摘要
研究了以废聚苯乙烯泡沫为原料制备颗粒活性炭的工艺过程。在将聚苯乙烯炭化（600～650℃）后，采用物理活化法（水蒸气）进行了系列实验，活化时间为60min，活化温度范围800～950℃。实验结果表明，聚苯乙烯炭化物是制备颗粒活性炭的良好原料。不定型颗粒产品灰分低于0．20％，微孔发达，碘值在1200mg／g以上；定型活性炭比表面积在1400m^2／g以上，碘值达到1100mg／g。
Granular activated carbons were prepared from carbonized waste foam polystyrene by physical method （ carbonization at 500 ～ 650℃ ）. Activation time is 60 rain, the activation temperature is 800～950℃, activation agent is steam. The results shows that the micropore is powerful carbonized waste foam polystyrene is a good precursor for preparation of granular activated carbon. Ash content of unshaped samples was less than 0.20%, iodine adsorption value was higher than 1 200 mg/g. Specific surface area of shaped activated carbons was higher than 1 400 m^2/g and iodine adsorption value was reached 1 100 mg/g.
出处
《应用化工》
CAS
CSCD
2008年第8期893-895,共3页
Applied Chemical Industry
基金
东北林业大学创新基金项目(2004)
关键词
聚苯乙烯
颗粒活性炭
炭化
活化
polystyrene
granular activated carbon
carbonization
activation
