基于赤泥脱硫剂的烟气脱硫特性试验研究与应用  

Red mud desulfurization pilot experiment and application

作　　者：竹涛[1,2] 夏妮[1] 李光腾 沈嫣然 万星良 孙超[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083 [2]煤炭资源与安全开采国家重点实验室,北京100083

出　　处：《中国科技论文》2016年第9期1056-1061,共6页China Sciencepaper

基　　金：煤炭资源与安全开采国家重点实验室开放课题资助项目(SKLCRSM16KFA04);新世纪优秀人才支持计划资助项目(NCET-12-0967);北京市优秀人才培养资助项目(2012ZG-81)

摘　　要：为充分利用赤泥废渣特殊的理化特性,达到以废制废和资源化循环利用的目的,研究将联合法冶炼金属铝时伴生的大量赤泥废渣用作湿法脱硫的SO_2吸收剂。首先研究了联合法赤泥的物理化学特性,之后应用于中试实验,分析了液气比、烟气流量和液固比对赤泥脱硫效率的影响,并使用正交试验的方法,得到赤泥脱硫的最佳工艺参数,最后详细分析了赤泥脱硫的反应机理。结果表明,赤泥具有优良的脱硫性能,在中试工艺中,液固比为10∶1,烟气流速为3m/s,液气比为15∶1时,脱硫效率可高达98.8%。The large amount of red mud is creatively used as the SO2 absorption in the process of wet desulphurization,which are come from combined method smelting metal aluminum.It makes full use of the special physical and chemical properties of red mud waste residue.Moreover,it reaches another purpose of waste recycling and resource recovery Firstly,the influence factorsof red mud desulfurization efficiency are studied,including the physical and chemical characteristics of red mud,the liquid gas ratio,the gas flow rate and the liquid solid ratio.Then,red mud desulfurization optimum technological parameters are gotten by the orthogonal experiment method.At last,the reaction mechanism of red mud desulfurization is analyzed.It is shown that the desulfurization performance of red mud is good.It is found that the desulfurization efficiency could be as high as 98.8% when the liquidsolid ratio of 10︰l,the velocity of flue gas of 3m/s,and the liquid gas ratio of 15∶1.

关 键 词：环境工程 赤泥 中试 脱硫 物理化学特性 正交试验 应用 

分 类 号：X701.3[环境科学与工程—环境工程] X758