Selective production of furfural from the dehydration of xylose using Zn doped CuO catalyst

Mishra, Rahul Kumar; Kumar, Vijay Bhooshan; Victor, Amudavalli; Pulidindi, Indra Neel; Gedanken, Aharon

doi:10.1016/j.ultsonch.2019.03.015

Cited by 36 publications

(16 citation statements)

References 37 publications

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“…Zn doped CuO nanoparticles (Cu 0.89 Zn 0.11 O) synthesized by Gedanken group (Mishra et al, 2019) exhibit good activity and selectivity for the conversion of xylose to furfural, which enhances its catalytic activity and enables it to completely convert xylose and the 86% yield of furfural at 150 • C within 12 h. The incorporation of Zn into CuO lattice resulted in a highly defective structure of the Zn doped CuO NPs, which provide more active sites for xylose to dehydrate. The Zn doped CuO NPs catalyst on the mechanism of dehydration of xylose to furfural is provided in Figure 2.…”

Section: Nanosized Metal Oxidesmentioning

confidence: 99%

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Recent Advances in Aqueous-Phase Catalytic Conversions of Biomass Platform Chemicals Over Heterogeneous Catalysts

Zhang

Wang

et al. 2020

Front. Chem.

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A series of biomass-derived platform molecules, such as glucose, furans, levulinic acid, 5-hydroxymethylfurfural, and acetic acids, can be converted into a variety of value-added chemicals through catalytic transformations that include dehydration, hydrogenation, oxidation, isomerization, reforming, ketonization, and aldol condensation over heterogeneous catalysts. Aqueous-phase processing is an important issue and a great challenge for the heterogeneous catalytic conversion of biobased chemicals due to the high water content of the biomass and the formation of water during the transformation process. In this paper, heterogeneous catalysts that are applicable to the aqueous-phase conversion process of biomass platform chemicals, including noble metal catalysts, non-noble metal catalysts, bimetallic catalysts, metal oxides, and zeolite, are introduced, and a comprehensive evaluation of the catalyst performance, including the catalytic activity, stability, and regeneration performance of different kinds of heterogeneous catalysts, are made. Besides, we highlighted the effect of water on heterogeneous catalysts and the deactivation mechanism in the aqueous phase. Beyond this, several catalytic mechanisms of aqueous-phase conversion over heterogeneous catalysts are summarized in order to help understand the reaction process on the surface of catalysts in the aqueous phase, so as to design targeted catalysts. At last, a prospect of biobased chemicals and fuels is forecasted.

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Section: Nanosized Metal Oxidesmentioning

confidence: 99%

“…Possible reaction mechanism for the dehydration of xylose to furfural on Zn doped CuO catalyst. Reprinted fromMishra et al (2019), with permission from Elsevier.…”

mentioning

confidence: 99%

Recent Advances in Aqueous-Phase Catalytic Conversions of Biomass Platform Chemicals Over Heterogeneous Catalysts

Zhang

Wang

et al. 2020

Front. Chem.

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“…Some crucial properties of heterogeneous catalysts are the presence of surface acidity, adjusted textural properties and greater hydrothermal stability to produce high selectivity to the desired product. Regarding reaction conditions, the use of solvents, such as water, or mixtures of small amounts of solvents, such as toluene and dimethylsulfoxide (DMSO), and low reaction temperatures (e.g., 100–200 °C), have advantages from an environmental point of view [ 19 ]. The catalysts most used in xylose dehydration reactions are zeolites, oxides doped with metals, and nanoparticle mesoporous materials [ 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

“…Regarding reaction conditions, the use of solvents, such as water, or mixtures of small amounts of solvents, such as toluene and dimethylsulfoxide (DMSO), and low reaction temperatures (e.g., 100–200 °C), have advantages from an environmental point of view [ 19 ]. The catalysts most used in xylose dehydration reactions are zeolites, oxides doped with metals, and nanoparticle mesoporous materials [ 18 , 19 , 20 ]. The theoretical yield of furfural production from pentosans is 73%, and the current industrial processes operate with ~33% of theoretical yields [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

“…The catalysts most used in xylose dehydration reactions are zeolites, oxides doped with metals, and nanoparticle mesoporous materials [ 18 , 19 , 20 ]. The theoretical yield of furfural production from pentosans is 73%, and the current industrial processes operate with ~33% of theoretical yields [ 19 ]. Mishra et al [ 19 ] obtained 86 mol% of yield for furfural in xylose dehydration at 150 °C for 12 h, using CuO doped with Zn and water as a reaction medium.…”

Section: Introductionmentioning

confidence: 99%

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Niobium on BEA Dealuminated Zeolite for High Selectivity Dehydration Reactions of Ethanol and Xylose into Diethyl Ether and Furfural

et al. 2020

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In this work, we investigated the role of solid-state dealumination by (NH4)2SiF6 (25% Al removal and 13% Si insertion), the impregnation of niobium (10, 18, and 25 wt. %) on dealuminated *BEA (DB) zeolite and their catalytic properties in ethanol and xylose transformations. Among all the studied catalysts, 18%Nb-DB showed increased mesoporosity and external areas. A leveling effect in the number and strength of the proposed two sites (Brønsted and Lewis) present in the catalyst (n1 = 0.24 mmol g−1, −ΔH1 = 49 kJ mol−1, and n2 = 0.20 mmol g−1, –ΔH2 = 42 kJ mol−1) in the catalyst 18%Nb-DB, might be responsible for its good activity. This catalyst presented the highest selectivity for diethyl ether, DEE (97%) with 61% conversion after 50 ethanol pulses at 230 °C (turnover number, TON DEE = 1.15). These features allowed catalytically fruitful bonding of the ethanol molecules to the neighboring sites on the channels, facilitating bimolecular ether formation through a possible SN2 mechanism. The same catalyst was active and selective for transformation of xylose at 180 °C, showing 64% conversion and 51% selectivity for furfural (TON Furfural = 24.7) using water as a green solvent.

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Nanocatalysis for Renewable Aromatics

Dutta

Bhat

Anchan

2022

Heterogeneous Nanocatalysis for Energy and Environmental Sustainability

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Selective production of furfural from the dehydration of xylose using Zn doped CuO catalyst

Cited by 36 publications

References 37 publications

Recent Advances in Aqueous-Phase Catalytic Conversions of Biomass Platform Chemicals Over Heterogeneous Catalysts

Recent Advances in Aqueous-Phase Catalytic Conversions of Biomass Platform Chemicals Over Heterogeneous Catalysts

Niobium on BEA Dealuminated Zeolite for High Selectivity Dehydration Reactions of Ethanol and Xylose into Diethyl Ether and Furfural

Nanocatalysis for Renewable Aromatics

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