Continuous flow transfer hydrogenation of biomass derived methyl levulinate over Zr containing zeolites: Insights into the role of the catalyst acidity

Cabanillas, Matilde; Franco, Ana; Lázaro, Noelia; Balu, Alina M.; Luque, Rafael; Pineda, Antonio

doi:10.1016/j.mcat.2019.110522

“…7. 124,[127][128][129][130] GVL is also suitable for use as a green solvent 131 and an intermediate of various compounds. The GVL derived chemicals include fuel additives, 119 food ingredients, 132 duction of chemicals, 133 highgrade alkene fuels 134 and nylon intermediates.…”

Section: -Methyltetrahydrofuran 2-methyltetrahydrofuran (Mthf)mentioning

confidence: 99%

“…GVL has the function and reactivity to be used as a platform compound to produce many value‐added chemical products, as shown in Fig. 7 124,127‐130 . GVL is also suitable for use as a green solvent 131 and an intermediate of various compounds.…”

Section: Transformation Of La To Valuable Chemicalsmentioning

confidence: 99%

Conversion of levulinic acid to valuable chemicals: a review

Xu

¹

,

Chen

²

,

Guo

³

et al. 2021

J of Chemical Tech & Biotech

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Levulinic acid (LA), a class of important chemical intermediates and new energy chemicals, has been considered one of the top-12 platform compounds that can be converted from biomass resources. Substantial progress on the conversion of lignocellulose biomass to LA and the further conversion of LA to high value downstream chemicals have been achieved recently. This review summarizes the preparation and separation processes of LA firstly, and then, emphatically discusses the catalytic system for LA conversion to valuable downstream products, including levulinate esters, 2-methyl tetrahydrofuran (MTHF), Gammavalerolactone (GVL), 5-aminolevulinic acid (DALA), and diphenolic acid (DPA). An outlook is provided at the end of this paper to highlight the challenges and opportunities for the comprehensive utilization of lignocellulose biomass.

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“…Many experiments have used Zr ( Chia and Dumesic 2011;Bui et al 2013;Valekar et al 2013;Hengne et al 2014;Tang et al 2014a;Gao et al 2017;Kuwahara et al 2017;Li et al 2017Li et al , 2018aSun et al 2018;Cabanillas et al 2019;Yun et al 2019;Tabanelli et al 2020), or precious metals such as Ru (Kobayashi et al 2011;Yang et al 2013;Gao et al 2017;Shende et al 2019), Pt, or Pd (Hsiao et al 2020) in CTHC, showing excellent catalytic activity. Tuning the structure can lead to comparable results.…”

Section: Catalystmentioning

confidence: 99%

An overview of the obtaining of biomass-derived gamma-valerolactone from levulinic acid or esters without H2 supply

González

¹

,

Área

²

2021

BioRes

0

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Gamma-valerolactone (GVL) is a highly reactive keto-lactone and a promising platform biomolecule, used as an additive for food and fuels, green solvent, and fuels precursor, among others. Its production from biomass usually involves hydrogenation and subsequent cyclization of levulinic acid or its esters. The process of conventional hydrogenation requires high pressures and temperatures, an external hydrogen source, and scarce noble/precious materials as catalysts. However, it could be produced under mild conditions, using bifunctional metal-acid catalysts with high metal dispersion and meso or microporosity, high surface area, temperatures lower than 200 °C, pressures ≤ 1MPa, and secondary alcohols (such as isopropanol) as hydrogen donors. The catalytic transfer hydrogenation followed by cyclization (CTHC) of levulinic acid (LA) and its esters (LE) to produce GVL using secondary alcohols as H donor is a great alternative. Variables involved in CTHC such as raw material, time, temperature, and type of catalyst, mainly transition metals and their combinations, are reviewed in this work.

show abstract

“…Many experiments have used Zr ( Chia and Dumesic 2011;Bui et al 2013;Valekar et al 2013;Hengne et al 2014;Tang et al 2014a;Gao et al 2017;Kuwahara et al 2017;Li et al 2017Li et al , 2018aSun et al 2018;Cabanillas et al 2019;Yun et al 2019;Tabanelli et al 2020), or precious metals such as Ru (Kobayashi et al 2011;Yang et al 2013;Gao et al 2017;Shende et al 2019), Pt, or Pd (Hsiao et al 2020) in CTHC, showing excellent catalytic activity. Tuning the structure can lead to comparable results.…”

Section: Catalystmentioning

confidence: 99%

An overview of the obtaining of biomass-derived gamma-valerolactone from levulinic acid or esters without H2 supply

González

¹

,

Área

²

2021

BioRes

8

0

View full text Add to dashboard Cite

Gamma-valerolactone (GVL) is a highly reactive keto-lactone and a promising platform biomolecule, used as an additive for food and fuels, green solvent, and fuels precursor, among others. Its production from biomass usually involves hydrogenation and subsequent cyclization of levulinic acid or its esters. The process of conventional hydrogenation requires high pressures and temperatures, an external hydrogen source, and scarce noble/precious materials as catalysts. However, it could be produced under mild conditions, using bifunctional metal-acid catalysts with high metal dispersion and meso or microporosity, high surface area, temperatures lower than 200 °C, pressures ≤ 1MPa, and secondary alcohols (such as isopropanol) as hydrogen donors. The catalytic transfer hydrogenation followed by cyclization (CTHC) of levulinic acid (LA) and its esters (LE) to produce GVL using secondary alcohols as H donor is a great alternative. Variables involved in CTHC such as raw material, time, temperature, and type of catalyst, mainly transition metals and their combinations, are reviewed in this work.

show abstract

Continuous flow transfer hydrogenation of biomass derived methyl levulinate over Zr containing zeolites: Insights into the role of the catalyst acidity

Cited by 20 publications

References 31 publications

Conversion of levulinic acid to valuable chemicals: a review

Conversion of levulinic acid to valuable chemicals: a review

An overview of the obtaining of biomass-derived gamma-valerolactone from levulinic acid or esters without H2 supply

An overview of the obtaining of biomass-derived gamma-valerolactone from levulinic acid or esters without H2 supply

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