Pyrolytic Behavior and Kinetic Analysis of Wheat Straw and Lignocellulosic Biomass Model Compound

Abstract:

From a carbon cycle perspective, the thermochemical conversion of lignocellulosic biomass is inherently carbon neutral. Pyrolysis of biomass for energy supplying, such as bio-oil and bio-char, has been attracted much attention worldwide. Successful understanding the fundamental issues about the pyrolysis, including pyrolytic behavior and kinetic analysis of lignocellulosic biomass model compounds and real biomass, is essential for the further understanding and optimizing the pyrolysis process. In this paper, pyrolytic behavior of a typical lignocellulosic agricultural residue (wheat straw) and model compounds (cellulose) were measured through thermogravimetric analysis with various heating rates (10, 20, 40 °C·min^-1) under nitrogen atmosphere. The results indicated that the interval of the weight loss for both wheat straw and cellulose moved upwards with the increment of heating rates. The maximum decomposition rates of cellulose were higher than those of wheat straw, and the temperature of maximum decomposition rates increased with the heating rates. Values of activation energy were solved through iso-conversional method. And the average values of activation energy for wheat straw and cellulose were 146.89 kJ·mol^-1 and 134.56 kJ·mol^-1 calculated from Flynn-Wall-Ozawa method, 144.05 kJ·mol^-1 and 130.91 kJ·mol^-1 calculated from Kissinger-Akahira-Sunose method, respectively.

• Periodical: Advanced Materials Research (Volumes 860-863)
• Pages: 550-554
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.860-863.550
• Online since: December 2013
• Authors: Zhi Qiang Wu, Shu Zhong Wang*, Jun Zhao, Lin Chen, Hai Yu Meng
• Keywords: Kinetic Analysis, Model Compound, Pyrolytic Behavior, Wheat Straw

References

[1] R. Habibi, J. Kopyscinski, M. S. Masnadi, J. Lam, J. R. Grace, C. A. Mims, et al., Co-gasification of Biomass and Non-biomass Feedstocks: Synergistic and Inhibition Effects of Switchgrass Mixed with Sub-bituminous Coal and Fluid Coke During CO2 Gasification, Energy & Fuels, vol. 27, pp.494-500, (2013).

DOI: 10.1021/ef301567h

[2] N. E. Administration. (2012). The twelfth five-year plan for bioenergy development of the People's Republic of China. Available: http: /www. gov. cn/zwgk/2012-12/28/content_2301176. htm.

[3] A. O. Aboyade, M. Carrier, E. L. Meyer, H. Knoetze, and J. F. Görgens, Slow and pressurized co-pyrolysis of coal and agricultural residues, Energy Conversion and Management, vol. 65, pp.198-207, 1/ (2013).

DOI: 10.1016/j.enconman.2012.08.006

[4] A. O. Aboyade, J. F. Görgens, M. Carrier, E. L. Meyer, and J. H. Knoetze, Thermogravimetric study of the pyrolysis characteristics and kinetics of coal blends with corn and sugarcane residues, Fuel Processing Technology, vol. 106, pp.310-320, 2/ (2013).

DOI: 10.1016/j.fuproc.2012.08.014

[5] S. Yuan, Z. H. Dai, Z. J. Zhou, X. L. Chen, G. S. Yu, and F. C. Wang, Rapid co-pyrolysis of rice straw and a bituminous coal in a high-frequency furnace and gasification of the residual char, Bioresour Technol, vol. 109, pp.188-197, Apr (2012).

DOI: 10.1016/j.biortech.2012.01.019

[6] H. Haykiri-Acma and S. Yaman, Interaction between biomass and different rank coals during co-pyrolysis, Renewable Energy, vol. 35, pp.288-292, (2010).

DOI: 10.1016/j.renene.2009.08.001

[7] Ö. Onay, E. Bayram, and Ö. M. Koçkar, Copyrolysis of Seyitömer−Lignite and Safflower Seed:  Influence of the Blending Ratio and Pyrolysis Temperature on Product Yields and Oil Characterization, Energy & Fuels, vol. 21, pp.3049-3056, 2007/09/01 (2007).

DOI: 10.1021/ef700230s

[8] H. Haykiri-Acma and S. Yaman, Synergy in devolatilization characteristics of lignite and hazelnut shell during co-pyrolysis, Fuel, vol. 86, pp.373-380, Feb (2007).

DOI: 10.1016/j.fuel.2006.07.005

[9] J. M. Jones, M. Kubacki, K. Kubica, A. B. Ross, and A. Williams, Devolatilisation characteristics of coal and biomass blends, Journal of Analytical and Applied Pyrolysis, vol. 74, pp.502-511, (2005).

DOI: 10.1016/j.jaap.2004.11.018

[10] H. B. Vuthaluru, Investigations into the pyrolytic behaviour of coal/biomass blends using thermogravimetric analysis, Bioresour Technol, vol. 92, pp.187-195, (2004).

DOI: 10.1016/j.biortech.2017.08.105

[11] C. Meesri and B. Moghtaderi, Lack of synergetic effects in the pyrolytic characteristics of woody biomass/coal blends under low and high heating rate regimes, Biomass and Bioenergy, vol. 23, pp.55-66, (2002).

DOI: 10.1016/s0961-9534(02)00034-x

[12] E. Kastanaki, D. Vamvuka, P. Grammelis, and E. Kakaras, Thermogravimetric studies of the behavior of lignite–biomass blends during devolatilization, Fuel Processing Technology, vol. 77–78, pp.159-166, (2002).

DOI: 10.1016/s0378-3820(02)00049-8

[13] Y. G. Pan, E. Velo, and L. Puigjaner, Pyrolysis of blends of biomass with poor coals, Fuel, vol. 75, pp.412-418, (1996).

DOI: 10.1016/0016-2361(95)00275-8

[14] E. Biagini, F. Lippi, L. Petarca, and L. Tognotti, Devolatilization rate of biomasses and coal-biomass blends: an experimental investigation, Fuel, vol. 81, pp.1041-1050, May (2002).

DOI: 10.1016/s0016-2361(01)00204-6

[15] D. Vamvuka, N. Pasadakis, and E. Kastanaki, Kinetic modeling of coal/agricultural by-product blends, Energy & Fuels, vol. 17, pp.549-558, May-Jun (2003).

DOI: 10.1021/ef020179u

[16] C. X. Chen, X. Q. Ma, and Y. He, Co-pyrolysis characteristics of microalgae Chlorella vulgaris and coal through TGA, Bioresour Technol, vol. 117, pp.264-273, Aug (2012).

DOI: 10.1016/j.biortech.2012.04.077

[17] Z. Q. Wu, S. Wang, J. Zhao, L. Chen, and H. Meng, A Kinetic Study of Co-Pyrolysis of Coal and Spent Mushroom Compost (SMC), Advanced Materials Research, vol. 781-784, pp.2406-2410, (2013).

DOI: 10.4028/www.scientific.net/amr.781-784.2406

[18] M. Garcı̀a-Pèrez, A. Chaala, J. Yang, and C. Roy, Co-pyrolysis of sugarcane bagasse with petroleum residue. Part I: thermogravimetric analysis, Fuel, vol. 80, pp.1245-1258, (2001).

DOI: 10.1016/s0016-2361(00)00215-5