Ni2P/TiO2对甲苯的催化加氢反应性能Toluene Hydrogenation over Ni2P/TiO2 Catalysts
王远强,余夕志,陈长林,徐南平,王延儒
摘要(Abstract)：
以TiO2为载体,磷酸盐为前驱物,用程序升温还原方法制备了系列Ni2P/TiO2催化剂。用X射线衍射(XRD)对催化剂样品的物相进行了分析表征。以甲苯气相加氢反应考察了Ni2P/TiO2催化剂的加氢反应性能。结果表明,TiO2载体上制备的催化剂主要物相为Ni2P。Ni2P/TiO2催化剂对甲苯加氢反应具有较高的转化率、100%产物选择性以及良好的稳定性能。反应温度和反应H2流速对甲苯转化率有影响,随反应温度的增加,甲苯转化率先增加后降低,250℃时,相对较高。随反应H2流速的增加,甲苯转化率降低。Ni负载量及前驱体中P含量对催化剂的性能也有影响,随Ni负载量及P含量的增加,催化剂的活性均先升高后降低,P含量较低的催化剂有部分失活。
关键词(KeyWords)： Ni_2P;TiO_2;甲苯;加氢
基金项目(Foundation): 国家自然科学基金(20476047);; 江苏省材料化学工程重点实验室开放基金(KJ03016)。
作者(Author): 王远强,余夕志,陈长林,徐南平,王延儒
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