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烧结过程NO_x和SO_2形成规律及烧结料组成对NO_x排放的影响
NO_x and SO_2 Formation in the Sintering Process and Influence of Sintering Material Composition on NO_x Emissions

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任重培 1   朱天乐 1 *   朱廷钰 2   吕栋 1  
文摘 采用烧结杯实验方法,研究了烧结过程NO_x和SO_2的形成规律,以及焦粉含量、 含水率和添加助剂对烧结过程NO_x排放的影响. 结果表明,烧结启动后,烧结带自上而下逐层推进,烧结带以下各断面NO_x浓度基本相同. 烧结带产生的SO_2先被待烧结料吸附蓄积,再被热解析出,最后从底部排出,因此只在烧结最后阶段出口能检测到较高浓度的SO_2,且SO_2浓度与时间的关系呈倒V形曲线. 烧结过程产生的NO_x以热力型为主,而且绝大部分为NO, NO_2浓度非常低. 降低焦粉含量和含水率,或添加烧结助剂均有助于降低NO_x排放.
其他语种文摘 NO_x and SO_2 formation in the sintering process and the influence of coke powder content, moisture content and adding additives on NO_x emissions were investigated by the sintering pot experimental method. The results showed that the combustion zone moved downward along the sintering pot after the sintering started. The NO_x concentrations of all monitoring points below the combustion zone were basically the same. SO_2 generated in the combustion zone was adsorbed and accumulated in the sintering materials below the zone. Then, SO_2 was released by pyrolysis, and finally discharged from the outlet of sintering pot. So the significant SO_2 couldn't be detected before the burning through point, and the relationship between the SO_2 concentration and the sintering time displayed an inverted "V" curve. NO_x produced from the sintering process was mainly thermal-NO_x, and most of it was NO, the NO_2 concentration was very low. Reducing the coke powder and moisture contents, or adding sintering additives could effectively reduce NO_x emissions.
来源 环境科学 ,2014,35(10):3669-3673 【核心库】
DOI 10.13227/j.hjkx.2014.10.005
关键词 烧结过程 ; 物料组成 ; NO_x ; SO_2 ; 形成
地址

1. 北京航空航天大学化学与环境学院, 北京, 100191  

2. 中国科学院过程工程研究所, 北京, 100190

语种 中文
文献类型 研究性论文
ISSN 0250-3301
学科 行业污染、废物处理与综合利用
基金 国家环境保护公益性行业科研专项
文献收藏号 CSCD:5244898

参考文献 共 25 共2页

1.  . 国家环境保护部2012年全国环境统计公报 被引 1    
2.  Chen Y G. Influence of CeO_2 on NO_x emission during iron ore sintering. Fuel Processing Technology,2009,90(7):933-938 被引 7    
3.  Chen Y G. NO_x reduction in the sintering process. International Journal of Minerals, Metallurgy and Materials,2009,16(2):143-148 被引 5    
4.  Cavaliere P. Analysis of dangerous emissions and plant productivity during sintering ore operations. Ironmaking & Steelmaking,2013,40(1):9-24 被引 1    
5.  Liu G R. Atmospheric emission of polychlorinated naphthalenes from iron ore sintering processes. Chemosphere,2012,89(4):467-472 被引 5    
6.  Ma S H. Scenario analysis of sulfur dioxide emissions reduction potential in China's iron and steel industry. Journal of Industrial Ecology,2012,16(4):506-517 被引 2    
7.  Tian B. Emission characterization of unintentionally produced persistent organic pollutants from iron ore sintering process in China. Chemosphere,2012,89(4):409-415 被引 20    
8.  Zhao H C. Experimental research on utilization of steel rolling sludge in sintering process. International Journal of Chemical Reactor Engineering,2013,11(1):283-291 被引 1    
9.  魏淑娟. 我国烧结烟气脱硫现状及脱硝技术研究. 环境工程,2014,32(2):95-97,142 被引 12    
10.  张兴胜. 熔剂添加对烧结过程中有害气体排放规律影响的研究. 烧结球团,2012,37(6):66-69 被引 1    
11.  周国凡. 降低铁矿石烧结烟气中二氧化硫的实验研究. 中国冶金,2006,16(12):31-33 被引 1    
12.  Lee M S. Influence of lime/limestone addition on the SO_2 and NO formation during the combustion of coke pellet. ISIJ International,2004,44(3):470-475 被引 6    
13.  Morioka K. Primary application of the "In-Bed-deNO_x" process using CaFe oxides in iron ore sintering machines. ISIJ International,2000,40(3):280-285 被引 11    
14.  Feng G S. Sintering characteristics of fluxes and their structure optimization. International Journal of Minerals, Metallurgy, and Materials,2011,18(3):270-276 被引 3    
15.  Gan M. Reduction of pollutant emission in iron ore sintering process by applying biomass fuels. ISIJ International,2012,52(9):1574-1578 被引 13    
16.  吴胜利. 不同料层高度烧结过程尾气排放规律. 北京科技大学学报,2010,32(2):164-169 被引 9    
17.  潘建. 铁矿烧结烟气减量排放基础理论与工艺研究,2007 被引 15    
18.  潘建. 铁矿烧结烟气中SO2的排放规律. 中南大学学报(自然科学版),2011,42(6):1495-1500 被引 10    
19.  Sammut M L. Speciation of Cd and Pb in dust emitted from sinter plant. Chemosphere,2010,78(4):445-450 被引 7    
20.  Ciaparra D. Characterisation of volatile organic compounds and polycyclic aromatic hydrocarbons in the ambient air of steelworks. Atmospheric Environment,2009,43(12):2070-2079 被引 14    
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