Experimental Research on Hybrid Strategy and Desulfurization for White Mud and Coal Slurry

Abstract:

White mud is a kind of solid waste from the papermaking process, because of the high pH value and desulfurization material, it can be used as a desulfurization agent. Coal slury is the waste from the coal washing process and generally be used as fuel. This paper studies the hybrid method for white mud and coal slurry to be transported by pipeline, and the furnace desulfurization effect with the mixture. Rheological properties of coal slury and white mud was analyzed, and then based on the rheological data the coal slurry, white mud and water mixed strategy was obtained. By altering calcium sulfur ratio and operation parameters of boiler, fluidizing bed boiler desulphurization effect was tested with the mixture, the economic analysis was also performed through comparision of operational cost. The result shows that the proposed hybrid method is not only relatively simple, but also has the characteristics of good desulfurization effect, high desulfurization efficiency, and good economy. The study has important guiding meaning for desulphurization of coal slurry fluidized bed boiler.

• Periodical: Applied Mechanics and Materials (Volumes 217-219)
• Pages: 923-928
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.217-219.923
• Online since: November 2012
• Authors: Ai Peng Jiang, Jian Wang, Chun Lin Wang, Qiang Ding, Zhou Shu Jiang
• Keywords: Coal Slurry, Desulfurization, Pipeline Transportation, Rheological Property, White Mud

References

[1] Jiang Aipeng, Jiangzhou Shu, Wang Chunlin, et al. Modeling and optimization of slurry wet pipeline transportation system in fluidized bed boiler, Journal of Chemical Industry Engineering (china), Vol.61 (2010), p.1882.

[2] Tang Xiao-ming, Yang Jia-lin, Jiang Xu-guang, Chi Yong, Yan Jian-hua. Rheological behavior in Xinglongzhuang coal washer sludge pump system of CFB boiler，Journal of China Coal Society, vol. 32 (2007) 643-646

[3] Zhao Xueyi, Fu Jianzhuo,Cui Yujiang, Wu Miao. Rheological characteristics experiment of coal slurry, Journal of china university of mining and technology, Vol.35 (2006) 75-78

[4] Cao Youhon.Industrial Application of Paper Making White Mud FGD Technology, Environmental Protection Science(China), Vol. 35 (2009) 12-16

[5] NI Shou-qing, YU Zhen-chuan, SONG Xiao-dong. A study of white mud in flue gas desulfurization in power plants, China Pulp and Paper Industry, Vol. 34 (2008) 23-26

[6] CHU Xianfeng，DING Fujun，TIAN Jianru. Research on Desulphurization via Soda-Residue and Sea-Water Technology in Huangdao Power Plant, Research of Environmental Sciences,Vol.21(2008) 76-79

[7] Chen R, Wilson M, Leong Y K, etc. Preparation and rheology of biochar, lignite char and coal slurry fuels, Fuel, Vol.90 (2011) 1689-1695

DOI: 10.1016/j.fuel.2010.10.041

[8] Afsin G, Nurdil E. Effects of operational parameters on emission performance and combustion efficiency in small-scale CFBCs, Journal of the Chinese Institute of Chemical Engineers Vol.39 (2008) 541–556

DOI: 10.1016/j.jcice.2008.05.007

[9] Wang Hongdi, Fan jiafeng, Zhang Weifeng. Research of Desulfurizing Method of Industrialization in Coal Sludge-fired CFB Boiler, Power System Engineering(China), Vol. 20 (2004) 53-55