以低变质粉煤与液化残渣为原料,水蒸气为活化剂,研究了活化时间与活化温度对成型活性炭吸附性能、抗压强度和活性炭收率的影响.采用N2吸附、SEM、碘吸附等手段对成型活性炭的孔径分布及吸附性能进行了分析表征.研究表明,经700℃炭化1.0h,800℃水蒸气活化1.5h制备的成型活性炭碘吸附值为820 mg/g,活性炭收率为36.63％,抗压强度为0.08 MPa,比表面积为509 m2/g,其总孔容积达0.35 cm3/g.随着活化时间的延长,成型活性炭的碘吸附值先增大后减小,炭化收率和抗压强度都逐渐降低;随着活化温度的升高,成型活性炭的碘吸附值先增大后减小,炭化收率和抗压强度都逐渐减小.
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