| 自催化麦草乙醇法制浆过程中木素结构的变化 |
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| 引用本文： | 岳小鹏,张美云,李长亮. 自催化麦草乙醇法制浆过程中木素结构的变化[J]. 陕西科技大学学报, 2007, 25(2): 9-12,29 |
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| 作者姓名： | 岳小鹏 张美云 李长亮 |
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| 作者单位： | 陕西科技大学造纸工程学院,陕西西安710021 |
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| 摘 要： | 以麦草原料为对象,在原有工艺与机理研究的基础上,通过对乙醇浆中残余木素及溶出木素的紫外、红外和^1H核磁共振波谱的分析,对麦草自催化乙醇法制浆过程中木素的结构变化进行了研究.实验证明,麦草自催化乙醇法制浆过程中愈创木基最易脱除,其次是对羟苯基,紫丁香基最难脱除.由此推断,乙醇法制浆过程中有局部化学效应,木素脱除首先从胞间层开始,胞间层木素脱除后原料便已成浆.
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| 关 键 词： | 自催化 乙醇法制浆 麦草 木素 结构变化 |
| 文章编号： | 1000-5811（2007）02-0009-04 |
| 修稿时间： | 2007-01-07 |
STUDY ON CONFIGURATION TRANSFORMATION OF LIGNIN IN WHEAT STRAW AUTO-CATALYZED ETHANOL PULPING PROCESS |
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| YUE Xiao-peng,ZHANG Mei-yun,LI Chang-liang. STUDY ON CONFIGURATION TRANSFORMATION OF LIGNIN IN WHEAT STRAW AUTO-CATALYZED ETHANOL PULPING PROCESS[J]. Journal of Shaanxi University of Science & Technology(Natural Science Edition), 2007, 25(2): 9-12,29 |
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| Authors: | YUE Xiao-peng ZHANG Mei-yun LI Chang-liang |
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| Abstract: | Configuration transformation of lignin in wheat straw auto-catalyzed ethanol pulping process is studied by UV,FT-IR and 1H-NMR in this paper.The results show that guaiacyl(G) units are the easiest to remove,followed by p-hydroxyphenyl propane(H) units and syringyl(S) units during pulping process.This is different from the Soda-AQ pulping.The effect of topochemistry exists during ethanol pulping process.At first,lignin in middle lamella is removed,when this part of lignin is fully removed,wheat straw changes into pulp. |
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| Keywords: | auto-catalyzed ethanol-water pulping wheat straw lignin configuration transformation |
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