Analytical Model for Predicting the Heat Loss Effect on the Pyrolysis of Biomass Particles

doi:10.1016/S1004-9541(13)60577-7

Abstract

Abstract: This paper presents the combined influence of heat-loss and radiation on the pyrolysis of biomass particles by considering the structure of one-dimensional, laminar and steady state flame propagation in uniformly premixed wood particles. The assumed flame structure consists of a broad preheat-vaporization zone where the rate of gas-phase chemical reaction is small, a thin reaction zone composed of three regions: gas, tar and char combustion where convection and the vaporization rate of the fuel particles are small, and a broad convection zone. The analysis is performed in the asymptotic limit, where the value of the characteristic Zeldovich number is large and the equivalence ratio is larger than unity (i.e.Ψ≥1). The principal attention is made on the determination of a non-linear burning velocity correlation. Consequently, the impacts of radiation, heat loss and particle size as the determining factors on the flame temperature and burning velocity of biomass particles are declared in this research.

Key words: analytical model, heat loss, radiation, particle size, pyrolysis, flame temperature, burning velocity

摘要： This paper presents the combined influence of heat-loss and radiation on the pyrolysis of biomass particles by considering the structure of one-dimensional, laminar and steady state flame propagation in uniformly premixed wood particles. The assumed flame structure consists of a broad preheat-vaporization zone where the rate of gas-phase chemical reaction is small, a thin reaction zone composed of three regions: gas, tar and char combustion where convection and the vaporization rate of the fuel particles are small, and a broad convection zone. The analysis is performed in the asymptotic limit, where the value of the characteristic Zeldovich number is large and the equivalence ratio is larger than unity (i.e.Ψ≥1). The principal attention is made on the determination of a non-linear burning velocity correlation. Consequently, the impacts of radiation, heat loss and particle size as the determining factors on the flame temperature and burning velocity of biomass particles are declared in this research.

关键词: analytical model, heat loss, radiation, particle size, pyrolysis, flame temperature, burning velocity

Alireza Rahbari, Fatemeh Ebrahiminasab, Mehdi Bidabadi. Analytical Model for Predicting the Heat Loss Effect on the Pyrolysis of Biomass Particles[J]. Chin.J.Chem.Eng., 2013, 21(10): 1114-1120.

Alireza Rahbari, Fatemeh Ebrahiminasab, Mehdi Bidabadi. Analytical Model for Predicting the Heat Loss Effect on the Pyrolysis of Biomass Particles[J]. Chinese Journal of Chemical Engineering, 2013, 21(10): 1114-1120.

