Experimental Study on Combustion Characteristics of Biomass and Coal Blended

Abstract:

Under different conditions,combustion characteristics of the single biomass,the single coal and the mixture of biomass and coal were analyzed by using thermogravimetric analyzer. Combustion characteristic parameters of the sawdust,the rice husk,the rice straw and the Baisha coal of Leiyang were studied,including ignition temperature,the maximum rate of combustion temperature,the burnout temperature and so on. The experimental results show that the biomass burning temperature is lower than the Baisha coal and there are two obvious weight loss phases in the combustion process of the biomass. However,there is only one in the coal. The ignition temperature and time of the coal can be reduced ,the temperature range of the entire combustion can be extended,the coal can be burnout more well and the fuel combustion characteristic can be optimized by blending combustion. With the increase of biomass mixing proportion, the ignition temperature of mixing samples was decreased more obviously. Moreover,when the biomass particle size becomes R200,compared with R90 particle size under the same blending ratio,its ignition temperature is more lower.

• Periodical: Advanced Materials Research (Volumes 805-806)
• Pages: 200-207
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.805-806.200
• Online since: September 2013
• Authors: Bing Zhang*, Guang Wu Lu
• Keywords: Baisha Coal, Biomass, Blended, Thermal Gravimetric Analysis

References

[1] China Energy Development Report.

[1] Editorial Committee of China Energy Development Report [M] Beijing: China Metrology Publishing House, (2003).

[2] cattle Chong Huai, benevolence toward the river. Coal energy supply and demand in China tensions Analysis and Countermeasures [J]. Energy, 2004, 26 (2); 34-37.

[3] Cheng Shiqing, Shang Linlin, Zhang Haiqing biomass pyrolysis and its dynamics law [J] Coal Society, 2006, 31 (4) : 501-05.

[4] D. Gstreet, ST Waldhoef. Biofuel use in Asia and acidifying emissions [J]. Energy, 1988, 23 (12) 1029-1042.

[5] Tian Yee water, Haibo the crop stalks development of the use of technology [M] Beijing: Chemical Industry Press, (2007).

[6] Zhou Fang, Hu Ming-fu, Zhou Guoping biomass energy development and utilization of technical progress [J]. Energy and environment, 2007 (4): 49.

[7] Song Guoqing, Wang Xun co-firing of biomass and coal [J]. Applied Energy Technology, 2008 (4) : 19-21.

[8] Sami M, Annamalai K, Wooldridge M. Co-firing of coal and biomass fuel blends. Prog Energy Combust Sci, 2001, 27: 171.

DOI: 10.1016/s0360-1285(00)00020-4

[9] Demirbas A. Sustainable co-firing of biomass with coal. Energy Convers Manage, 2003, 44: 1465.

[10] Backreedy R I, Jones J M, Pourkashanian M, et al. Burn-out of pulverized coal and biomass chars. Fuel, 2003, 82: (2097).

DOI: 10.1016/s0016-2361(03)00174-1