Utilization of stone apple seed biomass and discarded X-ray film blend for kinetic and thermodynamic attribute analysis for efficient energy refinery

IF 4.1 4区工程技术 Q3 ENERGY & FUELS

Biomass Conversion and Biorefinery Pub Date : 2025-04-04 DOI:10.1007/s13399-025-06826-9

P. Baranitharan, U. Elaiyarasan, Malinee Sriariyanun

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引用次数: 0

Abstract

The non-edible biomass brings attention to energy generation from the agro-residues. The co-pyrolysis of stone apple seed biomass (SAS) and waste X-ray film (WXF) was experimentally investigated. Thermo-gravimetric analyzer (TGA) was employed at varying heating rates (5, 10, 15, and 20 °C/min) to analyze the thermal degradation behavior of the samples. The kinetic parameters and thermal behavior of co-pyrolysis blend were estimated using the Starink, Flynn–Wall–Ozawa (FWO) and Kissinger–Akahira–Sunose (KAS) iso-conversational models were employed to assess the activation energy (E_α) and thermodynamic properties such as Gibbs energy (ΔG), enthalpy (ΔH), and entropy (ΔS). The average value of E_α when identified through Starink, FWO, and KAS models was estimated to be 211.55, 210.47, and 220.91 kJ/mol, with co-efficient of determination (R²) values of 0.91, 0.91, and 0.90 correspondingly. The average thermodynamic triplet values were estimated to be change in enthalpy (ΔH) = 214.74 kJ/mol, entropy (ΔS) = 32.01 J/mol.K, and Gibbs free energy (ΔG) = 189.74 kJ/mol, respectively. The insight into the kinetic and thermodynamic values reveals that the process is non-spontaneous and indicates the SAS and WXF can be utilized as alternative fuel feedstock owing to their environmentally friendly nature, sustainable energy generation, and ideal characteristics.

Graphical abstract

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利用石苹果种子生物质和废弃x射线混合膜进行高效能源精炼厂动力学和热力学属性分析

不可食用生物质引起了人们对利用农业废弃物发电的关注。对石苹果种子生物质（SAS）与废x射线膜（WXF）共热解进行了实验研究。采用热重分析仪（TGA）在不同的升温速率（5、10、15和20℃/min）下分析样品的热降解行为。采用Starink、Flynn-Wall-Ozawa （FWO）和Kissinger-Akahira-Sunose （KAS）等对话模型对共热解共混物的动力学参数和热行为进行了估算，并对共热解共混物的活化能（Eα）和吉布斯能（ΔG）、焓（ΔH）、熵（ΔS）等热力学性质进行了评估。通过Starink、FWO和KAS模型测定的Eα平均值分别为211.55、210.47和220.91 kJ/mol，测定系数（R2）分别为0.91、0.91和0.90。热力学三重态的平均变化值为焓（ΔH） = 214.74 kJ/mol，熵（ΔS） = 32.01 J/mol。K和吉布斯自由能（ΔG）分别为189.74 kJ/mol。对动力学和热力学值的深入研究表明，该过程是非自发的，并表明SAS和WXF由于其环保性质、可持续能源生产和理想的特性，可以用作替代燃料原料。图形抽象

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来源期刊

Biomass Conversion and Biorefinery Energy-Renewable Energy, Sustainability and the Environment

CiteScore

7.00

自引率

15.00%

发文量

1358

期刊介绍： Biomass Conversion and Biorefinery presents articles and information on research, development and applications in thermo-chemical conversion; physico-chemical conversion and bio-chemical conversion, including all necessary steps for the provision and preparation of the biomass as well as all possible downstream processing steps for the environmentally sound and economically viable provision of energy and chemical products.