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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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硫代硫酸铵预硫化的mo/ac催化剂加氢脱硫性能的研究
, PP. 202-207
Keywords: 硫代硫酸铵,预硫化,硫化剂,加氢脱硫,活性炭,噻吩
Abstract:
？采用等体积浸渍法将硫代硫酸铵(ats)负载在mo/ac催化剂上,制备了器外预硫化的mo/ac-ats催化剂;以噻吩加氢脱硫(hds)为探针反应,考察了活化温度和活化时间对预硫化催化剂加氢脱硫活性的影响。研究发现,300℃下活化0.5h所得到的预硫化催化剂具有最好的加氢脱硫活性。与传统硫化剂cs2和dmds硫化的催化剂相比,采用mo/ac-ats催化剂,在最佳活化条件下,噻吩转化率分别提高了34%和42%。xps、tpr-ms和tem等表征结果显示,预硫化的mo/ac-ats催化剂中mo4+含量较高,这是其具有较高加氢脱硫活性的主要原因。
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