文献类型：期刊文献

中文题名：纤维素CP-GC-MS法裂解行为研究

英文题名：Study of Thermal Transformations of Cellulose under Curie-point Pyrolysis-GC-MS Conditions

作者：刘军利[1,2,3,4,5] 蒋剑春[1,2,3,4] 黄海涛[1,2,3,4]

第一作者：刘军利

机构：[1]中国林业科学研究院林产化学工业研究所;[2]生物质化学利用国家工程实验室;[3]国家林业局林产化学工程重点开放性实验室;[4]江苏省生物质能源与材料重点实验室;[5]中国林业科学研究院林业新技术研究所

年份：2009

卷号：29

期号：5

起止页码：47-53

中文期刊名：林产化学与工业

外文期刊名：Chemistry and Industry of Forest Products

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金：中央级公益性科研院所基本科研业务费专项资金(CAFINT2007C11);国家自然科学基金资助项目(30671649)

语种：中文

中文关键词：纤维素;居里点裂解;热解;气相色谱;质谱

外文关键词：cellulose ; Curie-point pyrolysis ; pyrolysis ; gas chromatography ; mass spectroscopy

分类号：TQ315.2;TQ351

摘要：采用居里点裂解仪-气相色谱仪-质谱仪（CP-GC-MS）联用分析技术,研究了居裂解温度、时间对纤维素快速裂解产物组成及其含量的影响。结果表明,纤维素在居裂解过程中左旋葡聚糖始终是裂解的主体产物;纤维素在300~370℃居裂解主要生成糖类单体化学品;随着居裂解温度的进一步提高,纤维素解聚形成的单体裂解成为其他小分子的醛酮类化合物种类和含量大幅度提高;居裂解时间的增加对CP-GC-MS谱图的色谱峰没有影响,只是居裂解反应的中间体左旋葡聚糖含量降低,其它产物含量保持不变或有所提高;在居裂解温度358℃、居裂解时间1 s时,左旋葡聚糖含量高达73.07%。
The influence of different Curie-point pyrolysis temperature and time on the relative content of pyrolysis products obtained by Curie-point pyrolysis from the microcrystalline cellulose was investigated by pyrolysis-gas chromatography-mass spec- troscopy（ CP-GC-MS）. During the Curie-point pyrolysis process, the main component of pyrolysis products was levoglucosan all the time. Under pyrolysis temperature 300-370℃, sugar chemicals were obained from cellulose mostly. With the enhancement of pyrolysis temperature, the kind and content of chemicals of small molecular aldehyde, ketone, which were made from the second reaction of monomer depolymerized from cellulose, were improved greatly. The chromatogram apexes of CP-GC-MS were not changed with the increment of pyrolysis time. Only the relative content of levoglucosan was decreased and the other products were kept the line or increased. The content of levoglucosan reached 73.07 % at the conditions of Curie-point pyrolysis temperature 350℃, Curie-point pyrolysis time 1 s.