Journals →  Gornyi Zhurnal →  2022 →  #5 →  Back

ArticleName Processing of sunflower hulls and peat with production of melanin and composite fuel briquettes
DOI 10.17580/gzh.2022.05.04
ArticleAuthor Prutenskaya E. A., Misnikov O. S., Sulman M. G., Kosivtsov Yu. Yu.

Tver State Technical University, Tver, Russia:

E. A. Prutenskaya, Associate Professor, Candidate of Biological Sciences,
O. S. Misnikov, Dean of the Faculty of Nature Management and Ecological Engineering, Doctor of Engineering Sciences
M. G. Sulman, Head of Department, Professor, Doctor of Chemical Sciences
Yu. Yu. Kosivtsov, Dean of the Faculty of Chemistry and Technology, Professor, Doctor of Engineering Sciences


The article discusses production of composite peat fuel briquettes from butter-making waste represented by sunflower hulls. The experiments prove manufacturability of briquettes at the quality of the standard first-grade peat fuel briquettes. The specific heats of sunflower hulls and composite briquettes are determined. Furthermore, the experimental tests show that ultrasonic treatment used to extract melanin from sunflower hulls changes the chemical composition of the raw material and its reactivity worth, as well as promotes an increase in the specific heat of sunflower hulls from 17.5 to 19.7 MJ/kg. The ultrasonic treatment degrades lignified tissue matrix of sunflower hulls. The Fouriertransform infrared spectra of lignin from sunflower hulls are analyzed before and after the ultrasonic treatment. Despite the strong resemblance, the spectra display differences in the structure of lignin, as well as in the ranges of fluctuation of methyl and methylene groups. It is shown that the yield of melanin from sunflower hulls in the optimized extraction conditions in the ultrasonic field (temperature 60 0С, extraction time 25 min, density 414 W/cm2, sunflower hulls : extractant ratio 1 : 40) totals 7.6% of the biomass of sunflower hulls. The size of melanin particles is 457–465 nm. The accomplished research proves feasibility of the integrated approach to processing of sunflower hulls to produce bio-active melanin and composite peat fuel briquettes.
The study was supported by the Russian Science Foundation, Project No. 20-69-47084.

keywords Sunflower hulls, melanin, ultrasound, peat, fuel, heat value, briquettes

1. Akacem M., Miller D. D., Faulkner J. L. Oil, Institutions and Sustainability in MENA. A Radical Approach through the Empowerment of Citizens. Cham : Springer, 2020. 235 p.
2. Kotov A. V. Assessing the Efficiency of Regional Policy Tools. Ekonomika regiona. 2020. Vol. 16, No. 2. pp. 352–362.
3. Buravch uk N. I. Fuel c omposites of finely-granular carbon-containing technogenic raw material. Innovatics and expertise : Collection of scientific papers. Moscow : NII RINKTsE, 2017. No. 2(20). pp. 191–203.

4. Shakhmatov K. L. Specifics of manufacturing fuel briquettes and Phragmites Australis reed biomass granules at mined-out peat deposit in the Chuvitsino–Kalininsky district of the Tver Region. Trudy Instorfa. 2014. No. 10(63). pp. 29–33.
5. Alpeeva E. A., Goncharov M. S. Peat industry in Russia: problems and prospects. Vestnik Kurskoy gosudarstvennoy selskokhozyaystvennoy akademii. 2021. No. 3. pp. 121–130.
6. Tsybulenko P. V., Onika S. G. Manufacture of composite fuel peat briquettes using flax processing waste. Gornaya mekhanika i mashinostroenie. 2020. No. 2. pp. 16–20.
7. Timofeeva S. S., Islamova S. I., Ermolaev D. V. Composite fuel based on peat and wood waste. Trudy Akademenergo. 2019. No. 4(57). pp. 122–132.
8. Aleksandrov G. A., Skvortsova G. G., Vyakina I. V., Yablonev A. L. Peat mining industry in Russia: regeneration and the development prospects. Natsionalnye interesy: prioritety i bezopasnost. 2016. Vol. 12, No. 8(341). pp. 32–43.
9. Piralishvili Sh. A., Birfeld A. A., Stepanov E. G., Mikhaylov A. S., Spesivtseva N. S. Experimental investigation of the effect of production factors on the properties of peat briquettes. Journal of Engineering Physics and Thermophysics. 2016. Vol. 89, No. 2. pp. 339–345.
10. Krumins J., Klavins M., Kalnina L. Fen peat in environmentally friendl y technologies. Energy Procedia. 2018. Vol. 147. pp. 114–120.
11. Bustan A., Arsyad M. Are Peat and Sawdust Truly Improve Quality of Briquettes as Fuel Alternative? Journal of Sustainable Development. 2017. Vol. 10, No. 5. pp. 61–70.
12. Gracheva N. V., Zheltobryukhov V. F. Sorption Properties of Sunflower Husk Melanins. Pharmaceutical Chemistry Journal. 2019. Vol. 53, No. 4. pp. 337–341.
13. Gharibyan Ts. S., Vorobeva G. I., Butorova I. A., Akopyan V. B., Bambura M. V. et al. Comparative analysis of pre-sowing seed stimulation. Agrarnaya nauka. 2017. No. 9-10. pp. 33–35.
14. Prutenskaya E. A., Sulman M. G., Vasilev A. S. et al. Method for producing melanin substances from sunflower husks. Patent RF, No. 2665166. Applied: 05.12.2017. Published: 28.08.2018. Bulletin No. 25.
15. Obolenskaya A. V., Elnitskaya Z. P., Le onovich A. A. Laboratory studies into chemistry of wood and cellulose. Moscow : Ekologiya, 1991. 320 p.
16. Antonova G. F., Bazhenov A. V., Varaksina T. N., Konovalov N. T., Konovalova N. N. et al. Ultrasound effect on oak timber lignin. Khimiya rastitelnogo syrya. 2006. No. 3. pp. 5–16.
17. Dolgonosov B. M., Gubernatorova T. N. Kinetics and mechanisms of organic substance destruction in aqueous medium. Moscow : Krasand, 2011. 208 p.
18. Gordeeva I. M., Pukhova O. V., Shakhmatov K. L. Influence of quality indicators of raw peat on physicomechanical properties of briquettes. Trudy Instorfa. 2019. No. 19(72). pp. 36–39.

Language of full-text russian
Full content Buy