Selective, one-pot catalytic conversion of levulinic acid to pentanoic acid over Ru/H-ZSM5

Wenhao Luo; Pieter C A Bruijnincx; Bert M. Weckhuysen

doi:10.1016/j.jcat.2014.09.014

Selective, one-pot catalytic conversion of levulinic acid to pentanoic acid over Ru/H-ZSM5

Wenhao Luo, Pieter C A Bruijnincx^*, Bert M. Weckhuysen

^*Corresponding author for this work

Sub Inorganic Chemistry and Catalysis

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

Abstract

The direct conversion of levulinic acid (LA) to pentanoic acid (PA) has been studied with six 1 wt% Ru/H-ZSM5 catalysts at 40 bar H₂ and 473 K in dioxane. The influence of ZSM5 cation form, Si/Al ratio and ruthenium precursor on metal dispersion and acidity has been assessed. A highly active bifunctional 1 wt% Ru/H-ZSM5 catalyst was developed to give a PA yield of 91.3% after 10 h. The PA productivity of 1.157 mol_PA g_Ru ^-1 h^-1 is the highest reported to date. The simple preparation method allows for a significant fraction of ruthenium to be located inside the zeolite pores, providing the desired proximity between the hydrogenation function and the strong acid sites, which is key to the conversion of LA into PA. Coke buildup during reaction causes some deactivation, but activity can be almost fully restored after catalyst regeneration by simple coke burn-off.

Original language	English
Pages (from-to)	33-41
Number of pages	9
Journal	Journal of Catalysis
Volume	320
DOIs	https://doi.org/10.1016/j.jcat.2014.09.014
Publication status	Published - 1 Jan 2014

Keywords

Acidity
Catalyst synthesis
Levulinic acid
Pentanoic acid
Ruthenium
ZSM5

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title = "Selective, one-pot catalytic conversion of levulinic acid to pentanoic acid over Ru/H-ZSM5",

abstract = "The direct conversion of levulinic acid (LA) to pentanoic acid (PA) has been studied with six 1 wt% Ru/H-ZSM5 catalysts at 40 bar H2 and 473 K in dioxane. The influence of ZSM5 cation form, Si/Al ratio and ruthenium precursor on metal dispersion and acidity has been assessed. A highly active bifunctional 1 wt% Ru/H-ZSM5 catalyst was developed to give a PA yield of 91.3% after 10 h. The PA productivity of 1.157 molPA gRu -1 h-1 is the highest reported to date. The simple preparation method allows for a significant fraction of ruthenium to be located inside the zeolite pores, providing the desired proximity between the hydrogenation function and the strong acid sites, which is key to the conversion of LA into PA. Coke buildup during reaction causes some deactivation, but activity can be almost fully restored after catalyst regeneration by simple coke burn-off.",

keywords = "Acidity, Catalyst synthesis, Levulinic acid, Pentanoic acid, Ruthenium, ZSM5",

author = "Wenhao Luo and Bruijnincx, {Pieter C A} and Weckhuysen, {Bert M.}",

year = "2014",

month = jan,

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doi = "10.1016/j.jcat.2014.09.014",

language = "English",

volume = "320",

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journal = "Journal of Catalysis",

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T1 - Selective, one-pot catalytic conversion of levulinic acid to pentanoic acid over Ru/H-ZSM5

AU - Luo, Wenhao

AU - Bruijnincx, Pieter C A

AU - Weckhuysen, Bert M.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - The direct conversion of levulinic acid (LA) to pentanoic acid (PA) has been studied with six 1 wt% Ru/H-ZSM5 catalysts at 40 bar H2 and 473 K in dioxane. The influence of ZSM5 cation form, Si/Al ratio and ruthenium precursor on metal dispersion and acidity has been assessed. A highly active bifunctional 1 wt% Ru/H-ZSM5 catalyst was developed to give a PA yield of 91.3% after 10 h. The PA productivity of 1.157 molPA gRu -1 h-1 is the highest reported to date. The simple preparation method allows for a significant fraction of ruthenium to be located inside the zeolite pores, providing the desired proximity between the hydrogenation function and the strong acid sites, which is key to the conversion of LA into PA. Coke buildup during reaction causes some deactivation, but activity can be almost fully restored after catalyst regeneration by simple coke burn-off.

AB - The direct conversion of levulinic acid (LA) to pentanoic acid (PA) has been studied with six 1 wt% Ru/H-ZSM5 catalysts at 40 bar H2 and 473 K in dioxane. The influence of ZSM5 cation form, Si/Al ratio and ruthenium precursor on metal dispersion and acidity has been assessed. A highly active bifunctional 1 wt% Ru/H-ZSM5 catalyst was developed to give a PA yield of 91.3% after 10 h. The PA productivity of 1.157 molPA gRu -1 h-1 is the highest reported to date. The simple preparation method allows for a significant fraction of ruthenium to be located inside the zeolite pores, providing the desired proximity between the hydrogenation function and the strong acid sites, which is key to the conversion of LA into PA. Coke buildup during reaction causes some deactivation, but activity can be almost fully restored after catalyst regeneration by simple coke burn-off.

KW - Acidity

KW - Catalyst synthesis

KW - Levulinic acid

KW - Pentanoic acid

KW - Ruthenium

KW - ZSM5

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U2 - 10.1016/j.jcat.2014.09.014

DO - 10.1016/j.jcat.2014.09.014

M3 - Article

AN - SCOPUS:84909967125

SN - 0021-9517

VL - 320

SP - 33

EP - 41

JO - Journal of Catalysis

JF - Journal of Catalysis

ER -

Selective, one-pot catalytic conversion of levulinic acid to pentanoic acid over Ru/H-ZSM5

Abstract

Keywords

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