SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 45 ›› Issue (5): 41-50.DOI: 10.1016/j.cjche.2021.03.053

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Tuning the properties of Ni-based catalyst via La incorporation for efficient hydrogenation of petroleum resin

Qunhong Liu1, Jiangtao Yang2, Hongwei Zhang2, Hongming Sun1, Shuzheng Wu1, Bingqing Ge1, Rong Wang2, Pei Yuan1   

  1. 1 Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, China;
    2 College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
  • 收稿日期:2021-01-12 修回日期:2021-03-18 出版日期:2022-05-28 发布日期:2022-06-22
  • 通讯作者: Hongwei Zhang,E-mail:zhanghw@fzu.edu.cn;Pei Yuan,E-mail:yuanpei@fzu.edu.cn
  • 基金资助:
    This work was financially supported by the National Natural Science Foundation of China (22078064) and Natural Science Foundation of Fujian Province for Distinguished Young Scholar (2018J06002).

Tuning the properties of Ni-based catalyst via La incorporation for efficient hydrogenation of petroleum resin

Qunhong Liu1, Jiangtao Yang2, Hongwei Zhang2, Hongming Sun1, Shuzheng Wu1, Bingqing Ge1, Rong Wang2, Pei Yuan1   

  1. 1 Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou 350002, China;
    2 College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
  • Received:2021-01-12 Revised:2021-03-18 Online:2022-05-28 Published:2022-06-22
  • Contact: Hongwei Zhang,E-mail:zhanghw@fzu.edu.cn;Pei Yuan,E-mail:yuanpei@fzu.edu.cn
  • Supported by:
    This work was financially supported by the National Natural Science Foundation of China (22078064) and Natural Science Foundation of Fujian Province for Distinguished Young Scholar (2018J06002).

摘要: The hydrogenation of petroleum resin (PR) is an effective process to prepare high value-added hydrogenated PR (HPR). However, the preparation of non-noble metal-based catalysts with high catalytic activity for PR hydrogenation still remains a challenge. Herein, a La promoted Ni-based catalyst is reported through the thermal reduction of quaternary NiLaMgAl-layered double hydroxides (NiLaMgAl-LDHs). The incorporation of La is beneficial to the reduction and stability of Ni particles with reduced particle size, and the increased alkalinity effectively mitigates the breakage of molecular chains of PR. As a result, the La promoted Ni-based catalyst exhibits high catalytic activity and excellent stability for PR hydrogenation. A hydrogenation degree of 95.4% and 96.1% can be achieved for HC5PR and HC9PR with less reduced softening point, respectively. Notably, the hydrogenation degree still maintains at 92.7% even after 100 hours’ reaction, much better than that without La incorporation or prepared using conventional impregnation method.

关键词: Ni-based catalyst, Layered double hydroxides, Promotion effect, Petroleum resin, Hydrogenation

Abstract: The hydrogenation of petroleum resin (PR) is an effective process to prepare high value-added hydrogenated PR (HPR). However, the preparation of non-noble metal-based catalysts with high catalytic activity for PR hydrogenation still remains a challenge. Herein, a La promoted Ni-based catalyst is reported through the thermal reduction of quaternary NiLaMgAl-layered double hydroxides (NiLaMgAl-LDHs). The incorporation of La is beneficial to the reduction and stability of Ni particles with reduced particle size, and the increased alkalinity effectively mitigates the breakage of molecular chains of PR. As a result, the La promoted Ni-based catalyst exhibits high catalytic activity and excellent stability for PR hydrogenation. A hydrogenation degree of 95.4% and 96.1% can be achieved for HC5PR and HC9PR with less reduced softening point, respectively. Notably, the hydrogenation degree still maintains at 92.7% even after 100 hours’ reaction, much better than that without La incorporation or prepared using conventional impregnation method.

Key words: Ni-based catalyst, Layered double hydroxides, Promotion effect, Petroleum resin, Hydrogenation