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评估花生废物的生物能源潜力:高加热率燃烧行为和热力学分析

Suleiman Mousa¹, Abdulrahman Almithn¹, Ibrahim Dubdub¹

¹Chemical Engineering Department, College of Engineering, King Faisal University, P.O. Box 380, Al-Ahsa 31982, Saudi Arabia.

|March 14, 2026

概括

花生 (PnS) 燃烧显示出作为可持续生物燃料的巨大潜力,因为它具有重要的挥发性物质和加热价值. 动力分析揭示了复杂的纤维纤维素降解,三维扩散模型控制了反应机制.

科学领域:

生物质能源转换生物质能源转换
生物质的热化学加工.
可持续的生物燃料可持续的生物燃料

背景情况:

像花生 (PnS) 这样的农业残留物是丰富的,但未充分利用的生物质资源.
评估PNS燃烧特性对于开发可持续固体生物燃料至关重要.
了解PnS的热化学行为,可以告知其高效的能量转化.

研究的目的:

综合分析花生 (PnS) 的燃烧行为和动力学.
评估PNS作为可持续固体生物燃料的潜力.
阐明控制PNS热分解的反应机制.

主要方法:

物理化学表征:近距离,终极,范索斯特和FTIR分析.
在高加热速率 (2080 K分钟-1) 下进行非异热热重力测量分析 (TGA).
没有模型的 (弗里德曼,FWO,KAS,斯塔林克,基辛格,Vyazovkin) 和符合模型的 (Coats-Redfern) 动态分析.

主要成果:

PnS具有较高的挥发性物质 (65.30 wt%) 和加热值 (20.87 MJ kg-1),超过了许多农业残留物.
TGA表现出明显的分解阶段,主要的脱氧化在500700K之间.
动力分析显示了可变的激活能量 (23187 kJ mol-1),并确定了3D扩散 (D3) 模型作为控制机制.

结论:

由于其有利的燃烧特性,PNS是有前途的可持续固体生物燃料候选者.
基纤维素基质分解是复杂的,由扩散控制的过程控制.
在热力学上证实了PNS燃烧激活的内热和非自发性质.

关键词:

在TGA的动力学方面.激活能量是什么激活能量是什么生物能源是生物能源.生物质燃烧燃烧的生物质.石纤维素废弃物石纤维素废弃物花生贝花生贝.固体生物燃料是一种固体生物燃料.热力学参数的热力学参数

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