在亚临界水中对木质纤维素生物质进行水热碱性处理以生成微晶纤维素

Q1 Social Sciences

South African Journal of Chemical Engineering Pub Date : 2024-10-24 DOI:10.1016/j.sajce.2024.10.008

Siti Machmudah , Wahyudiono , Prida Novarita Trisanti , Heru Setyawan , Suci Madhania , Kriyo Sambodho , Sugeng Winardi , Tadafumi Adschiri , Motonobu Goto

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引用次数: 0

摘要

与木质纤维素生物质一样，木材废锯屑富含纤维素，通过去除半纤维素和木质素成分，有可能用作生产微晶纤维素（MCC）的原料。在水热碱性处理（100 至 140 °C）条件下，木质素和半纤维素基团的连接可能发生断裂，从而产生固体残留物，即所谓的富含纤维素的固体产品。傅立叶变换红外分析结果表明，随着操作温度的升高和/或处理时间的延长，非纤维素成分的去除率有所提高。XRD 衍射图样证明，改善操作参数（温度和/或时间）也可提高固体产品的结晶度指数。相反，固体产品的产量会随着操作温度的升高和/或处理时间的延长而降低。

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Hydrothermal alkaline treatment of lignocellulosic biomass for microcrystalline cellulose generation at subcritical water

Like lignocellulosic biomass, wood waste sawdust is rich in cellulose and can potentially be used as a source of microcrystalline cellulose (MCC) production via removal of hemicellulose and lignin constituents. Under hydrothermal alkaline treatment (100 to 140 °C), the breaking in the linkages of lignin and hemicellulose groups may happen, resulting in the solid residue, which is known as a cellulose-rich solid product. Results of FTIR analysis indicated that the removal of non-cellulosic constituents improved with increasing operating temperature and/or the prolonged treatment time. The XRD diffractogram pattern proved that improving the operating parameters (temperature and/or time) may also improve the crystallinity index of the solid product. On the contrary, the yield of the solid product decreases with increasing operating temperature and/or the prolonged treatment time.

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来源期刊

South African Journal of Chemical Engineering Social Sciences-Education

CiteScore

8.40

自引率

0.00%

发文量

100

审稿时长

33 weeks

期刊介绍： The journal has a particular interest in publishing papers on the unique issues facing chemical engineering taking place in countries that are rich in resources but face specific technical and societal challenges, which require detailed knowledge of local conditions to address. Core topic areas are: Environmental process engineering • treatment and handling of waste and pollutants • the abatement of pollution, environmental process control • cleaner technologies • waste minimization • environmental chemical engineering • water treatment Reaction Engineering • modelling and simulation of reactors • transport phenomena within reacting systems • fluidization technology • reactor design Separation technologies • classic separations • novel separations Process and materials synthesis • novel synthesis of materials or processes, including but not limited to nanotechnology, ceramics, etc. Metallurgical process engineering and coal technology • novel developments related to the minerals beneficiation industry • coal technology Chemical engineering education • guides to good practice • novel approaches to learning • education beyond university.