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

doi:10.1021/acs.iecr.7b04243

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 journal › Article › peer-review

31 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 language	English
Pages (from-to)	1389-1398
Number of pages	10
Journal	Industrial and Engineering Chemistry Research
Volume	57
Issue number	5
DOIs	https://doi.org/10.1021/acs.iecr.7b04243
State	Published - 7 Feb 2018
Externally published	Yes

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title = "Zeolite y Mother Liquor Modified γ-Al2O3 with Enhanced Br{\"o}nsted Acidity as Active Matrix to Improve the Performance of Fluid Catalytic Cracking Catalyst",

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 Br{\"o}nsted 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 Br{\"o}nsted 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.",

author = "Peng Bai and Mengjie Xie and Etim, {Ubong J.} and Wei Xing and Pingping Wu and Yanan Zhang and Bowen Liu and Youhe Wang and Ke Qiao and Zifeng Yan",

note = "Publisher Copyright: {\textcopyright} 2018 American Chemical Society.",

year = "2018",

month = feb,

day = "7",

doi = "10.1021/acs.iecr.7b04243",

language = "英语",

volume = "57",

pages = "1389--1398",

journal = "Industrial and Engineering Chemistry Research",

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T1 - Zeolite y Mother Liquor Modified γ-Al2O3 with Enhanced Brönsted Acidity as Active Matrix to Improve the Performance of Fluid Catalytic Cracking Catalyst

AU - Bai, Peng

AU - Xie, Mengjie

AU - Etim, Ubong J.

AU - Xing, Wei

AU - Wu, Pingping

AU - Zhang, Yanan

AU - Liu, Bowen

AU - Wang, Youhe

AU - Qiao, Ke

AU - Yan, Zifeng

PY - 2018/2/7

Y1 - 2018/2/7

N2 - 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.

AB - 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.

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U2 - 10.1021/acs.iecr.7b04243

DO - 10.1021/acs.iecr.7b04243

M3 - 文章

AN - SCOPUS:85041946578

SN - 0888-5885

VL - 57

SP - 1389

EP - 1398

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 5

ER -

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

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