高温燃煤钙基纳米金属氧化物复合吸附剂同时除砷脱硫研究  

Simultaneous Dearsenization and Desulfurization by Calcium-based Nano-metal Oxides Compound Sorbents during Coal Combustion

作　　者：陈锦凤[1,2] 李翼[1] 朱丹[1] 王肖戈[3] 成金华[3] 帅琴[1] 

机构地区：[1]中国地质大学(武汉)材料科学与化学工程学院,湖北武汉430074 [2]武汉理工大学资源与环境工程学院,湖北武汉430070 [3]中国地质大学(武汉)经济学院,湖北武汉430074

出　　处：《分析科学学报》2010年第2期179-182,共4页Journal of Analytical Science

基　　金：科技部国际合作项目(No.2006DFA63190);国家自然科学基金(No.20575061);教育部科学技术重点项目(No.108090);煤燃烧国家重点实验室开放基金(No.FSKLCC0812)

摘　　要：将纳米MgO、Al2O3和ZnO分别添加于超细CaCO3中制备出钙基纳米金属氧化物复合吸附剂,并进行燃煤过程中除砷脱硫的试验研究。结果表明,在Ca/S摩尔比为1.8,燃烧温度为1200℃,纳米金属氧化物的添加量为超细CaCO3质量的8%时,添加了纳米MgO的复合吸附剂除砷脱硫性能最好,比单一的超细CaCO3除砷率和脱硫率分别高出了28.73%和37.21%,表现出同时除砷脱硫的良好性能。A series of calcium-based nano-metal oxides compound sorbents were prepared by doping nano-MgO,Al2O3 and ZnO into ultrafine CaCO3,respectively. The characteristics of dearsenization and desulfurization were investigated during coal combustion. The results showed that the efficiency of dearsenization and desulfurization were increased by 28.73% and 37.21% with calcium-based nano-MgO compound sorbent,when Ca/S molar ratio was 1.8 and combustion temperature was 1200℃. The amount of nano-MgO doped was only 8% of ultrafine CaCO3 mass. The compound sorbent of calcium-based nano-MgO could be applied to the coal combustion for dearsenization and desulfurization simultaneously.

关 键 词：纳米金属氧化物 钙基材料 除砷脱硫 燃煤 

分 类 号：O657.31[理学—分析化学]