Collected Item: “Devolatilization behaviour of Kolubara and Kostolac lignite (Serbia) during the combustion process: A case study”
Врста публикације
Рад у часопису
Верзија рада
објављена верзија
Језик рада
енглески
Аутор/и (Милан Марковић, Никола Николић)
Miodrag Životić, Nenad Nikolić, Dragoslava Stojiljković, Danica Bajuk-Bogdanović, Dragana Životić
Наслов рада (Наслов - поднаслов)
Devolatilization behaviour of Kolubara and Kostolac lignite (Serbia) during the combustion process: A case study
Наслов часописа
International Journal of Coal Geology
Издавач (Београд : Просвета)
Elsevier BV
Година издавања
2024
Сажетак на енглеском језику
In this study the devolatization behaviour of lignite samples, of various grain sizes, on a wire mesh reactor is evaluated. Lignite samples were rapidly heated at four different temperatures (300, 500, 700 and 900 ◦C). The feed lignite reveals a high content of huminite, a low inertinite and liptinite contents in the Kostolac samples and a slightly higher liptinite content in the Kolubara samples. The char obtained at 300 ◦C and 500 ◦C shows slight petrographic and chemical changes. The major changes in chemical and petrographic compositions were observed in char heated at higher temperatures (700 ◦C and 900 ◦C). FTIR spectral data for both Kolubara and Kostolac lignite samples reveal a decrease in aliphatic- and oxygen-containing structures with increase in temperatures from 300 to 700◦C. The lack of aliphatic and oxygen-containing structures, the breakdown of clay minerals and negligible amount of water are detected in samples devolatilized at 900 ◦C where aromatic structures dominate.
Huminite reflectance of initial samples confirms the low rank (lignite) of all the samples. Char of all grain sizes obtained at 300◦C and 500◦C showed very small changes in the maceral composition and reflectance value and still corresponded to lignite rank. A significant change in maceral composition and increase reflectance is observed in char obtained at 700 ◦C and 900 ◦C of all grain sizes.
Huminite reflectance of initial samples confirms the low rank (lignite) of all the samples. Char of all grain sizes obtained at 300◦C and 500◦C showed very small changes in the maceral composition and reflectance value and still corresponded to lignite rank. A significant change in maceral composition and increase reflectance is observed in char obtained at 700 ◦C and 900 ◦C of all grain sizes.
Волумен/том или годиште часописа
295
Број часописа
104641
Укупан број страна рада (уколико не постоји пагинација)
20
DOI број
10.1016/j.coal.2024.104641
ISSN број часописа
0166-5162
Кључне речи на српском (одвојене знаком ", ")
„Деволатилизација“, „Реактор жичане мреже“, „Петрографски састав“, „Колубарски и Костолачки басен“
Кључне речи на енглеском (одвојене знаком ", ")
“Devolatilization“, “Wire mesh reactor“, “Petrographic composition“, “Kolubara and Kostolac Basins“
Линк
https://api.elsevier.com/content/article/PII:S0166516224001988?httpAccept=text/xml
Шира категорија рада према правилнику МПНТ
M20
Ужа категорија рада према правилнику МПНТ
М21а
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Формат дигиталног објекта
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