Zeolite y Mother Liquor Modified γ-Al2O3 with Enhanced Brönsted Acidity as Active Matrix to Improve the Performance of Fluid Catalytic Cracking Catalyst

Peng Bai*, Mengjie Xie, Ubong J. Etim, Wei Xing, Pingping Wu, Yanan Zhang, Bowen Liu, Youhe Wang, Ke Qiao, Zifeng Yan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

A new matrix material for the fluid catalytic cracking (FCC) catalyst was prepared using the zeolite Y mother liquor to modify the surface acidity of γ-Al2O3. The modified γ-Al2O3 was characterized using a variety of techniques, and the relationship between surface acidity and catalytic performances in the catalytic cracking of vacuum gas oil (VGO) was correlated. Characterization results showed that Brönsted acid sites derived mainly from isolated silanol groups, which increased on modified γ-Al2O3, while Lewis acid sites reduced dramatically after modification. Correlation results indicated that increased Brönsted acid sites effectively improved the conversion of VGO. In addition, new medium strong acid sites engendered at the interfaces of γ-Al2O3/amorphous silica-alumina or γ-Al2O3/zeolite Y played a critical role in determining the final product distribution, leading to yields of gasoline and liquefied petroleum gas higher than those of the pure γ-Al2O3 derived catalyst.

Original languageEnglish
Pages (from-to)1389-1398
Number of pages10
JournalIndustrial & Engineering Chemistry Research
Volume57
Issue number5
DOIs
StatePublished - 2018
Externally publishedYes

Fingerprint Dive into the research topics of 'Zeolite y Mother Liquor Modified γ-Al<sub>2</sub>O<sub>3</sub> with Enhanced Brönsted Acidity as Active Matrix to Improve the Performance of Fluid Catalytic Cracking Catalyst'. Together they form a unique fingerprint.

Cite this