火力发电厂烟气脱硫添加剂应用的技术经济分析Economic Analysis of Technology for Flue Gas Desulfurization Additives Application in Thermal Power Plants
张永国,董传深
ZHANG Yong-guo,DONG Chuan-shen (Shenghua Guohua Zheneng Power Generation Co.
摘要(Abstract)：
在综述石灰石—石膏法湿法烟气脱硫添加剂研究现状的基础上,结合某火力发电厂600 MW机组烟气脱硫系统脱硫添加剂的实践,分析脱硫添加剂应用的技术经济性。实践应用表明,在现有的脱硫系统不改变的情况下,加入脱硫添加剂可以使得脱硫效率明显上升,脱硫系统对煤种硫份变化的适应范围变大,高硫煤得以利用;在保证脱硫效率不变的情况下,通过加入添加剂并调整浆液循环泵运行方式,可节省循环泵的运行电量,具有明显的环境保护及经济效益。
Based on the current researches of limestone-gypsum wet flue gas desulfurization(FGD) additives,this paper analyzes the technical economy of the desulfurization additives application combined with the practical application of the desulfurization additives in the 600 MW unit FGD system in a thermal power plant.The result shows that desulfurization efficiency rises significantly with the use of the additives in the existing desulfurization system which remains the same.The desulfurization system has a wider range to adapt to the variations of sulfur content in coal,so high-sulfur coal can be utilized.By adding additives and adjusting the slurry circulating pump operation mode,the operation electricity of circulating pump can be saved leaving the desulfurization efficiency unchanged.It can achieve obvious environmental and economic benefits.
关键词(KeyWords)：
脱硫;添加剂;技术;经济;火力发电厂
desulfurization;additives;technology;economy;thermal power plant
基金项目(Foundation):
作者(Author):
张永国,董传深
ZHANG Yong-guo,DONG Chuan-shen (Shenghua Guohua Zheneng Power Generation Co.
DOI: 10.19585/j.zjdl.2011.07.012
参考文献(References)：
- 胡金榜,胡玲玲,段振亚,等.湿法烟气脱硫添加剂研究进展[J].化学工业与过程,2005,22(6):456-460.
- 杨磊,卢啸风.WFGD工艺典型脱硫添加剂应用探讨[J].电站系统工程,2007,23(3):4-6.
- MOBLEY J D.Organic Acids Can Enhance Wet Lime-stone Flue Gas Scrubbing[J].Power Engineering,1986,90(5):32-35.
- 李玉平,谭天恩,景国红.无机盐对SO2.H2O.CaCO3气、液、固三相反应系统pH值的影响[J].环境污染与防治,1997,19(5):1-5.
- ROCHELLER G T,KING C J.The Effect of Additives onMass Transfer in CaCO3 or CaO Slurry Scrubbing of SO2form Waste Gases[J].Ind Eng Chem Fund,1977,16(1):67-75.
- AHLBECK J,ENGMAN T,FALTEN S,et al.A Methodfor Measuring the Reactivity of Absorbents for Wet FlueGas Desulfurization.Chem Eng Sci[J].1993,48(20):3479-3484.
- OLAUSSON S,WALLIN M,BJERLE I.A Model for theAbsorption of Sulfur Dioxide into a Limestone Slurry.TheChemical Engineering Journal[J].1993,51:99-108.
- 吴忠标,余世清,莫建松.己二酸强化石灰石浆液脱硫工艺过程研究[J].高校化学工程学报,2003,17(5):540-544.
- 奚胜兰.石灰石湿法烟气脱硫添加剂的实验研究[J].能源环境保护,2003,17(1):32-35.
- 袁翀,庞旭,薛勇.湿法烟气脱硫添加剂的试验研究[J].江苏环境科技,2007,20(2):27-30.