Pyrolysis Characteristics of Straw Fuel and Its Compound Fuel
- 1Northeast Electric Power University , , , ,
- 2Jilin Technology College of Electronic Information , , , ,
- 3China Energy Boxing Power Generation Co., Ltd. , , ,
Abstract
To address the global energy crisis and valorize industrial and agricultural solid waste, a corn straw-oil sludge composite fuel (CF) with a mass ratio of 1.5:1 was prepared. Pure corn straw fuel (SF) served as the control. The pyrolysis characteristics of both pellet fuels up to 1000 °C were systematically investigated via thermogravimetric (TG) analysis at heating rates of 10, 20, and 30 °C/min. The pyrolysis characteristics were analyzed via characteristic parameters, Gaussian fitting assignments, and the Flynn–Wall–Ozawa (FWO) and Kissinger–Akahira–Sunose (KAS) model-free kinetic methods. Within the tested temperature range (50–1000 °C), CF exhibited higher characteristic parameters than SF, suggesting facile initiation under the conditions tested. A positive deviation between the experimental and calculated TG curves preliminarily indicated a synergistic effect during the core copyrolysis stage (170–650 °C). Gaussian fitting was tentatively assigned to four bond cleavage stages for both fuels, with the cleavage of Cal–heteroatom bonds as the dominant reaction (proportion >50%). The addition of oil sludge introduced more alkyl-substituted aromatic compounds into CF, increasing the proportion of Car–Cal and Car–heteroatom bond cleavage from 6.8% (SF) to 15.8% (CF). The average apparent activation energy of CF was higher than that of SF. Notably, CF exhibited a kinetic characteristic of low initial activation energy and high overall activation energy, which favored facile pyrolysis initiation and inhibition of side reactions.
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BibTeX
@article{huang2026pyrolysis,
title = {{Pyrolysis Characteristics of Straw Fuel and Its Compound Fuel}},
author = {Yue Huang and Wenpeng Hong and Haoshu Ding and Shuo Gao and Xinyue Jing and Yuhao Zhang and Jingru Bai},
journal = {ACS Omega},
year = {2026},
month = oct,
doi = {10.1021/acsomega.6c07892},
url = {https://pubs.acs.org/acsodf/article/11/42/65379/5448676/Pyrolysis-Characteristics-of-Straw-Fuel-and-Its},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - JOUR
TI - Pyrolysis Characteristics of Straw Fuel and Its Compound Fuel
AU - Yue Huang
AU - Wenpeng Hong
AU - Haoshu Ding
AU - Shuo Gao
AU - Xinyue Jing
AU - Yuhao Zhang
AU - Jingru Bai
PY - 2026
DA - 2026/10/12
JO - ACS Omega
DO - 10.1021/acsomega.6c07892
UR - https://pubs.acs.org/acsodf/article/11/42/65379/5448676/Pyrolysis-Characteristics-of-Straw-Fuel-and-Its
AB - To address the global energy crisis and valorize industrial and agricultural solid waste, a corn straw-oil sludge composite fuel (CF) with a mass ratio of 1.5:1 was prepared. Pure corn straw fuel (SF) served as the control. The pyrolysis characteristics of both pellet fuels up to 1000 °C were systematically investigated via thermogravimetric (TG) analysis at heating rates of 10, 20, and 30 °C/min. The pyrolysis characteristics were analyzed via characteristic parameters, Gaussian fitting assignments, and the Flynn–Wall–Ozawa (FWO) and Kissinger–Akahira–Sunose (KAS) model-free kinetic methods. Within the tested temperature range (50–1000 °C), CF exhibited higher characteristic parameters than SF, suggesting facile initiation under the conditions tested. A positive deviation between the experimental and calculated TG curves preliminarily indicated a synergistic effect during the core copyrolysis stage (170–650 °C). Gaussian fitting was tentatively assigned to four bond cleavage stages for both fuels, with the cleavage of Cal–heteroatom bonds as the dominant reaction (proportion >50%). The addition of oil sludge introduced more alkyl-substituted aromatic compounds into CF, increasing the proportion of Car–Cal and Car–heteroatom bond cleavage from 6.8% (SF) to 15.8% (CF). The average apparent activation energy of CF was higher than that of SF. Notably, CF exhibited a kinetic characteristic of low initial activation energy and high overall activation energy, which favored facile pyrolysis initiation and inhibition of side reactions.
SN - 2470-1343
ER -