China Petroleum Processing & Petrochemical Technology ›› 2022, Vol. 24 ›› Issue (4): 98-107.

Previous Articles     Next Articles

Synthesis of Hierarchical Porous Fe2O3/Al2O3 Materials and Study on Catalytic Viscosity Reduction of Heavy Oil

Wu Peiyue; Ma Zhaofei; Yang Haiyang; Xiong Pan; Tan Dichen, Yan Xuemin   

  1. College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, Hubei 434023, PR China
  • Received:2022-02-22 Revised:2022-03-23 Online:2022-12-30 Published:2022-12-30
  • Contact: Zhao -FeiMA

Abstract: Fe2O3 nanoparticles were dispersed in the sol solution containing the aluminum component by the prophase doping method, then the composite catalyst hierarchical porous Fe2O3/Al2O3 materials (HPFA) were synthesized through a sol-gel method and phase separation via phase separation method. The performance of HPFA were compared with that of Fe2O3 nanoparticle catalyst. The structure of the composite catalyst was characterized by SEM, XRD and N2 adsorption and desorption. The results show that Fe2O3 nanoparticles could be loaded on porous skeletons to achieve uniform dispersion, avoid agglomeration, and improve the mechanical strength of porous materials significantly. The HPFA were then used as a hydrothermal cracking catalyst in the viscosity reduction process of Tuha thick oil, and the viscosity reduction was investigated. The viscosity reduction rate of HPFA was 81%, which was better than that of Fe2O3 nanoparticles (56%) and hierarchical porous Al2O3 materials (47%).

Key words: Fe2O3, initial doping method, hierarchical porous, Al2O3, heavy oil