Synthesis of lignin-carbohydrate complex-based catalyst from Eragrostis tef straw and its catalytic performance in xylose dehydration to furfural

Dulie, Negesso Wakushie; Woldeyes, Belay; Demsash, Hundessa Dessalegn

doi:10.1016/j.ijbiomac.2020.12.213

Cited by 26 publications

(10 citation statements)

References 37 publications

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“…The substitution of lignin in epoxy resins was also explored from various fractionated products of lignin including vanillyl alcohol, vanillin, 4‐(1‐propenyl) guaiacol, guaiacol, and 4‐propylguaiacol. These monomers can be produced directly from the depolymerization of biomass or polymerization with amines or anhydrides 41,87 . These epoxy resins show high thermal, adhesive and mechanical properties and possess high performance in terms of chemical resistance.…”

Section: Applications Of Incorporation Of Lignin In Polymeric Materialsmentioning

confidence: 99%

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Perspectives of biomass based lignin to value added chemicals in biorefineries: challenges, extraction strategies and applications

Tyagi

Sarma

2022

Biofuels Bioprod Bioref

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Lignin transformation has significant potential to produce high-quality platform chemicals and value-added products. Extraction techniques and techniques for processing lignin to lignin-derived dimers and trimers and other phenolic compounds have recently attracted the attention of the scientific community. Exploring the potential of the most abundant sources of bio-aromatics enhances the profitability and efficiency of the biorefinery process and reduces dependence on conventional resources. Successful lignin transformation entails the development of steps to overcome the following challenges: (i) the pretreatment of biomass followed by the separation of lignin to reduce crystallinity, and the reduction of the complex chemistry of biomass to produce lignin with a high degree of purity, and (ii) advances in chemical analysis for precise in situ lignin characterization during depolymerization. To bring about technological advances in the bio-based economy, the utilization of sustainable resources for the production of value-added products is essential. The valorization of lignin via cost-effective and carbon-neutral techniques has provided remarkable opportunities, including opportunities for commercialization. The life cycle analysis of lignin valorization to manufacture value-added products from surplus biomass is central if maximum use is to be made of agroresidues for such purposes.

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Section: Applications Of Incorporation Of Lignin In Polymeric Materialsmentioning

confidence: 99%

“…These monomers can be produced directly from the depolymerization of biomass or polymerization with amines or anhydrides. 41,87 These epoxy resins show high thermal, adhesive and mechanical properties and possess high performance in terms of chemical resistance.…”

Section: Table 4 (Continued)mentioning

confidence: 99%

Perspectives of biomass based lignin to value added chemicals in biorefineries: challenges, extraction strategies and applications

Tyagi

Sarma

2022

Biofuels Bioprod Bioref

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“…With the exploitation and consumption of fossil energy resources and environmental pollution problems, researchers are urged to find alternative fuels for fossil energy [1,2] . Biomass, as a renewable resource with a wide range of sources, contains abundant lignocellulose for its conversion and utilization.…”

Section: Introductionmentioning

confidence: 99%

“…With the exploitation and consumption of fossil energy resources and environmental pollution problems, researchers are urged to find alternative fuels for fossil energy. [1,2] Biomass, as a renewable resource with a wide range of sources, contains abundant lignocellulose for its conversion and utilization. Biomass materials extracted from agricultural and forestry wastes can be converted into high value-added fuels and chemicals through bio-based intermediates.…”

Section: Introductionmentioning

confidence: 99%

Solid Acid Catalyst Derived from Cotton for Conversion of Xylose and Corn Cob to Furfural

et al. 2022

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Carbon‐based solid acid catalysts (CS−SO3H) were prepared by one‐pot carbonization‐sulfonation method with concentrated sulfuric acid using cotton as raw material, which was used to transformation of xylose and corn cob to furfural. The catalyst preparation conditions were optimized to be that the cotton mass/sulfuric acid volume ratio is 1 : 20 (g/mL), and the reaction is carried out at 160 °C for 10 h. The morphology, functional groups and surface chemical state were investigated. The yield of furfural can reach 87.3 % from xylose under the optimal reaction condition of 0.1 g xylose, 0.05 g catalyst, 180 °C for 90 min in 5.0 mL γ‐valerolactone‐water solvent. The yield of furfural can reach 63.2 % by the direct one‐pot conversion of corn cob over the CS−SO3H under the optimal reaction condition of 0.1 g corn cob, 0.1 g catalyst, 190 °C for 90 min in 5.0 mL γ‐valerolactone‐water solvent. The catalytic activity gradually declined when it was cycled for four times. The reason was determined to be the partial shedding of the sulfonic acid groups grafted on the catalyst during the reaction and insoluble humus accumulated on the catalyst surface. After regeneration, the catalytic activity can be restored.

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“…As a kind of green renewable biomass material, lignin mainly comes from paper pulp and is a good substitute for petroleum‐based plastics 2 . In recent years, much work has focused on the high added value of lignin in the field of nano particles 3 , functional film 4 and catalyst 5 . However, the composition of industrial lignin is complex and the structure is uncertain, so it is difficult to directly use lignin to modify polyolefin 6 .…”

Section: Introductionmentioning

confidence: 99%

Preparation of polypropylene with high melt strength by wet reaction blending of lignin

Tian

et al. 2021

J of Applied Polymer Sci

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In this paper, the melt strength of polypropylene is shown to be significantly improved by lignin‐cooperative construction of heterophase network structure and the evolution mechanism of lignin on the topology of polypropylene is investigated. Electron paramagnetic resonance (EPR) analysis shows that the free radicals generated by polypropylene irradiation can remain active for 2 weeks; rheological studies show that lignin promotes the formation of heterogeneous network structures in polypropylene, and its melt is characterized by long‐chain branching. Phase angle‐complex modulus, complex viscosity‐complex modulus, Han's, and Cole–Cole curves are used to analyze the liquid–solid transformation, and the results indicate that the enhanced interfacial action is due to the formation of the heterogeneous network structures. The mechanical properties show that the impact strength is increased by 1.8 times due to the synergistic effect of lignin and acrylamide. SEM shows the formation of a fibrous network structure around the lignin, which undergoes interfacial yielding, improving the interfacial interaction between the components.

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Synthesis of lignin-carbohydrate complex-based catalyst from Eragrostis tef straw and its catalytic performance in xylose dehydration to furfural

Cited by 26 publications

References 37 publications

Perspectives of biomass based lignin to value added chemicals in biorefineries: challenges, extraction strategies and applications

Perspectives of biomass based lignin to value added chemicals in biorefineries: challenges, extraction strategies and applications

Solid Acid Catalyst Derived from Cotton for Conversion of Xylose and Corn Cob to Furfural

Preparation of polypropylene with high melt strength by wet reaction blending of lignin

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