段艳¹,王欣²,侯凯湖³

• 1:百色学院 化学与环境工程学院，广西 百色 533000
• 2:石家庄学院 化工学院，河北 石家庄 050000
• 3:河北工业大学 化工学院，天津 300130

摘要(Abstract)：

以柠檬酸为络合剂，采用溶胶-凝胶法制备了非负载Ni-Mo复合氧化物催化剂，经过H₂还原得到还原态催化剂。以环丁砜为反应原料，考察了还原条件对Ni-Mo复合氧化物催化剂结构及选择性加氢脱氧催化性能的影响。结果表明，非负载催化剂中NiO和MoO₃形成了复合氧化物NiMoO₄。NiMoO₄的形成降低了催化剂的还原温度；还原温度的升高和还原时间的延长有利于催化剂充分还原。催化剂的适宜还原条件为：还原温度400℃，H₂流量45 mL·min^-1，还原时间3 h；在0.3 MPa，230℃，V_氢气/V_原料=200，1 h^-1反应条件下，催化剂的性能是环丁砜的转化率为95.6%，四氢噻吩的选择性为86.2%。

关键词(KeyWords)： Ni-Mo复合氧化物;还原条件;选择性加氢脱氧;四氢噻吩

Abstract:

Keywords:

基金项目(Foundation): 广西高校科研项目（KY015YB278）；百色学院重点科研项目（2014KA01）。

作者(Author): 段艳¹,王欣²,侯凯湖³

DOI: 10.3969/j.issn.1003-9015.2016.00.034

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