Department of Chemical Engineering &Technology, IIT (BHU) Varanasi, Varanasi 221005, India.
Department of Chemical Engineering &Technology, IIT (BHU) Varanasi, Varanasi 221005, India.
Bioresour Technol. 2019 May;279:262-270. doi: 10.1016/j.biortech.2019.01.137. Epub 2019 Jan 31.
Pyrolysis of sugarcane (Saccharum officinarum L) leaves (SCL) has been investigated using DTA/TGA and DSC techniques. Proximate and ultimate analyses and calorific value measurement have been carried out using standard protocols. The sugar cane leaves contain 44% cellulose, 22% hemicellulose and 17% lignin. The pyrolysis have been carried out at six heating rates varying from 5 to 40 °C/min. Analysis of the pyrolysis results has been carried using iso-conversional model free methods as well as multiple linear regression method. For the fractional conversion range of 0.05-0.95, the average apparent activation energy values evaluated from iso-conversional methods have ranged from 214.9 to 239.6 kJ/mol where as in the case of multiple linear regression analysis it has ranged from 25.06 to 57.23 kJ/mol. The multi-step reaction mechanism has been investigated using the Criado method. The results of this study are useful for the design of large scale biomass thermal conversion process.
采用 DTA/TGA 和 DSC 技术研究了甘蔗（Saccharum officinarum L）叶的热解。使用标准协议进行了近似分析、最终分析和热值测量。甘蔗叶含有 44%的纤维素、22%的半纤维素和 17%的木质素。热解在 5 至 40°C/min 的六个加热速率下进行。使用等转化率无模型方法以及多元线性回归方法对热解结果进行了分析。在转化率为 0.05-0.95 的分数范围内，从等转化率方法评估的平均表观活化能值范围为 214.9 至 239.6 kJ/mol，而在多元线性回归分析的情况下，其值范围为 25.06 至 57.23 kJ/mol。使用 Criado 方法研究了多步反应机理。这项研究的结果对于设计大规模生物质热转化过程是有用的。
