Preparation of hierarchical y zeolite catalysts for improved performance in the fluid catalytic cracking of residues

  • Vu Xuan Hoan
  • Ngo Thuy Phuong
  • Tran Van Tri
  • Dinh Duc Manh
  • Dang Thanh Tung
  • Vu Duy Hung
  • Tran Thi Nhu Mai
  • Oliver Busse
  • Jan J. Weigan
Keywords: Cracking catalyst, hierarchical zeolite, FCC, gasoline, Dung Quat refinery


The results of preparation and catalytic evaluation of hierarchical Y zeolite catalysts in the catalytic cracking of residues from Dung Quat refinery were reported in this paper. The hierarchical Y zeolite prepared by optimised acid-base treatments (0,1 M EDTA and 0,1 M
NaOH) and stabilised by ion exchange with lanthanum and ammonium ions exhibited a large mesoporous surface area of ca.140 m2/g, pore size distribution centred at ca.14 nm and improved acidity (2474 μmol NH3/g). A prototype industrial cracking catalyst (DMQ-Y) was formulated from the hierarchical Y zeolite, and its performance was assessed on a SCT-MAT (short-contact-time microactivity test) unit licensed by Grace. The steamed DMQ-Y catalyst exhibited a conversion of ca. 74 wt.% and yields of gasoline and propylene of ca. 48 wt.% and ca. 7 wt.% respectively. Compared to the commercial, analogous FCC catalyst (GRX-3, Grace), DMQ-Y increased the yield of propylene by 2 wt.%. These findings suggested that the presence of mesoporosity in the hierarchical Y zeolite on the one hand enhanced the cracking of bottoms into valuable products, on the other hand it suppressed undesired secondary transformation of formed products, enabling a superior yield of propylene.


E.T.C. Vogt and B.M. Weckhuysen, “Fluid catalytic cracking: Recent developments on the grand old lady of zeolite catalysis”, Chemical Society Reviews, Vol. 44, pp. 7342 - 7370, 2015. DOI: 10.1039/C5CS00376H.

Rui Feng, Ke Qiao, You-he Wang, and Zi-feng Yan, “Perspective on FCC catalyst in China”, Applied Petrochemical Research, Vol. 3, pp. 63 - 70, 2013. DOI: 10.1007/s13203-013-0030-1.

Danny Verboekend, Nicolas Nuttens, Roel Locus, Joost Van Aelst, P. Verolme, Johan Groen, Javier PérezRamírez, and Bert F. Sels, “Synthesis, characterisation, and catalytic evaluation of hierarchical faujasite zeolites: Milestones, challenges, and future directions”, Chemical Society Reviews, Vol. 45, No. 12, pp. 3331 - 3352, 2016. DOI: 10.1039/c5cs00520e.

Kunhao Li, Julia Valla, and Javier Garcia-Martinez, “Realizing the commercial potential of hierarchical zeolites: New opportunities in catalytic cracking”, ChemCatChem, Vol. 6, No. 1, pp. 46 - 66, 2014. DOI: 10.1002/cctc.201300345.

Javier García-Martínez, Marvin Johnson, Julia Valla, Kunhao Li, and Jackie Y. Ying, “Mesostructured zeolite Y-high hydrothermal stability and superior FCC catalytic performance”, Catalysis Science and Technology, Vol. 2, No. 5, pp. 987 - 994, 2012. DOI: 10.1039/C2CY00309K.

Xuan Hoan Vu, Mathias S. Marschall, Van Tri Tran, Thuy Phuong Ngo, Thanh Tung Dang, Duc Manh Dinh, Thi Kim Thoa Dao, Oliver Busse, and Jan J.Weigand, “Enhanced thermal stability of hierarchical Y zeolites obtained by acid and subsequent base treatments”, Journal of Physics and Chemistry of Solids, Vol. 152, No. 2, 2021. DOI: 10.1016/j.jpcs.2021.109962.

Koichi Sato, Yoichi Nishimura, Nobuyuki Matsubayashi, Motoyasu Imamura, and Hiromichi

Shimada, “Structural changes of Y zeolites during ion exchange treatment: Effects of Si/Al ratio of the starting NaY”, Microporous and Mesoporous Materials, Vol. 59, No. 2 - 3, pp. 133 - 146, 2003. DOI: 10.1016/S1387-1811(03)00305-6.

Javier García-Martínez, Kunhao Li, and Gautham Krishnaiah, “A mesostructured Y zeolite as a superior FCC catalyst - from lab to refinery”, Chemical Communication, Vol. 48, No. 97, pp. 11841 - 11843, 2012. DOI: 10.1039/c2cc35659g.

How to Cite
Hoan, V. X., Phuong, N. T., Tri, T. V., Manh, D. D., Tung, D. T., Hung, V. D., Mai, T. T. N., Busse, O., & Weigan, J. J. (2021). Preparation of hierarchical y zeolite catalysts for improved performance in the fluid catalytic cracking of residues. Petrovietnam Journal, 8, 35-42.

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