A study on combustion behaviour and reaction kinetics mechanism of some Egean region Turkish lignites

IF 2.2 4区 化学 Q2 Engineering
Dilan Köksal Öztürk, Menderes Levent, Kadir Gündoğan
{"title":"A study on combustion behaviour and reaction kinetics mechanism of some Egean region Turkish lignites","authors":"Dilan Köksal Öztürk,&nbsp;Menderes Levent,&nbsp;Kadir Gündoğan","doi":"10.1007/s11696-024-03717-7","DOIUrl":null,"url":null,"abstract":"<div><p>The presented paper is focused on the analysis of combustion behaviour and solid-state kinetic data of oxidation reactions of Soma-Manisa and Gediz-Kütahya lignite. Oxidation process was carried out with NI-TGA and tube furnace. The samples are heated up at temperature range from 25 to 1100 °C under multiple constant heating rates 10 °C/min, 15 °C/min, 20 °C/min and 30 °C/min in nitrogen atmosphere. Combustion characterizations of coal samples are studied by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Kinetic data analysis is based on model-free approaches by Kissinger-Akashiro-Sunose (KAS) and Ozawa-Flynn-Wall (OFW) with the helping of data during experimental study. The estimated kinetic constants are compared with experimental results. Oxidation parameters such as weight loss rate, burn-out temperature and reactivity of coal samples are calculated. Maximum weight loss rates are estimated at 0.54%/min Soma-Manisa lignite and 0.51%/min and Gediz-Kütahya lignite at 30 °C/min heating rate. Activation energies of coal samples are exhibited in the range 37.6—63.7 kJ/mol and 41.5–74.5 kJ/mol using OFW and KAS methods, respectively.</p></div>","PeriodicalId":513,"journal":{"name":"Chemical Papers","volume":"78 16","pages":"8877 - 8888"},"PeriodicalIF":2.2000,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11696-024-03717-7.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Papers","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11696-024-03717-7","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 0

Abstract

The presented paper is focused on the analysis of combustion behaviour and solid-state kinetic data of oxidation reactions of Soma-Manisa and Gediz-Kütahya lignite. Oxidation process was carried out with NI-TGA and tube furnace. The samples are heated up at temperature range from 25 to 1100 °C under multiple constant heating rates 10 °C/min, 15 °C/min, 20 °C/min and 30 °C/min in nitrogen atmosphere. Combustion characterizations of coal samples are studied by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Kinetic data analysis is based on model-free approaches by Kissinger-Akashiro-Sunose (KAS) and Ozawa-Flynn-Wall (OFW) with the helping of data during experimental study. The estimated kinetic constants are compared with experimental results. Oxidation parameters such as weight loss rate, burn-out temperature and reactivity of coal samples are calculated. Maximum weight loss rates are estimated at 0.54%/min Soma-Manisa lignite and 0.51%/min and Gediz-Kütahya lignite at 30 °C/min heating rate. Activation energies of coal samples are exhibited in the range 37.6—63.7 kJ/mol and 41.5–74.5 kJ/mol using OFW and KAS methods, respectively.

土耳其爱琴海地区一些褐煤的燃烧行为和反应动力学机制研究
本文主要分析了索玛-马尼萨(Soma-Manisa)和格迪兹-库塔希亚(Gediz-Kütahya)褐煤氧化反应的燃烧行为和固态动力学数据。氧化过程使用 NI-TGA 和管式炉进行。样品在氮气环境中以 10 °C/min, 15 °C/min, 20 °C/min 和 30 °C/min 的多个恒定加热速率在 25 至 1100 °C 的温度范围内加热。通过 X 射线衍射(XRD)和傅立叶变换红外光谱(FTIR)研究煤样的燃烧特性。动力学数据分析基于 Kissinger-Akashiro-Sunose (KAS) 和 Ozawa-Flynn-Wall (OFW) 的无模型方法,并在实验研究数据的帮助下进行。估算出的动力学常数与实验结果进行了比较。计算了煤样的氧化参数,如失重率、烧尽温度和反应性。最大失重率估计为 0.54%/min Soma-Manisa 褐煤和 0.51%/min Gediz-Kütahya 褐煤,加热速度为 30 °C/分钟。使用 OFW 和 KAS 方法,煤样的活化能分别为 37.6-63.7 kJ/mol 和 41.5-74.5 kJ/mol。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Chemical Papers
Chemical Papers Chemical Engineering-General Chemical Engineering
CiteScore
3.30
自引率
4.50%
发文量
590
期刊介绍: Chemical Papers is a peer-reviewed, international journal devoted to basic and applied chemical research. It has a broad scope covering the chemical sciences, but favors interdisciplinary research and studies that bring chemistry together with other disciplines.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信