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Pyrolytic characteristics of some biomass materials and influence of biomass ingredients

机译：一些生物质原料的热解特性及其对生物质成分的影响

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In this study, some biomass samples such as almond shell, walnut shell, hazelnut shell, rapeseed, and tobacco waste were subjected to slow pyrolysis process. Major biomass ingredients such as hemicellulose, holocelulose (hemicellulose + cellulose), lignin, and extractive-free bulk of these biomass samples were analytically isolated. Pyrolytic properties of the original biomass samples and the isolated biomass ingredients were investigated and compared. Pyrolysis experiments were carried out using thermogravimetric method under dynamic nitrogen atmosphere of 40 mL/min. Temperature was increased from ambient to 1073 K with a heating rate of 20 K/min. Derivative thermogravimetric analysis (DTG) curves of the samples were derived. The results of this study showed that cellulosics and hemicelluloses were the major source of the volatile products during pyrolysis, whereas lignin contents of the samples contributed mainly to the solid char. The yields and distributions of the pyrolysis products were a function of these ingredients, and they also controlled the time required for the completion of the whole pyrolysis process.
机译：在这项研究中，对一些生物质样品（如杏仁壳，核桃壳，榛子壳，油菜籽和烟草废料）进行了缓慢的热解过程。分析性分离了这些生物质样品的主要生物质成分，例如半纤维素，全纤维素（半纤维素+纤维素），木质素和无萃取物。研究并比较了原始生物质样品和分离出的生物质成分的热解特性。使用热重法在40 mL / min的动态氮气气氛下进行热解实验。温度以20 K / min的加热速率从环境温度升高到1073K。得出了样品的热重分析（DTG）曲线。这项研究的结果表明，纤维素和半纤维素是热解过程中挥发性产物的主要来源，而样品中木质素的含量主要是对固体碳的贡献。热解产物的产率和分布是这些成分的函数，并且它们还控制了完成整个热解过程所需的时间。

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