SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2024, Vol. 76 ›› Issue (12): 201-210.DOI: 10.1016/j.cjche.2024.09.010

• • 上一篇    下一篇

NiMo-MMO catalyst derived from LDHs precursors toward the deep hydrogenation of pyrene

Yongliang Jia1,2,3,4,5, Boyang Bai1,6, Jing Wang1,2,3,4,5, Yueyi Wang1,2,3,4,5, Zheng Wang1,2,3,4,5, Xiaoxun Ma1,2,3,4,5   

  1. 1. School of Chemical Engineering, Northwest University, Xi'an 710069, China;
    2. International Scientific and Technological Cooperation Base of the Ministry of Science and Technology (MOST) for Clean Utilization of Hydrocarbon Resources, Xi'an 710069, China;
    3. Chemical Engineering Research Center of the Ministry of Education (MOE) for Advanced Use Technology of Shanbei Energy, Xi'an 710069, China;
    4. Shaanxi Research Center of Engineering Technology for Clean Coal Conversion, Xi'an 710069, China;
    5. Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi, Xi'an 710069, China;
    6. College of Chemistry and Materials Science, Weinan Normal University, Weinan 714000, China
  • 收稿日期:2024-03-13 修回日期:2024-09-20 接受日期:2024-09-22 出版日期:2024-12-28 发布日期:2024-10-11
  • 通讯作者: Xiaoxun Ma,E-mail:maxym@nwu.edu.cn
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (21536009), Science and Technology Plan Projects of Shaanxi Province (2017ZDCXL-GY-10-03), and National Natural Science Foundation of China (22008198) and the Special Scientific Research Plan Project of Education Ministry of Shaanxi Province, China (19JK0854).

NiMo-MMO catalyst derived from LDHs precursors toward the deep hydrogenation of pyrene

Yongliang Jia1,2,3,4,5, Boyang Bai1,6, Jing Wang1,2,3,4,5, Yueyi Wang1,2,3,4,5, Zheng Wang1,2,3,4,5, Xiaoxun Ma1,2,3,4,5   

  1. 1. School of Chemical Engineering, Northwest University, Xi'an 710069, China;
    2. International Scientific and Technological Cooperation Base of the Ministry of Science and Technology (MOST) for Clean Utilization of Hydrocarbon Resources, Xi'an 710069, China;
    3. Chemical Engineering Research Center of the Ministry of Education (MOE) for Advanced Use Technology of Shanbei Energy, Xi'an 710069, China;
    4. Shaanxi Research Center of Engineering Technology for Clean Coal Conversion, Xi'an 710069, China;
    5. Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi, Xi'an 710069, China;
    6. College of Chemistry and Materials Science, Weinan Normal University, Weinan 714000, China
  • Received:2024-03-13 Revised:2024-09-20 Accepted:2024-09-22 Online:2024-12-28 Published:2024-10-11
  • Contact: Xiaoxun Ma,E-mail:maxym@nwu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (21536009), Science and Technology Plan Projects of Shaanxi Province (2017ZDCXL-GY-10-03), and National Natural Science Foundation of China (22008198) and the Special Scientific Research Plan Project of Education Ministry of Shaanxi Province, China (19JK0854).

摘要: A series of Ni-based catalysts were prepared via structural topological transformation from the Ni@Al2O3 layered double hydroxides (LDHs) precursors, and applied for the deep catalytic hydrogenation saturation of pyrene in a high-pressure reactor. The pore structures, active species dispersion, surface morphology, amount and type of acid of the prepared catalysts were characterized by BET, XRD, SEM, TEM, XPS, SEM, NH3-TPD and Py-IR. We studied the influence of physicochemical properties of Ni-based catalysts on the regularity and mechanism of deep hydrogenation of pyrene. Meanwhile, the synergy between Ni and Mo, and the interaction between active metals and support were discussed to further reveal the constitutive relationship during the hydrogenation reaction of pyrene. The results of the evaluation of the catalytic hydrogenation of pyrene show that the as-prepared NiMo mixed metal oxide (MMO) catalyst showed excellent catalytic activity: ~95% pyrene conversion, 90.12% for the selectivity of deep hydrogenation products (hexahydropyrene, decahydropyrene and hexadecahydropyrene). It was expected that the successfully preparation and utilization of NiMo-MMO catalyst could provide a theoretical basis for the design of this kind of catalysts for deep catalytic hydrogenation of polycyclic aromatic hydrocarbons (PAHs).

关键词: Ni@Al2O3LDHs, Structural topological transformation method, NiMo-MMO catalyst, Pyrene deep hydrogenation

Abstract: A series of Ni-based catalysts were prepared via structural topological transformation from the Ni@Al2O3 layered double hydroxides (LDHs) precursors, and applied for the deep catalytic hydrogenation saturation of pyrene in a high-pressure reactor. The pore structures, active species dispersion, surface morphology, amount and type of acid of the prepared catalysts were characterized by BET, XRD, SEM, TEM, XPS, SEM, NH3-TPD and Py-IR. We studied the influence of physicochemical properties of Ni-based catalysts on the regularity and mechanism of deep hydrogenation of pyrene. Meanwhile, the synergy between Ni and Mo, and the interaction between active metals and support were discussed to further reveal the constitutive relationship during the hydrogenation reaction of pyrene. The results of the evaluation of the catalytic hydrogenation of pyrene show that the as-prepared NiMo mixed metal oxide (MMO) catalyst showed excellent catalytic activity: ~95% pyrene conversion, 90.12% for the selectivity of deep hydrogenation products (hexahydropyrene, decahydropyrene and hexadecahydropyrene). It was expected that the successfully preparation and utilization of NiMo-MMO catalyst could provide a theoretical basis for the design of this kind of catalysts for deep catalytic hydrogenation of polycyclic aromatic hydrocarbons (PAHs).

Key words: Ni@Al2O3LDHs, Structural topological transformation method, NiMo-MMO catalyst, Pyrene deep hydrogenation