Experimental and Modelling Studies of Biomass Pyrolysis
Experimental and Modelling Studies of Biomass Pyrolysis
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DOI：
10.1016/s1004-9541(11)60217-6
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发表时间：
2012-06-01
影响因子：
3.8
通讯作者：
Hui, Chi Wai
中科院分区：
文献类型：
--
作者：
Lam, Ka Leung;Oyedun, Adetoyese Olajire;Hui, Chi Wai
分析原料油的热解特性以及工艺参数对热解结果的影响，可以为热解工艺的设计、操作和优化提供指导。本工作旨在利用实验和模拟的方法进行分析的三种生物质原料-木屑，竹屑和麻疯树籽饼渣，并提供见解的热解过程的设计和操作。在实验部分，研究了升温速率，热解温度和样品尺寸对热解的影响，采用常用的热分析技术。对于建模部分，一个瞬态的数学模型，它集成了从实验研究的原料特性被用来模拟选定的生物质原料颗粒的反应器场景的热解过程。该模型由描述热解动力学和热流、颗粒传热、颗粒收缩和反应器操作的几个子模型组成。通过实验和模拟研究更好地了解工艺条件和原料特性对热解的影响，本文讨论了热解工艺设计和操作中原料粒度、热解能量使用、加工时间和产品质量之间的相互关系。
The analysis on the feedstock pyrolysis characteristic and the impacts of process parameters on pyrolysis outcomes can assist in the designing, operating and optimizing pyrolysis processes. This work aims to utilize both experimental and modelling approaches to perform the analysis on three biomass feedstocks-wood sawdust, bamboo shred and Jatropha Curcas seed cake residue, and to provide insights for the design and operation of pyrolysis processes. For the experimental part, the study investigated the effect of heating rate, final pyrolysis temperature and sample size on pyrolysis using common thermal analysis techniques. For the modelling part, a transient mathematical model that integrates the feedstock characteristic from the experimental study was used to simulate the pyrolysis progress of selected biomass feedstock particles for reactor scenarios. The model composes of several sub-models that describe pyrolysis kinetic and heat flow, particle heat transfer, particle shrinking and reactor operation. With better understanding of the effects of process conditions and feedstock characteristics on pyrolysis through both experimental and modelling studies, this work discusses on the considerations of and interrelation between feedstock size, pyrolysis energy usage, processing time and product quality for the design and operation of pyrolysis processes.