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Delignification of autohydrolyzed wood in media containing water and a protic ionic liquid
Journal of Wood Chemistry and Technology ( IF 1.7 ) Pub Date : 2020-05-31 , DOI: 10.1080/02773813.2020.1746808
Lucía Penín 1 , Valentín Santos 1 , Juan Carlos Parajó 1
Affiliation  

Abstract Eucalyptus nitens wood samples were treated with hot, compressed water (autohydrolysis) to solubilize the hemicellulosic fraction, and the resulting solid (autohydrolyzed wood) was delignified in media containing water and an acidic ionic liquid (either 1-butyl-3-methylimidazolium hydrogen sulfate or triethylammonium hydrogen sulfate). The solid yields and the compositional changes caused by delignification were studied using empirical modeling of data. The effects of selected variables (water content of the reaction media, temperature and reaction time) were assessed on a quantitative basis, enabling the selection of optimal reaction conditions. Aspects regarding the selectivity of the separation of the diverse components are discussed, and the results are compared with data reported in related studies.

中文翻译:

自水解木材在含有水和质子离子液体的介质中的脱木素

摘要 Eucalyptus nitens 木材样品用热压缩水(自水解)处理以溶解半纤维素部分,所得固体(自水解木材)在含有水和酸性离子液体(1-丁基-3-甲基咪唑鎓氢)的介质中脱木质素。硫酸盐或三乙基硫酸氢铵)。使用数据的经验模型研究了脱木质素引起的固体产率和组成变化。在定量基础上评估所选变量(反应介质的水含量、温度和反应时间)的影响,从而能够选择最佳反应条件。讨论了有关不同组分分离选择性的方面,并将结果与​​相关研究报告的数据进行了比较。
更新日期:2020-05-31
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