International Scientific Journal


The treatment of protein waste in the leather industry also includes transformation into biogas through anaerobic digestion. A pilot plant producing biogas with a 45-60% CH4 concentration was designed for this purpose. Starting from primary experimental tests in a Bunsen burner, the paper presents the theoretical aspects of choosing the best combustion technique for this peculiar gaseous fuel in order to calculate the combustion velocity and checking the conditions for the flame stability. The applicability of the kinetic combustion (with pre-mix) will be attempted, because low combustion rates for this fuel also involve low air velocities. Diffusive combustion seems to not be affected by this impediment, as there is always an equality condition of flame velocity with burning speed, so a theoretical spot of a stable flame. After selecting the best combustion technique, a pilot burner will be designed and tested.
PAPER REVISED: 2018-10-02
PAPER ACCEPTED: 2018-11-16
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THERMAL SCIENCE YEAR 2018, VOLUME 22, ISSUE Supplement 5, PAGES [S1349 - S1357]
  1. *** Green Tannery - Methods for Energetic Recovery of Biodegradable Wastes, project ID PN-II-PT-PCCA-2013-4-1017, UPB 2013-2017
  2. Sutanto S., et al., CO2 Removal from Biogas with Supported Amine Sorbents: First Technical Evalua-tion Based on Experimental Data, Separation and Purification Technology, 184 (2017), Aug., pp. 12-25
  3. Ward, A. J., et al., Optimisation of the Anaerobic Digestion of Agricultural Resources, Bioresource Technology, 99 (2008), 17, pp. 7928-7940
  4. Appels, L., et al., Principles and Potential of Anaerobic Digestion of Waste-Activated Sludge, Progress in Energy and Combustion Sciences, 34 (2008), 6, pp. 755-781
  5. Leclerc, C. A., Short Contact Time Catalytic Partial Oxidation of Biogas - A Comprehensive Study on CO2 and N2 Dilution, Biomass and Bioenergy, 63 (2014), Apr., pp. 58-63
  6. Wang, W., Zhao, Y., Quantum Instanton Calculation of Rate Constant for CH4 + OH → CH3 + H2O Re-action: Torsional Anharmonicity and Kinetic Isotope Effect, The Journal of Chemical Physics, 137 (2012), 21, ID 214306
  7. Joseph, T., et al., A New Potential Energy Surface for the CH3+H2↔CH4+H Reaction: Calibration and Calculations of Rate Constants and Kinetic Isotope Effects by Variational Transition State Theory and Semiclassical Tunneling Calculations, The Journal of Chemical Physics, 87 (1998), ID 7036
  8. Du, H., Hessler, J., Rate Coefficient for the Reaction H + O2 → OH + O: Results at High Temperatures, 2000 to 5300 K, The Journal of Chemical Physics, 96 (1998), 2, 1077
  9. Masunov, A. E., et al., Chemical Reaction CO + OH → CO2 + H Autocatalyzed by Carbon Dioxide: Quantum Chemical Study of the Potential Energy Surfaces, J. Phys. Chem. A, 120 (2016), 30, pp. 6023-6028
  10. Angeladiki, I., Ahring, B. K., Anaerobic Thermophilic Digestion of Manure at Different Ammonia Loads - Effect of Temperature, Water Research, 28 (1994), 3, pp. 727-731
  11. Monoli, B., et al., Anaerobic Digestion of High-Nitrogen by Products in a Multiphase Process for Biogas Production, Chemical Engineering Transactions, 37 (2014), June, pp. 271-276
  12. Yu, Liang, et al., Two-Stage Anaerobic Digestion Systems where in One of the Stages Comprises a Two-Phase System, Patent Number: US 09567611, Patent Assignee: Washington State University, Offi-cial Gazette of the United States Patent and Trademark Office Patents, Pullman, Wash., USA, 2017
  13. Panoiu, N., et al., Modernization of Combustion Installations for Industrial Boilers (in Romainan), Editura Tehnica, Bucuresti, 1993
  14. Stambuleanu, A., Industrial Flame (in Romanian), Editura Tehnica, Bucuresti, 1971
  15. Mavrodin, M. E., Lazaroiu, Gh., Experimental Research on Combustion of Biogas Obtained through Anaerobic Fermentation of Tanneries Wastes", U. P. B. Scientific Bulletin, Series B, 80, (2018), 3, pp. 1454-2331
  16. Craciun, M., et al., Anaerobic Digestion of Tanneries Wastes, Proceedings, 5th International Conference on Thermal Equipment, Renewable Energy and Rural Development TE-RE-RD 2016, Golden Sands, Bulgaria, pp. 459-464

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