References

1 Serio, M.A., Kroo, E., Wójtowicz, M.A., “Biomass pyrolysis for distributed energy generation”, Prepr. Pap.-Am. Chem. Soc., Div. Fuel Chem., 48, 584-589 (2003).
2 Chen, Y.G., Charpeny, S., Jensen, A., Wojtowicz, M.A., Serio, M.A., “Modelling of biomass pyrolysis kinetics”, Symposium (International) on Combustion, 27 (1), 1327-1334 (1998).
3 Eckhoff, R.K., Dust Explosion in the Process Industries, Butterworth Heinemann, Oxford (1997).
4 Lee, D.H., Kwon, S., “Heat transfer and quenching analysis of combustion in a micro combustion vessel”, J. Micromech. Microeng., 12, 670-676 (2002).
5 Lee, D.H., Park, D.E., Yoon, E., Kwon, S., “A MEMS piston-cylinder device actuated by combustion”, ASME J. Heat Transf., 125, 487-493 (2003).
6 Daou, J., Matalon, M., “Influence of conductive heat-losses on the propagation of premixed flames in channels”, Combust. Flame, 128, 321-339 (2002).
7 Vican, J., Gajdeczko, B.F., Dryer, F.L., Milius, D.L., Aksay, I.A., Yetter, R.A., “Development of a microreactor as a thermal source for micro-electro-mechanical systems power generation”, Proc. Combust. Inst., 29, 909-916 (2002).
8 Hua, J., Wu, M., Kumar, K., “Numerical simulation of the combustion of hydrogen-air mixture in micro-scaled chambers. Part I: Fundamental study”, Chem. Eng. Sci., 60, 3497-3506 (2005).
9 Calle, S., Klaba, L., Thomas, D., Perrin, L., Dufaud, O., “Influence of the size distribution and concentration on wood dust explosion: Experiments and reaction modelling”, Powder Technol., 157, 144-148 (2005).
10 Cetin, E., Moghtaderi, B., Gupta, R., Wall, T.F., “Biomass gasification kinetics: Influence of pressure and char structure”, Combust. Sci. Technol., 177, 765-791 (2005).
11 Sutcu, H., “Pyrolysis by thermo gravimetric analysis of blends of peat with coals of different characteristics and biomass”, J. Chin. Inst. Chem. Eng., 38, 245-249 (2007).
12 Blasi, D., “Modelling chemical and physical process of wood and biomass pyrolysis”, Prog. Energy Combust., 34, 47-90 (2008).
13 Sadhukhan, A.K., Gupta, P., Saha, R.K., “Modelling and experimental studies on pyrolysis of biomass particles”, J. Anal. Appl. Pyrol., 81, 183-192 (2008).
14 Lam, K.L., Oyedun, A.O., Hui., C.W., “Experimental and modelling studies of biomass pyrolysis”, Chin. J. Chem. Eng., 20, 543-550 (2012).
15 Benkoussas, B., Consalvi, J.L., Porterie, B., Sardoy, N., Loraud, J.C., “Modelling thermal degradation of woody fuel particles”, Int. J. Therm. Sci., 46, 319-327 (2007).
16 Weng, W.G., Hasemi, Y., Fana, W.C., “Predicting the pyrolysis of wood considering char oxidation under different ambient oxygen concentrations”, Combust. Flame, 145, 723-729 (2006).
17 Oyedun, A.O., Lam, K.L., Hui., C.W., “Charcoal production via multistage pyrolysis ”, Chin. J. Chem. Eng., 20, 455-460 (2012).
18 Kong, X., Zhong, W., Du, W., Feng, Q., “Three stage equilibrium model for coal gasification in entrained flow gasifiers based on Aspen Plus”, Chin. J. Chem. Eng., 21, 79-84 (2013).
19 Dufour, A., Girods, P., Masson, E., Normand, S., Rogaume, Y., Zoulalian, A., “Comparison of two methods of measuring wood pyrolysis tar”, J. Chromatogr. A., 1164, 240-247 (2007).
20 Lu, H., Ip, E., Scott, J., Foster, P., Vickers, M., Baxter, L. L., “Effects of particle shape and size on devolatilization of biomass particle”, Fuel, 89, 1156-1168 (2010).
21 Bidabadi, M., Azimi, M., Rahbari, A., “Effects of radiation and particle size on the pyrolysis of biomass particles”, P. I. Mech. Eng. C-J. Mec., 224, 675-682 (2010).
22 Bidabadi, M., Rahbari, A., “Modeling combustion of lycopodium particles by considering the temperature difference between the gas and the particles”, Combust. Explo. Shock, 45, 278-285 (2009).
23 Bidabadi, M., Rahbari, A., “Novel analytical model for predicting the combustion characteristics of premixed flame propagation in lycopodium dust particles”, J. Mech. Sci. Technol., 23, 2417-2423 (2009).
24 Bidabadi, M., Haghiri, A., Rahbari, A., “The effect of Lewis and Damköhler numbers on the flame propagation through micro-organic dust particles”, Int. J. Therm. Sci., 49, 534-542 (2010).
25 Modest, M.F., Radiative Heat Transfer, McGraw-Hill, New York (1993).

