Geodesic
Green approach to production of porous char adsorbents via oxidative carbonization in fluidized catalyst bed
Nanosistemy: fizika, himiâ, matematika, Tome 15 (2024) no. 2, pp. 285-299 Cet article a éte moissonné depuis la source Math-Net.Ru

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A green and energy-efficient technique for production of porous carbon-mineral chars from agricultural wastes (rice husk, wheat bran) and sedimentary carbonaceous feedstocks (high-ash peat, coal) was developed. It is based on partial combustion in fluidized bed of a deep oxidation catalyst at low temperatures (465 – 600$^\circ$C). This technique yields porous chars with an elevated mineral content that depends on a feedstock used, and gaseous products of complete oxidation. It was found that the obtained chars have developed porosity with BET specific surface area of ca. 50 – 170 m$^2$g$^{-1}$, pore volume of 0.05 – 0.17 ml $\cdot$ g$^{-1}$, and ash content of 16 – 79 wt.%. They were additionally characterized by TGA and FTIR. Their testing as adsorbents for heavy metal ions (by the example of Cu$^{2+}$) and organic dyes (by the example of methyl green) revealed that their adsorption capacities are comparable to those of chars produced by the conventional pyrolytic approaches.
Keywords: biochar, rice husk, bran, fluidized catalyst bed
Mots-clés : biomass, composite. 
@article{NANO_2024_15_2_a14,
     author = {Petr M. Yeletsky and Nikolay A. Yazykov and Yury V. Dubinin and Maksim M. Borodaevskiy and Svetlana A. Selishcheva and Vadim A. Yakovlev},
     title = {Green approach to production of porous char adsorbents via oxidative carbonization in fluidized catalyst bed},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {285--299},
     year = {2024},
     volume = {15},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2024_15_2_a14/}
}
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%A Nikolay A. Yazykov
%A Yury V. Dubinin
%A Maksim M. Borodaevskiy
%A Svetlana A. Selishcheva
%A Vadim A. Yakovlev
%T Green approach to production of porous char adsorbents via oxidative carbonization in fluidized catalyst bed
%J Nanosistemy: fizika, himiâ, matematika
%D 2024
%P 285-299
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Petr M. Yeletsky; Nikolay A. Yazykov; Yury V. Dubinin; Maksim M. Borodaevskiy; Svetlana A. Selishcheva; Vadim A. Yakovlev. Green approach to production of porous char adsorbents via oxidative carbonization in fluidized catalyst bed. Nanosistemy: fizika, himiâ, matematika, Tome 15 (2024) no. 2, pp. 285-299. http://geodesic.mathdoc.fr/item/NANO_2024_15_2_a14/