高校化学工程学报Issue(3)：743-747,5.DOI:10.3969/j.issn.1003-9015.2015.04.30.03
玉米芯纤维组分常压反应萃取一步分离
One-Step Separation of Reaction Extraction of Corncob Fiber Components under Atmospheric Pressure
刘瑞 1李小芳 2刘琴 1宋航 1兰先秋1
作者信息
- 1. 四川大学 化学工程学院,四川成都 610065
- 2. 西昌学院轻化工程学院,四川西昌 615000
- 折叠
摘要
Abstract
Corncob is a renewable agricultural solid waste and the majority of fiber hemicellulose in corncob is used in furfural production, thus many other components are wasted. This study used an alcohol-acid-water mixing system together with single-factor tests and orthogonal tests to analyze and optimize component separation. The results show that the following condition can be used to obtain maximum separation: liquid-solid ratio of 9, reaction time of 4 h, organic solvent volume fraction of 60% and sulfuric acid volume fraction of 4%.The preservation rate of cellulose is 91.81% under this condition, and the hydrolysis rate of hemicellulose is 93.49% with lignin removal rate of 57.37%.This system can achieve a better separation of corncob fiber components without high temperature and high pressure, and the organic solvent can be recycled.关键词
玉米芯/纤维组分/常压分离/工艺Key words
corncob/fiber component/atmospheric pressure separation/process分类
化学化工引用本文复制引用
刘瑞,李小芳,刘琴,宋航,兰先秋..玉米芯纤维组分常压反应萃取一步分离[J].高校化学工程学报,2015,(3):743-747,5.
