| 薛冬,吕振辉.柠檬酸添加方式对Mo-Ni-P/Al2O3催化剂加氢活性的影响[J].分子催化,2017,31(4):382-389 |
| 柠檬酸添加方式对Mo-Ni-P/Al2O3催化剂加氢活性的影响 |
| Effect of Addition Method of Critric Acid on Hydrogenation Performance of Avtivity of Mo-Ni-P/Al2O3 Catalyst |
| 投稿时间：2017-03-27 修订日期：2017-04-10 |
| DOI： |
| 中文关键词: 柠檬酸 制备方法 催化剂 加氢 活性 |
| 英文关键词:citric acid preperaion method catalyst hydrogenation activity |
| 基金项目: |
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| 摘要点击次数: 1754 |
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| 中文摘要: |
| 以Mo、Ni为活性组分，Al2O3为载体，采用不同柠檬酸添加方法制备了Mo-Ni-P/Al2O3催化剂.通过氢气程序升温还原（H2-TPR）、X射线衍射（XRD），透射扫描电镜（TEM）、XPS等表征方法研究催化剂的物化性质.结果表明：催化剂经柠檬酸的后处理，改善了载体氧化铝表面羟基基团的分布，促使Mo物种以八面体配位多核聚钼酸的形态存在，有效地减弱了载体与活性金属之间的强相互作用，提高了Mo物种的分散度与硫化度，使得催化剂形成更多"Mo-Ni-S"加氢活性相，提高了催化剂的加氢活性.与其他处理方法相比，柠檬酸后处理的催化剂对VGO具有更高的加氢脱硫、脱氮与芳烃饱和性能. |
| 英文摘要: |
| Mo-Ni-P/Al2O3 catalyst was prepared by loading Mo-Ni metals on Al2O3 support, treated by different citric acid addition methods. The physicochemical properties of the catalysts were characterized by H2-TPR, XRD, TEM and XPS. The results show that the treatment not only promotes Mo species to form octahedral coordinated multi-core plyoxomolybdate acid, improving the distribution of hydroxyl on the Al2O3 support surface, but also increases the dispersion and sulfidation degree of Mo species on the Mo-Ni-P/Al2O3 catalyst by weakening the interaction between Al2O3 support and active metals, resulting in more "Mo-Ni-S" active phase and higher hydrogenation performance. Compared with the catalyst prepared by other methods with citric acid, the catalyst of post-treated with glycol solution shows higher HDS, HDN and aromatics saturation performance than other methods catalysts for VGO. |
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