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

doi:10.1002/cctc.202000429

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

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.

Original language	English
Pages (from-to)	4090-4104
Number of pages	15
Journal	ChemCatChem
Volume	12
Issue number	16
Early online date	20 May 2020
DOIs	https://doi.org/10.1002/cctc.202000429
Publication status	Published - 20 Aug 2020
MoE publication type	A1 Journal article-refereed

Keywords

hydrodeoxygenation
platinum
propylbenzene
propylphenol
reducible support

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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cctc.202000429Final published version, 3.57 MBLicence: CC BY-NC-ND

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@article{33d2a11962ba496e81568e71b601ea27,

title = "Liquid-phase Hydrodeoxygenation of 4-Propylphenol to Propylbenzene : Reducible Supports for Pt Catalysts",

abstract = "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.",

keywords = "hydrodeoxygenation, platinum, propylbenzene, propylphenol, reducible support",

author = "Eveliina M{\"a}kel{\"a} and {Gonz{\'a}lez Escobedo}, {Jos{\'e} Luis} and Jouni Neuvonen and Jouko Lahtinen and Marina Lindblad and Ulla Lassi and Reetta Karinen and Puurunen, {Riikka L.}",

year = "2020",

month = aug,

day = "20",

doi = "10.1002/cctc.202000429",

language = "English",

volume = "12",

pages = "4090--4104",

journal = "ChemCatChem",

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publisher = "Wiley-VCH Verlag",

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}

TY - JOUR

T1 - Liquid-phase Hydrodeoxygenation of 4-Propylphenol to Propylbenzene : Reducible Supports for Pt Catalysts

AU - Mäkelä, Eveliina

AU - González Escobedo, José Luis

AU - Neuvonen, Jouni

AU - Lahtinen, Jouko

AU - Lindblad, Marina

AU - Lassi, Ulla

AU - Karinen, Reetta

AU - Puurunen, Riikka L.

PY - 2020/8/20

Y1 - 2020/8/20

N2 - 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.

AB - 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.

KW - hydrodeoxygenation

KW - platinum

KW - propylbenzene

KW - propylphenol

KW - reducible support

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U2 - 10.1002/cctc.202000429

DO - 10.1002/cctc.202000429

M3 - Article

AN - SCOPUS:85087214887

SN - 1867-3880

VL - 12

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JO - ChemCatChem

JF - ChemCatChem

IS - 16

ER -

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

Abstract

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

Abstract

Keywords

UN SDGs

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Fingerprint

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Bioeconomy Research Infrastructure

OtaNano

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