[1]	Yuehua Liu, Lili Chen, Shoujun Liu, Song Yang, Ju Shangguan. Role of iron-based catalysts in reducing NO_x emissions from coal combustion [J]. Chinese Journal of Chemical Engineering, 2023, 59(7): 1-8.
[2]	Wei Wang, Romain Lemaire, Ammar Bensakhria, Denis Luart. Thermogravimetric analysis and kinetic modeling of the co-pyrolysis of a bituminous coal and poplar wood [J]. Chinese Journal of Chemical Engineering, 2023, 58(6): 53-68.
[3]	Xinyu Liu, Hongliang Sheng, Song He, Chunhua Du, Yuansheng Ma, Chichi Ruan, Chunxiang He, Huaming Dai, Yajun Huang, Yuelei Pan. Insight into pyrolysis of hydrophobic silica aerogels: Kinetics, reaction mechanism and effect on the aerogels [J]. Chinese Journal of Chemical Engineering, 2023, 58(6): 266-281.
[4]	Haodi Tan, Minjiao Yang, Yingquan Chen, Xu Chen, Francesco Fantozzi, Pietro Bartocci, Roman Tschentscher, Federica Barontini, Haiping Yang, Hanping Chen. Preparation of aromatic hydrocarbons from catalytic pyrolysis of digestate [J]. Chinese Journal of Chemical Engineering, 2023, 57(5): 1-9.
[5]	Qian Zhu, Yan Zhuang, Hongqing Zhao, Peng Zhan, Cong Ren, Changsheng Su, Wenqiang Ren, Jiawen Zhang, Di Cai, Peiyong Qin. 2,5-Diformylfuran production by photocatalytic selective oxidation of 5-hydroxymethylfurfural in water using MoS₂/CdIn₂S₄ flower-like heterojunctions [J]. Chinese Journal of Chemical Engineering, 2023, 54(2): 180-191.
[6]	Xueguang Li, Mengyan Yu, Changfa Zhang, Xiangtong Li, Guangqing Liu, Jianjun Dai, Chunbao Zhou, Yang Liu, Jie Fu, Yingwen Zhang, Bang Yao. Co-pyrolysis of soybean soapstock with iron slag/aluminum scrap, and characterization and analysis of their products [J]. Chinese Journal of Chemical Engineering, 2023, 53(1): 25-36.
[7]	P.M. Patil, Bharath Goudar. Entropy generation analysis from the time-dependent quadratic combined convective flow with multiple diffusions and nonlinear thermal radiation [J]. Chinese Journal of Chemical Engineering, 2023, 53(1): 46-55.
[8]	Linyang Wang, Qiang Wang, Yongqi Liu, Qiuxiang Yao, Ming Sun, Xiaoxun Ma. Catalytic conversion of asphaltenes to BTXN using metal-loaded modified HZSM-5 [J]. Chinese Journal of Chemical Engineering, 2022, 49(9): 253-264.
[9]	Shidong Xue, Jingkun Han, Xi Xi, Junyi Zhao, Zhong Lan, Rongfu Wen, Xuehu Ma. Rapid velocity reduction and drift potential assessment of off-nozzle pesticide droplets [J]. Chinese Journal of Chemical Engineering, 2022, 46(6): 243-254.
[10]	Xiaobin Chen, Yuting Tang, Chuncheng Ke, Chaoyue Zhang, Sichun Ding, Xiaoqian Ma. CO₂ capture by double metal modified CaO-based sorbents from pyrolysis gases [J]. Chinese Journal of Chemical Engineering, 2022, 43(3): 40-49.
[11]	Shaoxiang Cai, Han Yan, Qiuyi Wang, He Han, Ru Li, Zhichao Lou. Top-down strategy for bamboo lignocellulose-derived carbon heterostructure with enhanced electromagnetic wave dissipation [J]. Chinese Journal of Chemical Engineering, 2022, 43(3): 360-369.
[12]	Peter Keliona Wani Likun, Huiyan Zhang, Yuyang Fan. Improving hydrocarbons production via catalytic co-pyrolysis of torrefied-biomass with plastics and dual catalytic pyrolysis [J]. Chinese Journal of Chemical Engineering, 2022, 42(2): 196-209.
[13]	Xu Hou, Bochong Chen, Zhenzhou Ma, Jintao Zhang, Yuanhang Ning, Donghe Zhang, Liu Zhao, Enxian Yuan, Tingting Cui. Empirical modeling of normal/cyclo-alkanes pyrolysis to produce light olefins [J]. Chinese Journal of Chemical Engineering, 2022, 42(2): 389-398.
[14]	Shen Wang, Xiaokang Pei, Yong Luo, Guangwen Chu, Haikui Zou, Baochang Sun. Preparation of lithium carbonate by microwave assisted pyrolysis [J]. Chinese Journal of Chemical Engineering, 2022, 52(12): 146-153.
[15]	Yanfeng Shen, Yongfeng Hu, Meijun Wang, Weiren Bao, Liping Chang, Kechang Xie. Speciation and thermal transformation of sulfur forms in high-sulfur coal and its utilization in coal-blending coking process: A review [J]. Chinese Journal of Chemical Engineering, 2021, 35(7): 70-82.