Open AccessOptimal microwave heating of biochar containing iron ore pellets
Author(s) -
Anton P. Anzulevich,
Д. А. Калганов,
Svetla. Anzulevich,
Igor V. Bychkov,
Zhiwei Peng
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1461/1/012007
Subject(s) - biochar , pellets , pellet , materials science , microwave , composite number , permittivity , iron ore , carbon fibers , permeability (electromagnetism) , microwave heating , metallurgy , composite material , pyrolysis , chemical engineering , dielectric , chemistry , optoelectronics , biochemistry , physics , membrane , engineering , quantum mechanics
Process of microwave heating of a composite material consisting of a mixture of iron oxides (Fe 2 O 3 / Fe 3 O 4 ), a binder (bentonit), and a carbon-containing powder (biochar) was studied theoretically and experimentally. The values of complex permittivity and permeability of the samples under study were found according to effective medium approximation and enhanced Bruggeman expression in particular. Spatial distribution of temperature in the pellet of composite material was obtained when heated by an electromagnetic field with a frequency of 2.45 GHz, as well as the time dependencies of sample surface temperature.