Articles with "alkali lignin" as a keyword



Low-temperature alkali lignin depolymerization to functional chemicals

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Published in 2021 at "Biomass Conversion and Biorefinery"

DOI: 10.1007/s13399-021-01478-x

Abstract: Lignin—an underutilized component of lignocellulosic biomass and an aromatic polymer has an immense potential for the production of valuable chemicals. The ultimate goal of our research is to understand the lignin depolymerization at a lower temperature… read more here.

Keywords: lignin; depolymerization; lignin depolymerization; alkali lignin ... See more keywords
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Modifying sulfomethylated alkali lignin by horseradish peroxidase to improve the dispersibility and conductivity of polyaniline

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Published in 2017 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2017.07.102

Abstract: Abstract Pine and wheat straw alkali lignin (PAL and WAL) were sulfomethylated to improve water solubility, polymerized with horseradish peroxidase (HRP) to improve the molecular weight ( M w ) and applied to dope and… read more here.

Keywords: conductivity; alkali lignin; horseradish peroxidase; polyaniline ... See more keywords
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Depolymerization of lignocellulose of oil palm empty fruit bunch by thermophilic microorganisms from tropical climate.

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Published in 2019 at "Bioresource technology"

DOI: 10.1016/j.biortech.2019.01.122

Abstract: Previous studies on screening of lignin-degrading bacteria mainly focused on the ligninolytic ability of the isolated bacteria for the utilization of lignin monomers. In this study, we focused on the depolymerization of alkali lignin to… read more here.

Keywords: depolymerization; palm empty; empty fruit; oil palm ... See more keywords
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Alkali lignin and sodium lignosulfonate additives promote the formation of humic substances during paper mill sludge composting.

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Published in 2020 at "Bioresource technology"

DOI: 10.1016/j.biortech.2020.124361

Abstract: Alkali lignin (AL) and sodium lignosulfonate (SLS) are by-products of the papermaking industry and could influence composting processes due to their rich aromatic structures. In this study, the roles of AL and SLS additives in… read more here.

Keywords: sodium lignosulfonate; substances paper; formation humic; humic substances ... See more keywords
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Synthesis-property-performance relationships of multifunctional bacterial cellulose composites fermented in situ alkali lignin medium.

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Published in 2021 at "Carbohydrate polymers"

DOI: 10.1016/j.carbpol.2020.117114

Abstract: This work demonstrates a unique approach of utilizing alkali lignin (AL), as smart additive to in situ BC fermentation in which it concurrently acts as promoter to microbial growth as well as reinforcing filler for… read more here.

Keywords: property performance; performance; synthesis property; alkali lignin ... See more keywords
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Insights into depolymerization pathways and mechanism of alkali lignin over a Ni1.2–ZrO2/WO3/γ-Al2O3 catalyst

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Published in 2021 at "Chinese Journal of Chemical Engineering"

DOI: 10.1016/j.cjche.2021.07.018

Abstract: Abstract This study performed catalytic depolymerization of alkali lignin over Ni-based catalysts. Effects of different promoters (Zr and W), Ni loadings, reaction temperatures, and the addition of formic acid and catalyst on lignin conversion and… read more here.

Keywords: depolymerization; insights depolymerization; lignin; lignin depolymerization ... See more keywords
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Study on the chemical modification of alkali lignin towards for cellulase adsorbent application.

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Published in 2020 at "International journal of biological macromolecules"

DOI: 10.1016/j.ijbiomac.2020.01.229

Abstract: The research of cost-efficient lignin-based adsorbents is a practical strategy for the recovery of cellulase. In this study, alkali lignin was modified to increase the phenolic hydroxyl (Ph-OH) content for cellulase adsorption applications. After phenolation,… read more here.

Keywords: lignin based; lignin; based adsorbents; cellulase ... See more keywords

Alkali lignin depolymerization under eco-friendly and cost-effective NaOH/urea aqueous solution for fast curing bio-based phenolic resin

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Published in 2018 at "Industrial Crops and Products"

DOI: 10.1016/j.indcrop.2018.04.027

Abstract: Abstract It is still a challenge to use lignin without any pretreatment due to its high molecular weight, strong steric hindrance, and low reactivity. To prepare value-added low molecular weight aromatic compounds for preparation of… read more here.

Keywords: naoh urea; urea aqueous; depolymerization; lignin ... See more keywords
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Avermectin loaded nanosphere prepared from acylated alkali lignin showed anti-photolysis property and controlled release performance

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Published in 2019 at "Industrial Crops and Products"

DOI: 10.1016/j.indcrop.2019.04.037

Abstract: Abstract Acetylated lignin (ACAL) and benzoylated lignin (BZAL) were obtained from the chemical modification of alkali lignin with acetyl chloride and benzoyl chloride, respectively. The results showed that the introduction of alkyl chain can increase… read more here.

Keywords: lignin; alkali lignin; anti photolysis; controlled release ... See more keywords
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Separation and recovery of alkali lignin and NaOH based on size exclusion methodology

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Published in 2021 at "Separation and Purification Technology"

DOI: 10.1016/j.seppur.2020.117852

Abstract: Abstract Alkali lignin and NaOH are two main components in the black liquors from alkaline pulp. Adding sulfuric acid directly to precipitate lignin results in high consumption of acid as well as production of waste… read more here.

Keywords: methodology; alkali lignin; lignin naoh; separation ... See more keywords
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Fenton pretreatment of lignin to remove methoxy in pyrolytic bio-oil

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Published in 2020 at "Journal of Fuel Chemistry and Technology"

DOI: 10.1016/s1872-5813(20)30080-3

Abstract: Abstract A Fenton solution with different H2O2 concentrations was used to pretreat an alkali lignin (AL), and combined with fast pyrolysis,the change in the content of phenolic compounds containing methoxy group in light bio-oil was… read more here.

Keywords: fenton pretreatment; alkali lignin; oil; bio oil ... See more keywords