生物质(柳条榕树气生根)与聚苯乙烯泡沫塑料共热解实验研究精要.doc
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生物质(柳条、榕树气生根)与聚苯乙烯泡沫塑料
共热解实验研究
摘要
本文通过热重分析法考察了聚苯乙烯泡沫塑料(EPS)、两种生物质(柳条、榕树气生根)及其混合物热解行为,对比了不同升温速率对EPS热解的影响,以及不同原料配比对共热解的影响。结果表明,升温速率的不同对EPS的热解没有明显影响,加入榕树气生根比例的不同对榕树气生根与EPS共热解影响不显著.两种生物质与EPS的共热解都存在拮抗作用。动力学分析结果表明,采用一级动力学模型可以很好的拟合实验数据。EPS和榕树气生根单独热解可用单个一级反应模型描述,柳条单独热解、两种生物质与EPS共热解可以用两个一级反应模型描述。
关键词:生物质;聚苯乙烯泡沫塑料;共热解;动力学Copyrolysis of Polystyrene Foam Plastics and biomass (wicker, banyan gas root)
Abstract
This article based on the thermogravimetric method, pyrolysis and copyrolysis of polystyrene foam plastics (EPS) and two kinds of biomass (wicker, banyan gas root) are inspected. Compared the pyrolysis of EPS at different heating rates, and the co-pyrolysis at different ratio of raw materials. The results show that different heating rates pyrolysis of EPS had no significant effect, the influence of add different percentage of banyan gas root is not obvious in the co-pyrolysis of EPS and banyan gas root,there are antagonist role in the co-pyrolysis of two kinds of biomass and EPS. The kinetic analysis indicates that the pyrolytic processes can be described as first order reactions model, a quite good fitting of experimental data was obtained for all samples studied. The only EPS and banyan gas root can be described as the one model, than the only wicker,the EPS and biomass co-pyrolysis need be described as the two consecutive models.
Key words: Biomass; EPS; Co-pyrolysis; Kinetics
目录
摘要 1
Abstract 2
第一章 文献综述 5
1.1引言 5
1.2生物质热解 6
1.2.1生物质热解方法与机理 6
1.2.2国内外对生物质热解研究概况 6
1.3废塑料热解研究现状 7
1.4生物质与废塑料共热解研究现状 8
1.5生物质与废塑料共热解发展前景 9
1.6小结 10
第二章 生物质基本特性测定 11
2.1生物质主要成分含量测定 11
2.1.1原料 11
2.1.2实验原理 11
2.1.3仪器和试剂 11
2.1.4实验步骤 12
2.1.5实验结果 14
2.2工业分析 14
2.3小结 15
第三章 生物质、EPS单独和混合热重分析 16
3.1实验仪器 16
3.2实验原理 16
3.3实验步骤 17
3.4生物质、塑料单独热重分析 17
3.4.1不同升温速率对热解的影响 18
3.4.2聚苯乙烯泡沫塑料热解基本特性 19
3.4.3柳条热解基本特性 19
3.4.5榕树气生根热解基本特性 21
3.5 生物质、塑料混合热重分析 22
3.5.1不同原料配比对热解的影响 22
3.5.2柳条与聚苯乙烯泡沫塑料共热解 25
3.5.3榕树气生根与聚苯乙烯泡沫塑料共热解 27
3.6生物质、EPS单独和混合差热分析 29
3.7小结 31
第四章 生物质与EPS热解动力学研究 33
4.1动力学模型的基本方程 33
4.2动力学分析 34
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