Journal of Zhejiang University SCIENCE A
ISSN 1673-565X(Print), 1862-1775(Online), Monthly

2007   Vol. 8   No. 9   p. 1495~1499

Fluidized-bed pyrolysis of waste bamboo

XIAO Gang^†1, NI Ming-jiang², HUANG He³, CHI Yong², XIAO Rui¹, ZHONG Zhao-ping¹, CEN Ke-fa¹

(¹Key Lab. on Clean Coal Power Generation and Combustion Technology of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China)
(²State Key Lab. of Clean Energy Utilization, College of Mechanical and Energy Engineering, Zhejiang University, Hangzhou 310027, China)
(³College of Life Science and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing 210009, China)
^†E-mail: xiaogangtianmen@seu.edu.cn
Received Feb. 10, 2007 revision accepted Mar. 24, 2007

Abstract: Bamboo was a popular material substituting for wood, especially for one-off commodity in China. In order to recover energy and materials from waste bamboo, the basic characteristics of bamboo pyrolysis were studied by a thermogravimetric analyzer. It implied that the reaction began at 190~210 °C, and the percentage of solid product deceased from about 25% to 17% when temperature ranged from 400 °C to 700 °C. A lab-scale fluidized-bed furnace was setup to research the detailed properties of gaseous, liquid and solid products respectively. When temperature increased from 400 °C to 700 °C, the mass percent of solid product decreased from 27% to 17% approximately, while that of syngas rose up from 19% to 35%. When temperature was about 500°C, the percentage of tar reached the top, about 31%. The mass balance of these experiments was about 93%~95%. It indicated that three reactions involved in the process: pyrolysis of exterior bamboo, pyrolysis of interior bamboo and secondary pyrolysis of heavy tar.

Key words: Bamboo, Pyrolysis, Fluidized beds, Syngas, Tar
doi:10.1631/jzus.2007.A1495             CLC number: TK229

References:

[1] Ayşe, E.P., Başak, B.U., Esin, A., Ersan, P., 2005. Bio-oil from olive oil industry wastes: Pyrolysis of olive residue under different conditions. Fuel Processing Technology, 86:25-32. [dio:10.1016/j.fupro.2005.04.003]

[2] Chen, G., Andries, J., Luo, Z., Spliethoff, H., 2003a. Biomass pyrolysis/gasification for product gas production the overall investigation of parametric effects. Energy Conversion and Management, 44(11):1875-1884.

[3] Chen, G.Y., Fang, M.X., Andries, J., Luo, Z.Y., Spliethoff, H., Cen, K.F., 2003b. Kinetics study on biomass pyrolysis for fuel gas production. Journal of Zhejiang University SCIENCE, 4(4):441-447.

[4] Du, Y., Qi, W.Y., Miao, X., Li, G.Y., Hu, C.W., 2004. Chemical analysis of pubescens and its pyrolysis. Journal of Chemical Industry and Engineering, 55(12):2099-2102 (in Chinese).

[5] Li, A.M., Yan, J.H., Li, S.Q., Gu, Y.L., Li, X.D., Ren, Y., Chi, Y., 2000. Pyrolysis of municipal solid waste in rotary klin: studies on characteristics of pyrolytic tar. Journal of Combustion Science and Technology, 6(3):195-199 (in Chinese).

[6] Li, S.G., Xu, S.P., Liu, S.Q., Yang, C., Lu, Q.H., 2004. Fast pyrolysis of biomass in free-fall reactor for hydrogen-rich gas. Fuel Processing Technology, 85(8-10):1201-1211.

[7] Li, Z.J., Lin, P., He, J.Y., Yang, Z.W., Lin, Y.M., 2006. Silicon’s organic pool and biological cycle in moso bamboo community of Wuyishan Biosphere Reserve. Journal of Zhejiang University SCIENCE B, 7(11): 849-857.

[8] Ni, M., Leung, D.Y.C., Leung, M.K.H., Sumathy, L.K., 2006a. An overview of hydrogen production from biomass. Fuel Processing Technology, 87(5):461-472.

[9] Ni, M.J., Xiao, G., Chi, Y., Yan, J.H., Miao, Q., Zhu, W.L., Cen, K.F., 2006b. Study on pyrolysis and gasification of wood in MSW. Journal of Environmental Sciences, 18:407-415.

[10] Tan, H., Wang, S.R., Luo, Z.Y., Yu, C.J., 2005. Experimental study of lignin flash pyrolysis. Journal of Zhejiang University (Engineering Science), 39(5):710-714 (in Chinese).

[11] Wang, W.J., Hui, C.M., Liu, C., Wang, C.M., Chen, Y.H., Fu, H., 1999. A study on the chemical components of 14 timber bamboo species in Yunnan Province. Journal of Bamboo Research, 18(2):74-78 (in Chinese).

[12] Wang, S.R., Liu, Q., Luo, Z.Y., Wen, L.H., Cen, K.F., 2006. Mechanism study of cellulose pyrolysis using thermogravimetric analysis coupled with infrared spectroscopy. Journal of Zhejiang University (Engineering Science), 40(7):1154-1157 (in Chinese).

[13] Xiao, G., Chi, Y., Ni, M.J., Miao, Q., Zhu, W.L., Zheng, J., Tu, H.B., Cen, K.F., 2007. Fluidized-bed pyrolysis and gasification of waste paper. Journal of Engineering Thermophysics, 28(1):161-163 (in Chinese).

[14] Yan, J.H., Peng, Z., Lu, S.Y., Li, X.D., Cen, K.F., 2006. Removal of PCDDs/Fs from municipal solid waste incineration by entrained-flow adsorption technology. Journal of Zhejiang University SCIENCE A, 7(11):1896-1903.

[15] Zhang, Y.F., Deng, N., Zhang, S.T., Li, X.G., Zhou, X., Zhou, Y., 2005. Pyrolysis on screen residue of municipal household waste. Journal of Tianjin University, 38(6):556-560 (in Chinese).

[16] Zhou, J.Z., Xu, G.H., 2004. Measurement of the constituent of bamboo powder and its precision analysis. Research and Exploration in Laboratory, 23(1):25-27 (in Chinese).

[17] Zhou, J., Yang, Y.R., Ren, X.H., Stapf, S., 2006. Investigation of reinforcement of the modified carbon black from waste tires by nuclear magnetic resonance. Journal of Zhejiang University SCIENCE A, 7(8):1440-1446.