Study of the Separation of Pyrolysis Gases at Different Moisture Content of Vegetable Raw Materials

• Published in: Theoretical foundations of chemical engineering Vol. 58; no. 3; pp. 818 - 822
• Main Authors: Safin, R. G., Sotnikov, V. G., Zagirov, A. N.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.06.2024; Springer Nature B.V
• Subjects: Biodiesel fuels; Biofuels; Chemical engineering; Chemistry; Chemistry and Materials Science; Industrial Chemistry/Chemical Engineering; Moisture content; Petroleum products; Pyrolysis; Raw materials; Separation; Thermal decomposition; Wood chips; condensation of pyrolysis gases; pyrolysis fuel; vegetable waste; thermal processing; resource saving
• ISSN: 0040-5795; 1608-3431
• DOI: 10.1134/S0040579524601614

Today, the issue of recycling organic waste is very relevant. Unclaimed raw materials can be used to produce useful household products, such as biofuels, which can become a replacement for fuels derived from petroleum products. The basic information on the processing of organic waste into pyrolysis fuel with different moisture content of raw materials by the method of thermal decomposition is considered. Experimental installations for pyrolysis and separation are presented. Experimental studies are carried out on the pyrolysis of pine wood chips with a moisture content of 20, 15, and 10%. The resulting pyrolysis liquid is subjected to a separation process to find out how the moisture content of the feedstock affects the yield of useful products used to produce biofuels. Based on the experiments, it is found that at high moisture content of the feedstock subject to pyrolysis, the total amount of outgoing liquid pyrolysis products will be greater due to the presence of water in them, and the lower the humidity, the lower the total volume. Based on the results of the experiments and the kinetic dependence of the specific mass of the condensed pyrolysis distillate on the moisture content of the feedstock, the histogram of the dependence of the yield of liquid pyrolysis products on moisture and the graph of the yield of the secondary separation fractions in the presence of moisture are constructed.