Zirconium–Beta zeolite as a robust catalyst for the transformation of levulinic acid to γ-valerolactone via Meerwein–Ponndorf–Verley reduction

Wang, Jie; Jaenicke, Stephan; Chuah, Gaik‐Khuan

doi:10.1039/c4ra01120a

Cited by 177 publications

(111 citation statements)

References 74 publications

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“…The S BET results are comparable to literature data for Al and/or Zr-containing beta type materials prepared via different synthetic methodologies [70,[86][87][88][92][93][94][95][96].…”

Section: Beta Type Materialssupporting

confidence: 89%

“…The powder X-ray diffraction (PXRD) patterns of (Zr) SSIE -beta and (ZrAl) SSIE -beta show reflections which are characteristic of a BEA topology (Figure 1a), similar to that reported in the literature for Zr-containing beta type materials synthesised via different methodologies [63,70,[86][87][88][89][90]. On the other hand, the PXRD patterns for (Zr) SSIE -beta and (ZrAl) SSIE -beta are similar to those reported for deAl-beta and H-beta, indicating that the crystalline structure was preserved during the modification treatments [46].…”

Section: Beta Type Materialssupporting

confidence: 61%

“…These results are consistent with the CTs, indicating fairly good catalyst stabilities. The stability of (Zr) SSIE -beta (prepared via SSIE) is comparable to that reported in the literature for a Zr-beta sample prepared via 20-day hydrothermal synthesis and tested as catalyst for LA conversion in alcohol medium (the catalyst was calcined prior to reuse) [70].…”

Section: Catalyst Stabilitymentioning

confidence: 84%

See 2 more Smart Citations

Integrated reduction and acid-catalysed conversion of furfural in alcohol medium using Zr,Al-containing ordered micro/mesoporous silicates

Antunes

Lima

Neves

et al. 2016

Applied Catalysis B: Environmental

104

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Ordered porous silicates of the type TUD-1 and zeolite beta possessing zirconium and aluminium sites were evaluated as eco-friendly heterogeneous, multifunctional catalysts for the integrated reduction-acid conversion of furfural (Fur, industrially produced from hemicellulosic components of biomass) to useful bio-products, namely, furfuryl alcohol (FA), alkyl furfuryl ethers (FEs), alkyl levulinate esters (LEs), levulinic acid (LA), angelica lactones (AnLs), and γ-valerolactone (GVL); the bio-products spectrum was obtained by GC × GC-ToFMS. Carrying out the one-pot conversion of Fur to bioproducts using a multifunctional catalyst is challenging since various reactions are involved and it is difficult to control all of these to meet high reaction efficiencies and selectivities. Aiming at designing improved multifunctional catalysts for this reaction system, the TUD-1 and zeolite beta type silicates possessing zirconium and aluminium sites in different ratios were prepared and characterised on microstructural and molecular levels. Systematic characterisation, catalytic testing using 2-butanol as dual functional solvent-H-donor, and kinetic modelling studies were performed using the Zr,Al-containing micro-and mesoporous materials. Different steps of the overall reaction of Fur were studied separately starting from intermediate products using the same materials, which helped understand the influence of the material properties on 2 reactivity of intermediates and reaction selectivity. Zr-sites of the silicate catalysts were essential for effectively initialising the overall process (reduction of Fur to FA), and for the reduction of LEs to GVL; the co-presence of Al-sites promoted acid-catalysed steps (FA to FEs, LEs, AnLs, LA). The good stability of the catalysts was verified by catalytic and characterisation studies of the spent catalysts.

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“…The S BET results are comparable to literature data for Al and/or Zr-containing beta type materials prepared via different synthetic methodologies [70,[86][87][88][92][93][94][95][96].…”

Section: Beta Type Materialssupporting

confidence: 89%

Section: Beta Type Materialssupporting

confidence: 61%

Section: Catalyst Stabilitymentioning

confidence: 84%

See 1 more Smart Citation

Integrated reduction and acid-catalysed conversion of furfural in alcohol medium using Zr,Al-containing ordered micro/mesoporous silicates

Antunes

Lima

Neves

et al. 2016

Applied Catalysis B: Environmental

104

View full text Add to dashboard Cite

show abstract

“…Copyright Year 2017, Elsevier. Accordingly, Zr-Beta zeolite was proved to be a very efficient catalyst in the CTH of LA to GVL via Meerwein-Ponndorf-Verley reduction [105].…”

Section: Levulinic Acidmentioning

confidence: 99%

Catalytic Transfer Hydrogenolysis as an Effective Tool for the Reductive Upgrading of Cellulose, Hemicellulose, Lignin, and Their Derived Molecules

et al. 2018

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Lignocellulosic biomasses have a tremendous potential to cover the future demand of bio-based chemicals and materials, breaking down our historical dependence on petroleum resources. The development of green chemical technologies, together with the appropriate eco-politics, can make a decisive contribution to a cheap and effective conversion of lignocellulosic feedstocks into sustainable and renewable chemical building blocks. In this regard, the use of an indirect H-source for reducing the oxygen content in lignocellulosic biomasses and in their derived platform molecules is receiving increasing attention. In this contribution we highlight recent advances in the transfer hydrogenolysis of cellulose, hemicellulose, lignin, and of their derived model molecules promoted by heterogeneous catalysts for the sustainable production of biofuels and biochemicals.

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“…The presence of the phenate group increased the basicity of the catalyst, which significantly favored the CTH process. Another Zr-based catalyst (Zr-Beta zeolite) was also studied for the Meerwein-Ponndorf-Verley (MPV) reduction of LA in different secondary alcohols in both batch and continuous flow reactors [29]. This catalyst also showed excellent activity with >99% GVL yield.…”

Section: Open Accessmentioning

confidence: 99%

Microwave-Assisted Conversion of Levulinic Acid to γ-Valerolactone Using Low-Loaded Supported Iron Oxide Nanoparticles on Porous Silicates

Yepez

Climent

et al. 2015

Applied Sciences

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The microwave-assisted conversion of levulinic acid (LA) has been studied using low-loaded supported Fe-based catalysts on porous silicates. A very simple, productive, and highly reproducible continuous flow method has been used for the homogeneous deposition of metal oxide nanoparticles on the silicate supports. Formic acid was used as a hydrogen donating agent for the hydrogenation of LA to effectively replace high pressure H2 mostly reported for LA conversion. Moderate LA conversion was achieved in the case of non-noble metal-based iron oxide catalysts, with a significant potential for further improvements to compete with noble metal-based catalysts.

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Zirconium–Beta zeolite as a robust catalyst for the transformation of levulinic acid to γ-valerolactone via Meerwein–Ponndorf–Verley reduction

Abstract: Zr–Beta zeolite is a robust and active catalyst for the Meerwein–Ponndorf–Verley reduction of levulinic acid to γ-valerolactone, a versatile intermediate for bio-fuels and chemicals.

Cited by 177 publications

References 74 publications

Integrated reduction and acid-catalysed conversion of furfural in alcohol medium using Zr,Al-containing ordered micro/mesoporous silicates

Integrated reduction and acid-catalysed conversion of furfural in alcohol medium using Zr,Al-containing ordered micro/mesoporous silicates

Catalytic Transfer Hydrogenolysis as an Effective Tool for the Reductive Upgrading of Cellulose, Hemicellulose, Lignin, and Their Derived Molecules

Microwave-Assisted Conversion of Levulinic Acid to γ-Valerolactone Using Low-Loaded Supported Iron Oxide Nanoparticles on Porous Silicates

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