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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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mn/al-sba-15的制备及吸附脱硫性能
, PP. 449-455
Keywords: 噻吩,吸附,sba-15,酸性,再生
Abstract:
？以嫁接法制备的al-sba-15为载体,醋酸锰为活性组分前驱体,通过浸渍法制备mn/al-sba-15吸附剂。利用x射线衍射(xrd)、n2吸附-脱附、nh3程序升温脱附(nh3-tpd)、吡啶-原位傅里叶变换红外(py-ftir)和x射线光电子能谱(xps)等表征手段对吸附剂进行分析,以模拟汽油中噻吩的脱除反应为模型反应考察了吸附剂的吸附性能,确定了吸附剂的最佳al/si物质的量比,并结合表征结果对吸附剂脱硫过程进行机理探讨,最后研究了吸附剂的再生性能。实验结果表明,当al/si(molratio)为1:45时,吸附剂脱硫性能最高;吸附剂主要通过酸碱作用吸附噻吩分子;al的引入提高了吸附剂的结构稳定性,从而提高了吸附剂的再生性能。
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