| 摘要: |
| 目的 研制出高性能的柴油深度加氢脱硫催化剂。方法 制备了一系列不同Mo/（Mo+W）原子比的Ni-Mo-W复合氧化物，利用低温N2吸附、XRD、XRF、XPS、H2-TPR和SEM技术对复合氧化物进行了表征，并以复合氧化物为前驱体制备了体相加氢催化剂。考查了以常二线、常三线混合柴油为原料时体相加氢催化剂和工业负载型催化剂的柴油深度加氢脱硫活性。结果 在Ni-Mo-W复合氧化物中，随着Mo/（Mo+W）原子比的降低，其比表面积逐渐降低，孔径逐渐增大。Ni-Mo-W复合氧化物存在Ni、Mo和W之间的相互作用，从而改变Ni-Mo-W复合氧化物的物相、形貌和可还原性等。以Ni-Mo-W复合氧化物制备的体相加氢催化剂具有超高的加氢脱硫活性和芳烃饱和性能，其加氢脱硫活性比工业负载型催化剂高3.95倍。结论 深度加氢脱硫体相催化剂可满足高标准清洁柴油生产的需要。 |
| 关键词: Ni-Mo-W复合氧化物 体相催化剂 柴油 深度加氢脱硫 芳烃加氢饱和 |
| DOI：10.3969/j.issn.1007-3426.2025.02.003 |
| 分类号: |
| 基金项目:中化泉州石化有限公司技术开发项目“油品加氢精制关键催化剂及相关新材料的研发”（QZSH-SCYY-18-F-ZC0605-1763） |
|
| Preparation and characterization of bulk catalyst for deep hydrodesulfurization of diesel |
|
Jingdong XU1,2, Weimin CHEN1,2, Huisheng LI1,2, Meiling WANG1,2, Xiaolin ZENG1,2, Renwei XU1,2
|
|
1.Sinochem Quanzhou Petrochemical Company Limited, Quanzhou, Fujian, China;2.Sinochem Quanzhou Energy Technology Company Limited, Quanzhou, Fujian, China
|
| Abstract: |
| Objective The aim is to develop high performance catalysts for deep hydrodesulfurization of diesel. Method A series of Ni-Mo-W composite oxides with different Mo/(Mo+W) atomic ratios were prepared. The composite oxides were characterized by low temperature N2 adsorption, XRD, XRF, XPS, H2-TPR and SEM, and bulk hydrogenation catalysts were prepared using the composite oxides as the precursor. The deep hydrodesulfurization activity of diesel with bulk hydrogenation catalyst and industrial supported catalyst was investigated when the mixed diesel of the second and third atmospheric side-stream was used as the feedstock. Result The specific surface area of the Ni-Mo-W composite oxides decreased, while the pore size increased, as the Mo/(Mo+W) atomic ratio decreased. Ni-Mo-W composite oxides had the interaction between Ni, Mo and W, which changed the phase, morphology and reducibility of Ni-Mo-W composite oxides. The bulk hydrogenation catalyst synthesized from these Ni-Mo-W composite oxides exhibited ultra high hydrodesulfurization activity and superior aromatics saturation performance. Notably, its hydrodesulfurization activity was 3.95 times higher than that of the industrial supported catalyst. Conclusion The deep hydrodesulfurization bulk catalyst can meet the needs of high standard clean diesel production. |
| Key words: Ni-Mo-W composite oxide bulk catalyst diesel deep hydrodesulfurization aromatics hydrogenation saturation |
