducible ZrO2 as a reference, were investigated in the liquid-phase hydrodeoxygenation (HDO) of 4-propylphenol (350 °C, 20 bar H2, organic solvent). The most active catalyst was Pt/Nb2O5, which led to the molar propylbenzene selectivity of 77 %, and a yield of 75 % (98 % conversion). Reducible metal oxide supports provided an increased activity and selectivity to the aromatic product compared to ZrO2, and the obtained results are among the best reported in liquid-phase. The reusability of the spent catalysts was also studied. The spent Pt/Nb2O5 catalyst provided the lowest conversion, while the product distribution of the spent Pt/ZrO2 catalyst changed towards oxygenates. The results highlight the potential of pyrolysis or liquefaction biocrudes as a source of aromatic chemicals.

AlkuperäiskieliEnglanti
Sivut4090-4104
Sivumäärä15
JulkaisuChemCatChem
Vuosikerta12
Numero16
Varhainen verkossa julkaisun päivämäärä20 toukok. 2020
DOI - pysyväislinkit
TilaJulkaistu - 20 elok. 2020
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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