Fe_2O_3改性电石渣高温固硫性能的研究  

Research on the Sulfur Fixation Using Fe_2O_3-Modified Carbide Lime under High Temperature Conditions

作　　者：杨明平[1] 罗娟[1] 

机构地区：[1]湖南科技大学,湘潭411201

出　　处：《煤化工》2008年第4期19-22,共4页Coal Chemical Industry

摘　　要：利用工业废弃物电石渣,经适当预处理,并掺入适量的Fe2O3对电石渣进行改性,配制成新型复合固硫剂。在高温条件下进行了固硫实验,达到了较为理想的固硫效果。研究了影响改性电石渣高温固硫效果的因素,分析了该改性电石渣的固硫机理。结果表明,改性电石渣高温固硫的适宜条件为:煤燃烧温度1200℃、Ca/S=2.2、改性电石渣的粒径为100目。在该条件下,对实验用烟煤(含硫量2.92%)燃烧20min,其高温固硫率高达88.5%,较相同条件下的普通钙基固硫剂的固硫率提高30%以上。A new composite of sulfur-fixing agent have been prepared from carbide lime, a kind of industrial waste, through appropriate pretreatment and its modification with a proper amount of Fe2O3. A fixing-sulfur experiment was conducted, and ideal efficiency achieved. The factors that impact sulfur-fixing efficiency of the modified carbide lime were studied, and the property of sulfur-fixing mechanism analyzed. The experimental results showed that the proper conditions of fixing-sulfur for the modified carbide li...

关 键 词：电石渣 FE2O3 改性 高温固硫 燃烧温度 

分 类 号：X701.3[环境科学与工程—环境工程]