Research on the Sulfur-Fixing Effect of Compound Sulfur-Fixing Agents from Carbide Slag and Wastes

Abstract:

In this paper the effects of compound sulfur-fixing agents and compound additives on the sulfur-fixing efficiency were discussed. Thermogravimetric Analysis was used to study the influence of sulfur-fixing agent and additives on the combustion performance. Besides, X-ray fluorescence was applied to research sulfur-fixing mechanism. The results show that, the best sulfur-fixing efficiency was 78.95%, when the ratio of Ca/S was 2.0, experimental temperature was 1000°C, burning time was 20min, the compound sulfur-fixing agents were 80% carbide slag and 20% wastes, the compound additives were 2% iron additives, 6% aluminum additives, 4% sodium additives, 5% silicon additives. The effects of the four additives on the sulfur-fixing efficiency were Al＞Fe＞Si＞Na.

• Periodical: Applied Mechanics and Materials (Volumes 316-317)
• Pages: 312-315
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.316-317.312
• Online since: April 2013
• Authors: Qiao Wen Yang, Ying Zhu, Chuan Liu, Peng Fei Li, Jian Xiong Wang, Zhen Zhou Yang, Wen Yang Lu
• Keywords: Additive, Carbide Slag, Sulfur-Fixing Agent, Sulfur-Fixing Efficiency, Waste

References

[1] Wei Ning, Zhao Bo. Study on the influencing factors of the sulfur-fixing efficiency of calcium-based sulfur-fixing agents [J]. Coal Quality Technology,2007(4):43-45.

[2] Huang Bo, Zhao Zhenxin, Xiong Junwen. Research on the decomposition feature of calcium-based sulfur-fixing agent at high temperature[J]. Coal Engineering, 2007(5):77-79.

[3] Li Bing, Ge Yizhang, Zhang Xianglin. Introduction of fixed-sulphur technology on calcium -based sorbents[J]. Coal Chemical Industry, 1996(1): 48-51.

[4] Song Yongwei, Li Xinsheng, Du Aimin, Ning Weiyun, Liu Fuhua, Wei Tingfu. Influence factor on sulfur retention of briquette [J]. Coal Conversion, 1999, 23(3): 44-47.

[5] Zhang Shengqin, Liang Zhongyu, Chen Kunqi, Sun Jinghui. The thermal analysis of sulfur-fixation of based-calcium sulfur-fixation agent in the atmosphere of rich oxygen[J]. Journal of Chong Qing University of Science and Technology (Natural Science Edition), 2007, 9(1): 21-23.

[6] Deng Nengyun, Zhang Shengqin, Chen Kunqi, Dai Hui, Sun Jinghui. Study on additives to sulfur fixation effects of calcium oxide in pulverized coal burning[J]. Journal of Chong Qing University of Science and Technology (Natural Science Edition), 2011, 13(6): 127-129.

[7] Ferndndez J, Renedo MJ, Pesquera, etal. Effect of CaSO4 on the structure and use of Ca(OH)2/fly ash sorbents for SO2 removal[J]. Powder Technology, 2001, 199:201-205.

DOI: 10.1016/s0032-5910(01)00263-7