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测定了30℃和50℃下,二苯并噻吩的吸附等温线。结果表明,在二苯并噻吩的质量分数为12 00μg/g时二苯并噻吩的平衡吸附量分别为81.1 mg/g和76.8 mg/g,采用Langmuir模型进行关联,计算值与实验值的误差分别为7.55%和2.57%;实验还考察了苯对二苯并噻吩吸附的影响,发现二苯并噻吩双组分吸附平衡量比单组分分别降低了10.2%和12.1%。固定床穿透实验结果表明:苯存在情况下,二苯并噻吩的穿透容量较单组分降低了24.4%。
The adsorption isotherms of dibenzothiophene were measured at 30 ℃ and 50 ℃. The results showed that the equilibrium adsorption of dibenzothiophene was 81.1 mg / g and 76.8 mg / g respectively at the mass concentration of dibenzothiophene of 12 00 μg / g, and Langmuir model was used to correlate the calculated values with the experimental ones Respectively 7.55% and 2.57%. The effect of benzene on dibenzothiophene adsorption was also investigated. It was found that the dibenzothiophene bi-component adsorption balance decreased by 10.2% and 12.1% respectively compared with the single component. The experimental results of fixed bed penetration show that the breakthrough capacity of dibenzothiophene is 24.4% lower than that of single component in the presence of benzene.