Kinetic analysis of the gas-phase pyrolysis of carbohydrates
Kinetic analysis of the gas-phase pyrolysis of carbohydrates
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DOI：
10.1016/s0016-2361(01)00056-4
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发表时间：
2001-10
期刊：
影响因子：
7.4
通讯作者：
E. Shin;M. Nimlos;M. Nimlos;R. Evans
中科院分区：
文献类型：
--
作者：
E. Shin;M. Nimlos;M. Nimlos;R. Evans
纤维素衍生的热解产物和选定的初级产物，5-羟甲基糠醛（5-HMF），左旋葡聚糖和羟基乙醛（HAA）被用作起始原料的气相热解动力学研究，通过使用流动管反应器和产物检测与分子束质谱（MBMS）。多元数据分析用于确定集总产物动力学分析的主要产物类别。在这项工作中采用的方法进行了验证，使用乙基烯丙基醚（EAE）热解。基于集总的一级、二级和三级产物，建立了左旋葡聚糖、5-HMF和纤维素衍生的热解产物的两步序列模型。HAA的一步模型。基于这些经验模型给出了反应速率和Arrhenius参数。
Cellulose-derived pyrolysis products and selected primary products, 5-hydroxymethyl furfural (5-HMF), levoglucosan and hydroxyacetaldehyde (HAA) were used as starting materials for kinetic studies of gas-phase pyrolysis by using flow tube reactors and product detection with molecular beam mass spectrometry (MBMS). Multivariate data analysis was used to identify major product classes for lumped product kinetic analysis. The methodology employed in this work was verified using ethyl allyl ether (EAE) pyrolysis. Two-step sequential models based on lumped primary, secondary and tertiary products were developed for levoglucosan, 5-HMF and cellulose derived pyrolysis products. A one-step model was developed for HAA. Reaction rates and Arrhenius parameters are presented based on these empirical models.