Advanced Fuel Based on Semi-Coke and Cedarwood: Kinetic Characteristics and Synergetic Effects

Andrey Zhuikov (), Lily Irtyugo, Alexander Samoilo, Yana Zhuikova, Irina Grishina, Tatyana Pyanykh and Stanislav Chicherin
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Andrey Zhuikov: Polytechnic School, Siberian Federal University, 79, Svobodny Avenue, Krasnoyarsk 660041, Russia
Lily Irtyugo: Polytechnic School, Siberian Federal University, 79, Svobodny Avenue, Krasnoyarsk 660041, Russia
Alexander Samoilo: Polytechnic School, Siberian Federal University, 79, Svobodny Avenue, Krasnoyarsk 660041, Russia
Yana Zhuikova: Research School of High-Energy Physics, National Research Tomsk Polytechnic University, 30, Lenin Avenue, Tomsk 634050, Russia
Irina Grishina: Polytechnic School, Siberian Federal University, 79, Svobodny Avenue, Krasnoyarsk 660041, Russia
Tatyana Pyanykh: Polytechnic School, Siberian Federal University, 79, Svobodny Avenue, Krasnoyarsk 660041, Russia
Stanislav Chicherin: Thermo and Fluid Dynamics (FLOW), Faculty of Engineering, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels, Belgium

Energies, 2024, vol. 17, issue 19, 1-22

Abstract: This paper presents the results of analytical studies of the combustion process of semi-coke, cedar sawdust, and their mixtures using the TGA method at three different heating rates with the determination of the main characteristics of heating: the presence of synergetic interaction between the components of the mixture affecting the maximum rate of combustion and kinetic parameters. Calculations of activation energy and pre-exponential multiplier of the Arrhenius equation by the Friedman and Ozawa–Flynn–Wall priori methods for initial combustibles and their mixtures have been carried out. Semi-coke was obtained by thermal treatment of brown coal at 700–900 °C to remove volatile substances, which makes it more environmentally friendly than the original coal. Semi-coke has a higher heat of combustion than biomass, and biomass has a higher reactivity than semi-coke. The combustion process of biomass occurs in a lower temperature range, and adding biomass to semi-coke shifts the combustion process to a lower temperature range than such for biomass. Adding at least 50% of biomass to semi-coke increases the combustion index by at least 1.1 times. Regardless of the heating rate of mixtures, synergetic interaction between the mixture’s components increases the maximum combustion rate of coke residue by 20%.

Keywords: semi-coke; biomass; cedar sawdust; co-combustion; synergistic effects; TGA; kinetic analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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