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果皮作为潜在的生物质原料的表征,燃烧行为和动力学和热力学建模

Mohamed Anwar Ismail¹, Ibrahim Dubdub², Suleiman Mousa²

¹Mechanical Engineering Department, King Faisal University, Al-Ahsa 31982, Saudi Arabia.

|July 12, 2025

概括

果皮是一种有前途的固体生物燃料,具有高加热值和有利的燃烧动力学. 然而,由于其高含量,需要进行灰处理,以防止在工业应用中使用.

科学领域:

生物质能源研究生物质能源研究
材料科学是一种材料科学.
化学动力学化学动力学

背景情况:

果皮等农业产业残留物丰富,但未得到充分利用.
固体生物燃料为化石燃料提供了一个可持续的替代品.
了解燃烧特性对于有效利用生物燃料至关重要.

研究的目的:

为了评估果皮作为固体生物燃料.
描述其物理化学特性和燃烧动力学.
评估其对工业应用的潜力.

主要方法:

物理化学表征 (FTIR,XRD,SEM) 进行.
在不同加热速度下进行非异热热重力测量分析 (TGA).
使用六种无模型方法 (例如,弗里德曼,FWO,KAS) 的动态分析.
热力学分析 (激活能量,热量,吉布斯自由能量).

主要成果:

果皮表现出富含基的表面和多孔的微观结构.
燃烧发生在三个阶段:脱水,半纤维素/纤维素和纤维素/木质素氧化.
激活能量范围在52-197 kJ mol-1之间,平均值为~111 kJ mol-1.
燃烧遵循一个三维扩散机制 (D3).
高加热值 (HHV) 是21.9 MJ 千克-1.1.
发现了高含量的氧化 (K2O).

结论:

果皮是一种可行的补充固体生物燃料,用于工业炉.
良好的燃烧动力学和高加热值支持其使用.
由于K2O含量很高,可能造成的渣需要针对大规模应用的管理策略.

关键词:

在TGA上,TGA就是TGA.生物质燃烧燃烧的生物质.纤维素纤维素的使用方法半纤维素的部分运动学的动力学.红色的线性物质是红色的.果皮果皮果皮果皮模型装配 - 适合模型的没有模特免费的模型.热力学参数的热力学参数

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