Facile and Low-Cost Preparation of Nb/Al Oxide Catalyst with High Performance for the Conversion of Kiwifruit Waste Residue to Levulinic Acid

Wang, Rui; Xie, Xiaolin; Liu, Yanxiu; Liu, Zhigang; Xie, Guangyuan; Ji, Ning; Ma, Lun; Tang, Mingquan

doi:10.3390/catal5041636

Cited by 14 publications

(8 citation statements)

References 29 publications

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“…The catalyst was reusable five times keeping almost the same activity. 356 Yang et al observed the conversion of glucose into LA utilizing Nb-containing catalysts. The catalysts were prepared by a hydrothermal synthesis method.…”

Section: Chemical Reviewsmentioning

confidence: 99%

Catalytic Conversion of Carbohydrates to Initial Platform Chemicals: Chemistry and Sustainability

2017

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The replacement of fossil resources that currently provide more than 90% of our energy needs and feedstocks of the chemical industry in combination with reduced emission of carbon dioxide is one of the most pressing challenges of mankind. Biomass as a globally available resource has been proposed as an alternative feedstock for production of basic building blocks, which could partially or even fully replace the currently utilized fossil-based ones in well-established chemical processes. The destruction of lignocellulosic feed followed by oxygen removal from its cellulose and hemicellulose content by catalytic processes results in the formation of initial platform chemicals (IPCs). However, their sustainable production strongly depends on the availability of resources, their efficient or even industrially viable conversion processes, and replenishment time of feedstocks. Herein, we overview recent advances and developments in catalytic transformations of the carbohydrate content of lignocellulosic biomass to IPCs (i.e., ethanol, 3-hydroxypropionic acid, isoprene, succinic and levulinic acids, furfural, and 5-hydroxymethylfurfural). The mechanistic aspects, development of new catalysts, different efficiency indicators (yield and selectivity), and conversion conditions of their production are presented and compared. The potential biochemical production routes utilizing recently engineered microorganisms are reviewed, as well. The sustainability metrics that could be applied to the chemical industry (individual set of sustainability indicators, composite indices methods, material and energy flow analysis-based metrics, and ethanol equivalents) are also overviewed as well as an outlook is provided to highlight challenges and opportunities associated with this huge research area.

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Section: Chemical Reviewsmentioning

confidence: 99%

Catalytic Conversion of Carbohydrates to Initial Platform Chemicals: Chemistry and Sustainability

2017

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“…By this way, not only the liquid phase but also the solid component, including the catalytic species, are efficiently and quickly heated, but also in this case the positive role of MW is due to simple thermal effects. Among the acid catalysts listed above, it is considerable to highlight the use of the heterogeneous super-acid catalyst named S 2 Table 5) [127]. Today, the kiwifruit industry is booming worldwide.…”

Section: Heterogeneous Catalysts In Watermentioning

confidence: 99%

New Frontiers in the Catalytic Synthesis of Levulinic Acid: From Sugars to Raw and Waste Biomass as Starting Feedstock

et al. 2016

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Levulinic acid (LA) is one of the top bio-based platform molecules that can be converted into many valuable chemicals. It can be produced by acid catalysis from renewable resources, such as sugars, lignocellulosic biomass and waste materials, attractive candidates due to their abundance and environmentally benign nature. The LA transition from niche product to mass-produced chemical, however, requires its production from sustainable biomass feedstocks at low costs, adopting environment-friendly techniques. This review is an up-to-date discussion of the literature on the several catalytic systems that have been developed to produce LA from the different substrates. Special attention has been paid to the recent advancements on starting materials, moving from simple sugars to raw and waste biomasses. This aspect is of paramount importance from a sustainability point of view, transforming wastes needing to be disposed into starting materials for value-added products. This review also discusses the strategies to exploit the solid residues always obtained in the LA production processes, in order to attain a circular economy approach.

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“…reported an LA yield of 17 mol% from vegetable waste for only 5 min at 150 °C by Amberlyst‐36. Wang et al 64 . produced a 14.7 wt% LA yield from kiwifruit waste in 15 min at 190 °C by using 20% Nb/Al oxide.…”

Section: Preparation and Separation Of Lamentioning

confidence: 99%

“…The production of LA from biomass and monosaccharide Chen et al63 reported an LA yield of 17 mol% from vegetable waste for only 5 min at 150°C by Amberlyst-36. Wang et al64 produced a 14.7 wt% LA yield from kiwifruit waste in 15 min at 190°C by using 20% Nb/Al oxide. The development of LA production from lignocellulose materials was promoted by the development of these new catalytic systems and technological conditions.…”

mentioning

confidence: 99%

Conversion of levulinic acid to valuable chemicals: a review

Chen

Guo

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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Facile and Low-Cost Preparation of Nb/Al Oxide Catalyst with High Performance for the Conversion of Kiwifruit Waste Residue to Levulinic Acid

Cited by 14 publications

References 29 publications

Catalytic Conversion of Carbohydrates to Initial Platform Chemicals: Chemistry and Sustainability

Catalytic Conversion of Carbohydrates to Initial Platform Chemicals: Chemistry and Sustainability

New Frontiers in the Catalytic Synthesis of Levulinic Acid: From Sugars to Raw and Waste Biomass as Starting Feedstock

Conversion of levulinic acid to valuable chemicals: a review

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