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Torrefaction of composite biofuel in the atmosphere of its own gaseous environment

Mykhailyk Viacheslav, Korinchevska Tetіana, Dakhnenko Valery

Journal of New Technologies in Environmental Science

2022

Vol. 6, nr 2

75--82

Torrefied pellets of composite fuel made from a mixture (1:1) of pine wood with lowland peat and pine wood were studied by TGA and DTA methods. Torrefaction was carried out at atmospheric pressure in a gaseous environment, which was formed in a limited space during the partial thermal decomposition of organic substances of fuel. An increase in the torrefaction temperature from 250°C to 290°C leads to an increase in the degree and temperature range of fuel decomposition. The presence of wood in the composite fuel has a positive effect on the results of torrefaction: the heat of thermal decomposition increases, ash content and hydrophilicity decrease. The method of torrefaction without the use of inert gases has shown its effectiveness and the possibility of application in the production of torrefied fuel.