改质煤沥青制备活性炭的研究  

Study on preparation activated carbons from modified coal tar pitch

作　　者：欧阳曙光[1] 胡义方[1] 

机构地区：[1]武汉科技大学煤转化与新型炭材料湖北省重点实验室,湖北武汉430081

出　　处：《应用化工》2013年第5期835-837,共3页Applied Chemical Industry

基　　金：湖北省教育厅科学技术研究计划重点项目(D20101101)

摘　　要：以改质煤沥青为原料,采用KOH活化法制备活性炭。探讨了碱炭比、炭化时间、活化温度、活化时间等对活性炭吸附性能的影响。结果表明,制备改质煤沥青基活性炭的最佳条件为:碱炭比为4,炭化时间为45 min,活化温度840℃,活化时间140 min,在此条件下,制得改质煤沥青基活性炭的碘吸附值为1 152.8 mg/g。The activated carbon prepared from modified coal tar pitch with KOH activation was investigated. The effects of alkali carbon ratio, carbonization time, activation temperature and activation time on the adsorption capacities of activated carbon were evaluated. The results shows that the optimum condition for the preparation of activated carbon from modified coal tar pitch ： alkali carbon ratio is 4, the carbonization time is 45 min, activation temperature is 840 ℃, activation time is 140 min. Under this condition, the prepared modified coal tar pitch activated carbon,the iodine capacity is 1 152.8 mg/g.

关 键 词：改质煤沥青 KOH活化 正交实验 活性炭 

分 类 号：TQ520.9[化学工程—煤化学工程]