Justification of the Energy Use of Cedar Husk Waste as an Environmentally Friendly Additive for Co-Combustion with Coal

Yankovsky Stanislav, Tolokol’nikov Anton, Berezikov Nikolay and Gubin Vladimir
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Yankovsky Stanislav: The Butakov Research Center, National Research Tomsk Polytechnic University, 30 Lenin Ave., Main Building, Office 127, 634050 Tomsk, Russia
Tolokol’nikov Anton: The Butakov Research Center, National Research Tomsk Polytechnic University, 30 Lenin Ave., Main Building, Office 127, 634050 Tomsk, Russia
Berezikov Nikolay: The Butakov Research Center, National Research Tomsk Polytechnic University, 30 Lenin Ave., Main Building, Office 127, 634050 Tomsk, Russia
Gubin Vladimir: The Butakov Research Center, National Research Tomsk Polytechnic University, 30 Lenin Ave., Main Building, Office 127, 634050 Tomsk, Russia

Energies, 2021, vol. 14, issue 21, 1-11

Abstract: In this paper, the properties of ignition of mixed fuel pellets formed on the basis of fairly typical energy coal and wood industry waste in the form of cedar husks are experimentally established. The technical characteristics of the initial fuel components and the mixtures based on them, the ignition delay times for different mass concentrations of biomass in coal, and the composition of flue gases formed during the thermal decomposition of these mixed fuels and their base components were determined. Pellets of mixed fuels were made by a hydraulic press. The experiments were performed in an air environment at temperatures from 600 °C to 800 °C. Recording of the processes of pellet ignition and combustion was carried out using a high-speed video camera with an image format of 1024 × 1024 pixels, and a frame rate up to 500 frames per second. The analysis of the flue gas composition was performed using a Test-1 factory gas analyzer (BONER Co.). It was found that the increase in the share of biomass up to 50% in the mixed fuel led to a significant reduction in the ignition delay time to less than 1 s and the sequestration of sulfur oxide emissions by 37.6% and of nitrogen oxides by 3.8% in the studied granular mixed fuels.

Keywords: coal; biomass; recycling; mixed fuel; pellets; thermal decomposition; combustion; reduction of harmful emissions (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: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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