Characterization and Hydrothermal Conversion of Lignin Produced from Corncob Acid Hydrolysis Residue
Characterization and Hydrothermal Conversion of Lignin Produced from Corncob Acid Hydrolysis Residue
复制标题
玉米芯酸解渣木质素的表征及水热转化
DOI：
10.15376/biores.9.3.4596-4607
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发表时间：
2014-06
期刊：
影响因子：
1.5
通讯作者：
Jiang Weikun
中科院分区：
文献类型：
--
作者：
Wang Chao;Lyu Gaojin;Yang Guihua;Chen Jiachuan;Jiang Weikun
木质素是玉米芯酸解残渣（CAHR）的主要成分之一。它可以通过生物精炼用作生物材料和生化生产的原料。在本研究中，提取了CAHR木质素，并生产了酶解/温和酸解木质素（EMAL），以确保有效回收木质素。接下来，进行EMAL的水热转化。深入研究了温度、时间和去离子水与EMAL的质量比等工艺条件对水热转化的影响，以量化芳烃的分析。由CAHR制备的EMAL具有G-S-H型结构，其中对羟基苯基单元是主要结构单元，其次是愈创木基结构单元。紫丁香基结构单元不太常见。当反应温度为310℃、反应时间为30min、质量比为80:1时，苯酚、愈创木酚和4-乙基苯酚的产率(wt.%)分别达到最大值1.26%、0.75%和1.16%。
Lignin is one of the main components of corncob acid hydrolysis residue (CAHR). It can be used as a feedstock for biomaterial and biochemical production via biorefining. In this study, CAHR lignin was extracted, and enzymatic/mild acidolysis lignin (EMAL) was produced to ensure efficient lignin recovery. Next, hydrothermal conversion of the EMAL was carried out. The influences of process conditions including the temperature, time, and mass ratio of deionized water to EMAL on the hydrothermal conversion were thoroughly investigated to quantify analysis of the aromatics. EMAL produced from CAHR had a structure of the G-S-H type, in which the p-hydroxyphenyl unit was the primary structural unit, followed by the guaiacyl structural unit. The syringyl structural unit was less common. The yields (wt. %) of phenol, guaiacol, and 4-ethyl-phenol reached maxima of 1.26%, 0.75%, and 1.16%, respectively, at a reaction temperature of 310 °C and time of 30 min with a mass ratio of 80:1.
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甘蔗渣木质素的化学结构和热化学性质
DOI：
10.1007/s11632-006-0021-8
发表时间：
2006-09
期刊：
Forestry Studies in China
影响因子：
--
作者：
通讯作者：
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影响因子：
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作者：
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通讯作者：
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DOI：
10.1016/j.cep.2007.09.001
发表时间：
2008-09-01
影响因子：
4.3
作者：
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影响因子：
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作者：
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