半焦法制备褐煤活性炭的炭化条件研究  

Carbonation condition study of making activated carbon from semi-coke of lignite

作　　者：杨巧文[1] 陈思[1] 赵昕伟 杨金华[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

出　　处：《煤炭加工与综合利用》2015年第7期74-77,7,共4页Coal Processing & Comprehensive Utilization

摘　　要：以内蒙古褐煤为原料进行半焦法制备活性炭的研究,实验确定了最佳炭化条件:炭化温度550℃,炭化升温速率10℃/min,炭化时间1.0 h;在上述条件下制备的半焦在活化温度900℃、活化时间3 h、水蒸气通量1.5 kg/(kg·h)的条件下制成活性炭,其碘吸附值达826 mg/g,产率50.12%,灰分19.14%,比表面积为807 m2/g,中孔率为58.6%。Study of making activated carbon from semicoke,taking the lignite from Inner Mongolia as feed stock;best conditions determined by experiment that: temperature of carbonization 550 ℃, rate of temperature elevation 10 ℃ /min,duration of carbonization 1. 0 h; the semi-coke produced under above conditions,activated carbon produced at activated temperature 900 ℃,activated duration 3 h,steam flow 1. 5kg /( kg·h),its iodine adsorption value 826 mg / g,product yield 50. 12%,ash19. 14%,specific surface 807 m2/ g,rate of medium pore 58. 6%.

关 键 词：活性炭 褐煤 炭化 活化 试验 

分 类 号：TQ424.11[化学工程]