Increasing the efficiency of yield of combustible fraction of pyrolysis liquid from plant raw materials
- Authors: Sotnikov V.G.1, Safin R.G.1, Zagirov A.N.1, Akhmetova D.A.1
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Affiliations:
- Kazan National Research Technological University
- Issue: Vol 92, No 4 (2025)
- Pages: 326-335
- Section: Environmentally friendly technologies and equipment
- URL: https://medbiosci.ru/0321-4443/article/view/362616
- DOI: https://doi.org/10.17816/0321-4443-636645
- EDN: https://elibrary.ru/XLEBYR
- ID: 362616
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Abstract
BACKGROUND: Today, the use of technologies related to the production and use of renewable energy (bioenergy) is gaining popularity in the energy industry. The use of bioenergy is due to the gradual depletion of fossil resources on which the fuel and energy industry relies. Bioenergy is based on the production of energy from biofuels. At the moment, there is an active development of technologies for the production and expansion of the range of application of various types of biofuels in bioenergy.
AIM: Consideration of the possibility of increasing the efficiency of the yield of the combustible fraction from liquid products of slow pyrolysis of plant materials used in the production of biofuels.
METHODS: The study was conducted experimentally in two stages on the experimental installations for the pyrolysis of plant materials and the separation of pyrolysis liquid shown in the diagrams. The first stage consisted of the process of obtaining liquid products of slow pyrolysis of plant materials. The essence of the second stage consisted of separating the liquid products obtained at the first stage into individual fractions or components in order to identify areas of their application. After each stage, the chemical composition of the obtained products was analyzed with a liquid chromatograph.
RESULTS: The results of studies on obtaining pyrolysis liquid and separating liquid pyrolysis products into separate distillate fractions are described. As a result of the studies, liquid pyrolysis products were obtained from: pine chips, spruce chips, corn cobs and plum pits, which were separated into a liquid and resinous fraction. Both fractions were analyzed for combustion and it was found that the liquid fraction has flammable properties.
CONCLUSION: The use of a two-condenser system increased the efficiency of liquid slow pyrolysis products by 19% due to the additional recovery of combustible components. This additional recovery increased the proportion of furans, ketones, and esters in the combustible fraction. The combustible fraction, consisting of furans, ketones, esters, aldehydes, alcohols, and anhydrous sugars, exhibits flammable properties and can be assumed to be suitable for biofuel production.
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##article.viewOnOriginalSite##About the authors
Viktor G. Sotnikov
Kazan National Research Technological University
Email: vcvcvc12345678@gmail.com
ORCID iD: 0000-0002-6202-5487
SPIN-code: 1064-0539
Assistant professor of the Wood Processing Department
Russian Federation, KazanRushan G. Safin
Kazan National Research Technological University
Email: safin@kstu.ru
ORCID iD: 0000-0002-5790-4532
SPIN-code: 9071-4441
Dr. Sci. (Engineering), professor, Head of the Wood Processing Department
Russian Federation, KazanAidar N. Zagirov
Kazan National Research Technological University
Author for correspondence.
Email: aidarzagirov98@mail.ru
ORCID iD: 0000-0001-9804-4236
SPIN-code: 9949-8030
Postgraduate of the Wood Processing Department
Russian Federation, KazanDina A. Akhmetova
Kazan National Research Technological University
Email: pdm_d@list.ru
ORCID iD: 0009-0008-4722-4542
SPIN-code: 7782-0880
Cand. Sci. (Engineering), Assistant professor of the Wood Processing Department
Russian Federation, KazanReferences
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