화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.118, 330-340, February, 2023
DOI10.1016/j.jiec.2022.11.018  Export Citation
Template-free hydrothermal synthesis of hollow alumina microspheres and its excellent catalytic properties for thiolation
WeiMing Wang, Shuai Peng†, XinTian Chen1, YingMing Chen1, Chuang Peng, Dong Zeng2, Jun Xiong, Hao Liu2, XiXian Yang3, and Ming Li†
  • Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, Wuhan Textile University, Wuhan, 430200, Hubei, PR China
  • 1College of Resource and Environmental Science, South-central University for Nationalities, Wuhan 430074, PR China
  • 2State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan, 430074, PR China
  • 3School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, PR China
E-mail:,
In view of the important industrial application value of alumina supports in the field of oil refining and reforming, it is of great significance to develop a simple and economical synthesis method for the hierarchical porous alumina. Herein, the hollow microsphere alumina was hydrothermally synthesized without template. The surface of the hollow microsphere alumina supports has a raised fluffy structure, the microsphere diameter is about 5 ~ 8 lm, and the thickness of the shell is about 1 µm. The morphology evolution process from solid microspheres to core–shell microspheres with spindle-shaped nanoclusters, and then to hollow fluffy microspheres with protruding surface was observed by investigating the effect of hydrothermal synthesis temperature on the morphology of microspheres. Because of its specific morphology and surface characteristics, the microsphere can better disperse the active component KW to prepare KW/Al2O3 catalyst and used in the thiolation to methyl mercaptan. Compared with our previously used catalysts prepared from commercial alumina, this KW/Al2O3 catalyst was not only able to greatly reduce the amount of active component, but also exhibited higher CH3SH selectivity. On the 10KW/Al catalyst, the CH3SH selectivity reached 66.2 % at 340 ℃, which was about 10 % higher than that of the previous commercial alumina catalyst. This work can provide theoretical basis and practical guidance for the reasonable design of new alumina support and high efficiency methyl mercaptan catalyst.
Keywords:Methanol;Alumina;Methyl mercaptan;CS2;KW/Al2O3;Thiolation
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