| 多环芳烃对柴油超深度加氢脱硫催化剂运行稳定性的影响 |
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| 引用本文： | 丁石 葛泮珠张锐,习远兵张乐,李大东聂红. 多环芳烃对柴油超深度加氢脱硫催化剂运行稳定性的影响[J]. 中国炼油与石油化工, 2022, 24(1): 90-99 |
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| 作者姓名： | 丁石 葛泮珠张锐 习远兵张乐 李大东聂红 |
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| 作者单位： | 中国石化石油化工科学研究院 |
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| 摘 要： | The effect of polycyclic aromatic hydrocarbons (PAHs) on the stability of the hydrogenation catalyst for production of ultra-low sulfur diesel was studied in a pilot plant using Ni-Mo-W/γ-Al2O3 catalyst. The mechanisms of catalyst deactivation were analyzed by the methods of elemental analysis, nitrogen adsorption-desorption, thermogravimetry-mass spectrometry (TG-MS) technology, X-ray photoelectron spectroscopy (XPS) and high resolution transmission electron microscopy (HRTEM). The results demonstrated that PAHs had little effect on the activity of catalyst at the beginning of operation, during which the reaction temperature was increased by only 1 — 4 ℃. However, the existence of PAHs significantly accelerated the deactivation of catalyst and weakened the stability of catalyst. This phenomenon could be explained by that the catalyst deactivation is not only related to the formation of carbon deposit, but also is closely related to the loss of pore volume and the decrease of Ni-W-S phase ratio after adding PAHs.
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| 关 键 词： | 超深度加氢脱硫柴油 催化剂失活 多环芳烃 |
| 收稿时间： | 2021-07-29 |
| 修稿时间： | 2021-12-17 |
Effect of polycyclic aromatic hydrocarbons on the stability of the catalyst for the production of diesel with ultra-low sulfur content |
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| Ding Shi Pan-Zhu GE Zhang Rui Xi Yuanbing Zhang Le Li Dadong Nie Hong. Effect of polycyclic aromatic hydrocarbons on the stability of the catalyst for the production of diesel with ultra-low sulfur content[J]. China Petroleum Processing and Petrochemical Technology, 2022, 24(1): 90-99 |
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| Authors: | Ding Shi Pan-Zhu GE Zhang Rui Xi Yuanbing Zhang Le Li Dadong Nie Hong |
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| Affiliation: | 1. ;2. RIPP;3. Research Inistitute of Petroleum Processing, SINOPEC;4. SINOPEC Research Institute of Petroleum Processing; |
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| Abstract: | The effect of polycyclic aromatic hydrocarbons (PAHs) on the stability of the hydrogenation catalyst for production of ultra-low sulfur diesel was studied in a pilot plant using Ni-Mo-W/γ-Al2O3 catalyst. The mechanisms of catalyst deactivation were analyzed by the methods of elemental analysis, nitrogen adsorption-desorption, thermogravimetry-mass spectrometry (TG-MS) technology, X-ray photoelectron spectroscopy (XPS) and high resolution transmission electron microscopy (HRTEM). The results demonstrated that PAHs had little effect on the activity of catalyst at the beginning of operation, during which the reaction temperature was increased by only 1 — 4 ℃. However, the existence of PAHs significantly accelerated the deactivation of catalyst and weakened the stability of catalyst. This phenomenon could be explained by that the catalyst deactivation is not only related to the formation of carbon deposit, but also is closely related to the loss of pore volume and the decrease of Ni-W-S phase ratio after adding PAHs. |
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| Keywords: | ultra-low sulfur diesel catalyst deactivation polycyclic aromatic hydrocarbons |
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