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载体的酸性和钠含量对Ni-Mo催化剂加氢脱硫性能的影响

Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2011-01-12

Journal: 石油炼制与化工

Included Journals: CSCD、ISTIC、PKU、Scopus

Volume: 42

Issue: 1

Page Number: 20-27

ISSN: 1005-2399

Key Words: MCM-41;HY沸石;加氢脱硫;钠含量;酸性

Abstract: 用MCM-41和Na交换的MCM-41(NaMCM-41)以及它们与NaY和HY沸石的机械混合物为载体负载Ni-Mo制备了加氢脱硫(HDS)催化剂,用ICP-AES、吡啶吸附红外、UV-Vis、TPR等对载体和所制备的催化剂进行了表征.以二苯并噻吩(DBT)为模型化合物评价了催化剂的HDS活性,考察了载体的酸性和Na含量对催化剂HDS活性的影响.发现Ni-Mo催化剂的HDS活性与载体的Na+含量和B酸量有关,而与L酸量关系不大.通过催化剂的HDS反应和TPR表征结果,发现在载体酸中心和活性组分之间可能存在着以溢流氢为纽带的协同作用.

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