中文摘要：

以工业建材级黏土矿石粉为原料,经酸处理或煅烧改性后,利用其多孔性负载多乙烯多胺制得吸附材料,并考察了其硫化氢脱除性能.实验结果表明,经400℃煅烧改性的材料的硫化氢脱除效果最佳.考察了负载方法、吸附温度、水蒸气预处理和负载量等因素对吸附的影响,发现在较低温度以及预加湿的情况下,硫化氢的脱除效果最显著,脱除率接近100%.负载量为33.3%的吸附剂的穿透硫容及饱和硫容均优于其它负载量的吸附剂.再生实验表明,吸附剂可以在较低温度下轻易再生,且多次再生后脱硫效果无显著下降.红外光谱和比表面积测试结果表明,该吸附剂对硫化氢的吸附以化学吸附为主.

英文摘要：

Clay powder was modified by calcination and hydrochloric acid treatment, respectively, and then loaded with polyethylene polyamine. The desulfurization performance of the adsorbent was detected by dynamic H2S adsorption experiment. The results showed that calcination treatment under 400℃ is most favorable to H2S removal. A relatively low adsorption temperature and water vapour pretreatment are beneficial to the improvement of desulfurization performance of adsorbent. The H2S removal rate can reach 100%. The optimal loading amount of polyethylene polyamine is 33.3%. The regeneration performance of adsorbent was also explored, and the result showed that the adsorbent can be recycled for several times without significant decline of desulfurization capacity. The infrared spectroscopic and specific surface area analysis showed that H2S is adsorbed mainly via chemical absorption.