Effect of Porous Structure and Acidity of ZSM-5/SBA-15 Catalyst on 1,3,5-Triisopropylbenzene Cracking Catalytic Activity

  • J Nanosci Nanotechnol. 2018 Feb 1;18(2):1396-1402. doi: 10.1166/jnn.2018.14200.
Tran Quang Vinh  1 ,  Le Thi Hoai Nam  1 ,  Nguyen Thi Nhiem  1 ,  Pham Minh Duc  1 ,  Nguyen Thi Thu Trang  2 ,  Do Trung Hieu  3
Affiliations
  • 1. Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, 10000, Vietnam.
  • 2. Institute of Environmental Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, 10000, Vietnam.
  • 3. Department of Petroleum Chemistry, Faculty of Chemistry, Hanoi University of Science, Vietnam, 19 Le Thanh Tong Street, Hoan Kiem District, Hanoi, 10000, Vietnam.
PMID: 29448598 DOI: 10.1166/jnn.2018.14200
Abstract

ZSM-5/SBA-15 composite Materials with different acidities and mesoporous system formations were successfully synthesized by three-step method. The catalysts were characterized by XRD, HR-TEM, BET, EDX and TPD-NH3 methods. It showed that the Si/Al molar ratio had effect on the formation and property of Materials. Among synthesized catalysts with the different Si/Al molar ratios of 30 (HZSC-30), 50 (HZSC-50), 70 (HZSC-70), HZSC-50 catalyst had better mesoporous system formation and acidity. These properties helped this catalyst to have higher catalytic activity in 1,3,5-triisopropylbenzene cracking reaction than Other studied catalysts in term of higher benzene product yield. In comparison to HZSM-5 microporous material that had the similar Si/Al molar ratio of 50, it showed that the formation of mesopore system of HZSC-50 catalyst had a major improvement on the cracking catalytic activity.

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