Ring-locking enables selective anhydrosugar synthesis from carbohydrate pyrolysis

Chen, Li; Zhao, Jinmo; Pradhan, Sayantan; Brinson, Bruce E.; Scuseria, Gustavo E.; Zhang, Z. Conrad; Wong, Michael S.

doi:10.1039/c6gc01600f

Cited by 32 publications

(28 citation statements)

References 28 publications

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“… Reaction pathways for formation of small‐molecule products/side products during hexose dehydration. a) Bermejo‐Deval, b) Harris, c) Chen, d) He, e) Krishna, f) Girisuta, g) Yang, h) Asghari, i) Bonn, j) Antal, k) Li, l) Cui …”

Section: Insights Into the Complex Reaction Network Of Glucose‐to‐hmfmentioning

confidence: 99%

Controlling the Reaction Networks for Efficient Conversion of Glucose into 5‐Hydroxymethylfurfural

Zhu

et al. 2020

ChemSusChem

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Biomass-derived hexose constitutes the main component of lignocellulosic biomass for producing value-added chemicals and biofuels. However, the reaction network of hexose is complicated, which makes the highly selective synthesis of one particular product challenging in biorefinery. This Review focuses on the selective production of 5-hydroxymethylfurfural (HMF) from glucose on account of its potential significance as an important platform molecule. The complex reaction network involved in glucose-to-HMF transformations is briefly summarized. Special emphasis is placed on analyzing the complexities of feedstocks, intermediates, (side-) products, catalysts, solvents, and their impacts on the reaction network. The strategies and representative examples for adjusting the reaction pathway toward HMF by developing multifunctional catalysts and promoters, taking advantage of solvent effects and process intensification, and synergizing all measures are comprehensively discussed. An outlook is provided to highlight the challenges and opportunities faced in this promising field. It is expected to provide guidance to design practical catalytic processes for advancing HMF biorefinery.

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Section: Insights Into the Complex Reaction Network Of Glucose‐to‐hmfmentioning

confidence: 99%

Controlling the Reaction Networks for Efficient Conversion of Glucose into 5‐Hydroxymethylfurfural

Zhu

et al. 2020

ChemSusChem

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“…This is because hexoses are comparatively more abundant and remains one of the primary renewable resources based natural feedstock chemicals 24 25 . Careful examination of the literature revealed that carbohydrates and their derivatives such as chitosan show excellent corrosion inhibiting properties 26 27 28 .…”

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confidence: 99%

Corrosion inhibition of mild steel in 1M HCl by D-glucose derivatives of dihydropyrido [2,3-d:6,5-d′] dipyrimidine-2, 4, 6, 8(1H,3H, 5H,7H)-tetraone

Verma

Quraishi

Kluza

et al. 2017

Sci Rep

151

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D-glucose derivatives of dihydropyrido-[2,3-d:6,5-d′]-dipyrimidine-2, 4, 6, 8(1H,3H, 5H,7H)-tetraone (GPHs) have been synthesized and investigated as corrosion inhibitors for mild steel in 1M HCl solution using gravimetric, electrochemical, surface, quantum chemical calculations and Monte Carlo simulations methods. The order of inhibition efficiencies is GPH-3 > GPH-2 > GPH-1. The results further showed that the inhibitor molecules with electron releasing (-OH, -OCH3) substituents exhibit higher efficiency than the parent molecule without any substituents. Polarization study suggests that the studied compounds are mixed-type but exhibited predominantly cathodic inhibitive effect. The adsorption of these compounds on mild steel surface obeyed the Langmuir adsorption isotherm. SEM, EDX and AFM analyses were used to confirm the inhibitive actions of the molecules on mild steel surface. Quantum chemical (QC) calculations and Monte Carlo (MC) simulations studies were undertaken to further corroborate the experimental results.

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“…Other chemicals with high mass fractions are glycolaldehyde (up to 6 wt%) and levoglucosan (up to 9 wt%) [68]. Even though it has no industrial application at this moment, levoglucosan has been identified as a potential building block for the chemical synthesis of high value-added pharmaceutical products [96][97][98][99]. Phenol is one of the most studied chemicals in LC bio-oils owing to its huge global demand, which has reached 27 kt/day in 2015 [100].…”

Section: Production Of Green Chemicalsmentioning

confidence: 99%

Supercritical Carbon Dioxide Extraction of Lignocellulosic Bio-Oils: The Potential of Fuel Upgrading and Chemical Recovery

Montesantos

Maschietti

2020

Energies

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Bio-oils derived from the thermochemical processing of lignocellulosic biomass are recognized as a promising platform for sustainable biofuels and chemicals. While significant advances have been achieved with regard to the production of bio-oils by hydrothermal liquefaction and pyrolysis, the need for improving their physicochemical properties (fuel upgrading) or for recovering valuable chemicals is currently shifting the research focus towards downstream separation and chemical upgrading. The separation of lignocellulosic bio-oils using supercritical carbon dioxide (sCO2) as a solvent is a promising environmentally benign process that can play a key role in the design of innovative processes for their valorization. In the last decade, fundamental research has provided knowledge on supercritical extraction of bio-oils. This review provides an update on the progress of the research in sCO2 separation of lignocellulosic bio-oils, together with a critical interpretation of the observed effects of the extraction conditions on the process yields and the quality of the obtained products. The review also covers high-pressure phase equilibria data reported in the literature for systems comprising sCO2 and key bio-oil components, which are fundamental for process design. The perspective of the supercritical process for the fractionation of lignocellulosic bio-oils is discussed and the knowledge gaps for future research are highlighted.

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Ring-locking enables selective anhydrosugar synthesis from carbohydrate pyrolysis

Abstract: The nonselective nature of glucose pyrolysis chemistry can be controlled by preventing the sugar ring from opening and fragmenting.

Cited by 32 publications

References 28 publications

Controlling the Reaction Networks for Efficient Conversion of Glucose into 5‐Hydroxymethylfurfural

Controlling the Reaction Networks for Efficient Conversion of Glucose into 5‐Hydroxymethylfurfural

Corrosion inhibition of mild steel in 1M HCl by D-glucose derivatives of dihydropyrido [2,3-d:6,5-d′] dipyrimidine-2, 4, 6, 8(1H,3H, 5H,7H)-tetraone

Supercritical Carbon Dioxide Extraction of Lignocellulosic Bio-Oils: The Potential of Fuel Upgrading and Chemical Recovery

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