Granulated biofuels combustion efficiency

• Published in: IOP Conference Series: Earth and Environmental Science
• Main Authors: Lyubov, V K, Popova, E I, Popov, A N
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: IOP Publishing 2019
• Subjects: Arctic; Onega
• Online Access: http://dx.doi.org/10.1088/1755-1315/288/1/012104; https://iopscience.iop.org/article/10.1088/1755-1315/288/1/012104/pdf; https://iopscience.iop.org/article/10.1088/1755-1315/288/1/012104

Abstract The article presents the results of experimental studies of the thermal and ecological performance of the Firematic 60 boiler manufactured by Herz Energietechnik GmbH. Wood pellets with diameter of 6 and 8 mm and biochar from hydrolytic lignin were used for combustion. The components of the boiler’s heat balance and the emission of harmful substances were determined during the burning of the biofuels. In the course of experimental work high energy and environmental performance of the Firematic 60 boiler was reached while working on granulated fuel which gives a reason to recommend this boiler for heat supply of low-rise buildings in the conditions of the Arctic region. Organized in Onega City production of biocahar from hydrolytic lignin allowed to obtain high-quality fuel from biomass that has remained in dumps for 40-60 years. Experimental data on the change in the apparent and bulk density, mechanical durability of wood pellets thermally pretreated for 90 minutes in an electric furnace without oxygen at temperatures of 200, 250, 275 and 300 °C was obtained. It has shown that with an increase in the temperature of wood pellet torrefaction all these parameters decrease. The influence of the torrefaction process parameters of the hydrolytic lignin on the sorption properties of the biochar has been studied; sorption properties have been compared for the granules produced from the hydrolytic lignin and coniferous wood.