Pyrolysis of Pine and Beech Wood Samples under Isothermal Experimental Conditions. the Determination of Kinetic Triplets
Abstract
The pyrolysis process of pine and beech wood samples was investigated by the isothermal thermogravimetric technique, at five different operating temperatures, in nitrogen flowing stream. It was found that the isothermal pyrolysis process of wood samples can be described by the three-dimensional diffusion mechanisms, with different reaction geometry (Janders type for pine, and Ginstling-Brounsteins type for beech). The evaluated models for both processes represent the global one-step reaction mechanisms. Some differences in the values of the kinetic parameters and diffusion geometry of the volatile products were established, probably resulting from sensitive alterations of the structure and the chemical composition of the investigated wood samples, occurring during the pyrolysis process.
Keywords:
wood / pyrolysis / kinetics / diffusion mechanism / apparent activation energySource:
Cellulose Chemistry and Technology, 2013, 47, 9-10, 681-697Funding / projects:
- Dynamics of nonlinear physicochemical and biochemical systems with modeling and predicting of their behavior under nonequilibrium conditions (RS-MESTD-Basic Research (BR or ON)-172015)
- Advanced technologies for monitoring and environmental protection from chemical pollutants and radiation burden (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
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Institution/Community
VinčaTY - JOUR AU - Janković, Bojan Ž. AU - Janković, Marija M. PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5915 AB - The pyrolysis process of pine and beech wood samples was investigated by the isothermal thermogravimetric technique, at five different operating temperatures, in nitrogen flowing stream. It was found that the isothermal pyrolysis process of wood samples can be described by the three-dimensional diffusion mechanisms, with different reaction geometry (Janders type for pine, and Ginstling-Brounsteins type for beech). The evaluated models for both processes represent the global one-step reaction mechanisms. Some differences in the values of the kinetic parameters and diffusion geometry of the volatile products were established, probably resulting from sensitive alterations of the structure and the chemical composition of the investigated wood samples, occurring during the pyrolysis process. T2 - Cellulose Chemistry and Technology T1 - Pyrolysis of Pine and Beech Wood Samples under Isothermal Experimental Conditions. the Determination of Kinetic Triplets VL - 47 IS - 9-10 SP - 681 EP - 697 UR - https://hdl.handle.net/21.15107/rcub_vinar_5915 ER -
@article{ author = "Janković, Bojan Ž. and Janković, Marija M.", year = "2013", abstract = "The pyrolysis process of pine and beech wood samples was investigated by the isothermal thermogravimetric technique, at five different operating temperatures, in nitrogen flowing stream. It was found that the isothermal pyrolysis process of wood samples can be described by the three-dimensional diffusion mechanisms, with different reaction geometry (Janders type for pine, and Ginstling-Brounsteins type for beech). The evaluated models for both processes represent the global one-step reaction mechanisms. Some differences in the values of the kinetic parameters and diffusion geometry of the volatile products were established, probably resulting from sensitive alterations of the structure and the chemical composition of the investigated wood samples, occurring during the pyrolysis process.", journal = "Cellulose Chemistry and Technology", title = "Pyrolysis of Pine and Beech Wood Samples under Isothermal Experimental Conditions. the Determination of Kinetic Triplets", volume = "47", number = "9-10", pages = "681-697", url = "https://hdl.handle.net/21.15107/rcub_vinar_5915" }
Janković, B. Ž.,& Janković, M. M.. (2013). Pyrolysis of Pine and Beech Wood Samples under Isothermal Experimental Conditions. the Determination of Kinetic Triplets. in Cellulose Chemistry and Technology, 47(9-10), 681-697. https://hdl.handle.net/21.15107/rcub_vinar_5915
Janković BŽ, Janković MM. Pyrolysis of Pine and Beech Wood Samples under Isothermal Experimental Conditions. the Determination of Kinetic Triplets. in Cellulose Chemistry and Technology. 2013;47(9-10):681-697. https://hdl.handle.net/21.15107/rcub_vinar_5915 .
Janković, Bojan Ž., Janković, Marija M., "Pyrolysis of Pine and Beech Wood Samples under Isothermal Experimental Conditions. the Determination of Kinetic Triplets" in Cellulose Chemistry and Technology, 47, no. 9-10 (2013):681-697, https://hdl.handle.net/21.15107/rcub_vinar_5915 .