| 银杏渣超临界甲醇解聚产物分析 |
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| 引用本文： | 唐仕荣,宋慧,刘全德,宗志敏,魏贤勇. 银杏渣超临界甲醇解聚产物分析[J]. 环境科学与技术, 2009, 32(8) |
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| 作者姓名： | 唐仕荣 宋慧 刘全德 宗志敏 魏贤勇 |
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| 作者单位： | 徐州工程学院食品工程学院,江苏,徐州,221008;中国矿业大学化学工程学院,江苏,徐州,221008;徐州工程学院食品工程学院,江苏,徐州,221008;中国矿业大学化学工程学院,江苏,徐州,221008 |
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| 基金项目： | 江苏省教育厅高校自然科学研究计划项目 |
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| 摘 要： | 考察了银杏渣粉末在超临界甲醇中的解聚反应,用傅立叶变换红外光谱仪(FTIR)和气相色谱/质谱联用仪(GC/MS)分析了解聚产物。结果表明,超临界甲醇解聚产物(SCMD)中成分十分复杂,GC/MS分析鉴定出86种有机化合物,其中59种为含氧有机化合物,有酯、酚、醚、醇和酮等,还检测出少量正构烷烃、烯烃、芳烃和含氮有机化合物,反映了SCMD的高含氧量特性。SCMD中10.65%的苯酚类物质、3.34%的芳烃类物质和5.20%的苯甲醚类化合物可能源于木质素在超临界甲醇中的解聚作用,而32.84%的甲酯及二甲酯类化合物可能是甲醇与银杏渣组成和解聚产物酯化反应的结果。由此可以推断出在银杏渣的超临界解聚过程中涉及了甲醇与银杏渣的醇解和热解的协同反应。
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| 关 键 词： | 银杏渣 解聚 气相色谱/质谱联用分析 红外光谱分析 超临界甲醇 |
Analysis of Depolymerization Product of Ginkgo Biloba Residues in Supercritical Methanol |
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| TANG Shi-rong,SONG Hui,LIU Quan-de,ZONG Zhi-min,WEI Xian-yong. Analysis of Depolymerization Product of Ginkgo Biloba Residues in Supercritical Methanol[J]. Environmental Science and Technology, 2009, 32(8) |
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| Authors: | TANG Shi-rong SONG Hui LIU Quan-de ZONG Zhi-min WEI Xian-yong |
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| Affiliation: | 1.Department of Food Engineering;Xuzhou Institute of Technology;Xuzhou 221008;China;2.School of Chemical Engineering;China University of Mining and Technology;China |
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| Abstract: | Reaction of ginkgo biloba residues with methanol was conducted under supercritical conditions, and depolymerization product was analyzed with FTIR and GC/MS.Results showed that its components were quite complex,and 86 organic compounds were identified,in which there were 59 kinds of oxygen-containing organic compounds including esters,phenols,aethers,alcohols and ketone in the methanolyzed product.Small amounts of normal alkanes,alkenes and nitrogen-containing organic compounds were also detected,which sho... |
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| Keywords: | ginkgo biloba residue depolymerization GC/MS FTIR supercritical methanol |
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