矿产综合利用Issue(2)：143-146,138,5.DOI:10.3969/j.issn.1000-6532.2018.02.032
钢渣对烧结烟气脱硫的动力学影响分析
Analysis of the Dynamic Process of the Desulfurization of Sintering Flue Gas using Steel Slag
摘要
Abstract
The iron and steel industry is the pillar industry in China.However,it is one of the pollutant sources in our country,especially the emission of SO2 in sintering flue gas.As the by-product of iron-making and steelmaking industry,steel slag can be used in desulfurization reaction from sintering flue gas.That can make less sulfur dioxide emission in the process of sinter,and reduce the environmental pollution.In this article,the dynamic model of the desulfurization reaction from sintering flue gas with steel slag was set up by using the two-film theory and the dynamical process has been analyzed.Sintering flue gas desulphurization with steel slag can be divided into five events:gas-film diffusion,liquid-film diffusion,solid-film diffusion,internal diffusion,chemical reaction process.Analyzed the mass transfer resistance with the process of sintering flue gas desulphurization with steel slag with the Fick law.There are gas-film resistance,liquid-film resistance and solid-film resistance in the whole process.And the main transfer resistance is the gas-film resistance.Experimental results and study show that the reaction rate of process is limited by gas-film résistance.Put forward the kinetic equation with the Fick law and the dynamic model of the process of sintering flue gas desulphurization with steel slag,and the kinetic equation is:rSO2 =KA(g)Rne D/L(CSO2(g)-CSO2(L)/HRT)关键词
烧结烟气/钢渣/SO2/脱硫/动力学Key words
Sintering flue gas/Steel slag/SO2/Desulfurization/Dynamics分类
矿业与冶金引用本文复制引用
马涛,杨桂宇,邓美乐,李运刚..钢渣对烧结烟气脱硫的动力学影响分析[J].矿产综合利用,2018,(2):143-146,138,5.基金项目
国家自然科学基金(51474088) （51474088）
