Thermogravimetric Analysis of Combustion of Semi-Coke Obtained from Coniferous Wood and Mixtures on Their Basis : научное издание

Описание

Тип публикации: статья из журнала

Год издания: 2024

Идентификатор DOI: 10.3390/fire7110385

Аннотация: <jats:p>Coal remains one of the most used solid fuels for heat and electricity generation but burning coal releases large amounts of CO2 into the urban atmosphere in addition to harmful substances. In order to reduce the consumption of solid fossil fuels, it is necessary to search for fuels capable of replacing coal in terms of itsПоказать полностьюthermal and environmental characteristics. One of the best alternative fuels is biomass, which is considered carbon neutral, but its thermal characteristics are worse than those of solid fossil fuels. In this work, an alternative to coal was studied for the first time, which was semi-coke, obtained by gasification at a temperature of 700–900 °C, the heat of combustion of which turned out to be higher than that of biomass before thermal treatment by 75%. We also studied fuel mixtures based on the resulting semi-coke. The aim of the work is to determine the main characteristics of combustion of semi-coke obtained from coniferous wood and mixtures based on them. The method of thermogravimetric analysis in oxidising medium at a heating rate of 20 °C/min was applied for the research. According to the results of this analysis, the ignition and burnout temperatures were determined, the combustion index was determined, the duration of coke residue combustion was determined, and synergetic interactions between the mixture components influencing the combustion characteristics were established. It was found that the ignition temperature of semi-coke is more than 50% higher than that of biomass and the burnout temperature is 10% higher. Adding 50% of biomass to semi-coke increases the combustion index by more than 30% and decreases the ignition temperature and burnout temperature. The mixture components synergistically interact with each other during combustion to reduce the value of maximum mass loss rate. It was found that the atomic ratios of O/C and H/C in semi-coke are lower than in biomass before gasification.</jats:p>

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Издание

Журнал: Fire

Выпуск журнала: Т. 7, 11

Номера страниц: 385

ISSN журнала: 25716255

Издатель: MDPI AG

Персоны

  • Zhuikov Andrey (Polytechnic School, Siberian Federal University, 79, Svobodny Avenue, Krasnoyarsk 660041, Russia)
  • Pyanykh Tatyana (Polytechnic School, Siberian Federal University, 79, Svobodny Avenue, Krasnoyarsk 660041, Russia)
  • Grishina Irina (Polytechnic School, Siberian Federal University, 79, Svobodny Avenue, Krasnoyarsk 660041, Russia)
  • Chicherin Stanislav (Brussels Institute for Thermal-Fluid Systems and Clean Energy (BRITE), Vrije Universiteit Brussel (VUB) and Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium)
  • Zhuikova Yana (Research School of High-Energy Physics, National Research Tomsk Polytechnic University, 30, Lenin Avenue, Tomsk 634050, Russia)

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