Enhanced Catalytic Performance of the FCC Catalyst with an Alumina Matrix Modified by the Zeolite y Structure-Directing Agent

Mengjie Xie; Yifang Li; Ubong Jerome Etim; He Lou; Wei Xing; Pingping Wu; Xiaohe Liu; Peng Bai; Zifeng Yan

doi:10.1021/acs.iecr.8b04890

Enhanced Catalytic Performance of the FCC Catalyst with an Alumina Matrix Modified by the Zeolite y Structure-Directing Agent

Mengjie Xie, Yifang Li, Ubong Jerome Etim, He Lou, Wei Xing, Pingping Wu, Xiaohe Liu, Peng Bai^*, Zifeng Yan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The surface acid property of γ-Al₂O₃ has been modified by a zeolite Y structure-directing agent (SDA). Thus, modified γ-Al₂O₃ as a matrix material was used in fluid catalytic cracking (FCC) catalysts, and its performance of cracking vacuum gas oil (VGO) was evaluated. In comparsion with unmodified γ-Al₂O₃, the modified matrix material exhibited superior catalytic performance with heavy oil conversion increased by 5.64%, enhancing the gasoline yield by 2.19% and the LPG yield by 3.00%. Characterization results indicated that the zeolite Y SDA modification effectively introduced Si species into the framework of γ-Al₂O₃. The interaction between hydroxyl groups on silanol and Al-OH led to the formation of bridged hydroxyl groups (Si-OH-Al), which are the origin of medium-strength Brönsted acid sites on the modified alumina matrix accounting for the enhanced catalytic performance of FCC catalysts.

Original language	English
Pages (from-to)	5455-5463
Number of pages	9
Journal	Industrial and Engineering Chemistry Research
Volume	58
Issue number	14
DOIs	https://doi.org/10.1021/acs.iecr.8b04890
State	Published - 10 Apr 2019
Externally published	Yes

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@article{2d59532fb4064696a735e510b2cbed3e,

title = "Enhanced Catalytic Performance of the FCC Catalyst with an Alumina Matrix Modified by the Zeolite y Structure-Directing Agent",

abstract = "The surface acid property of γ-Al2O3 has been modified by a zeolite Y structure-directing agent (SDA). Thus, modified γ-Al2O3 as a matrix material was used in fluid catalytic cracking (FCC) catalysts, and its performance of cracking vacuum gas oil (VGO) was evaluated. In comparsion with unmodified γ-Al2O3, the modified matrix material exhibited superior catalytic performance with heavy oil conversion increased by 5.64%, enhancing the gasoline yield by 2.19% and the LPG yield by 3.00%. Characterization results indicated that the zeolite Y SDA modification effectively introduced Si species into the framework of γ-Al2O3. The interaction between hydroxyl groups on silanol and Al-OH led to the formation of bridged hydroxyl groups (Si-OH-Al), which are the origin of medium-strength Br{\"o}nsted acid sites on the modified alumina matrix accounting for the enhanced catalytic performance of FCC catalysts.",

author = "Mengjie Xie and Yifang Li and Etim, {Ubong Jerome} and He Lou and Wei Xing and Pingping Wu and Xiaohe Liu and Peng Bai and Zifeng Yan",

note = "Publisher Copyright: Copyright {\textcopyright} 2019 American Chemical Society.",

year = "2019",

month = apr,

day = "10",

doi = "10.1021/acs.iecr.8b04890",

language = "英语",

volume = "58",

pages = "5455--5463",

journal = "Industrial and Engineering Chemistry Research",

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T1 - Enhanced Catalytic Performance of the FCC Catalyst with an Alumina Matrix Modified by the Zeolite y Structure-Directing Agent

AU - Xie, Mengjie

AU - Li, Yifang

AU - Etim, Ubong Jerome

AU - Lou, He

AU - Xing, Wei

AU - Wu, Pingping

AU - Liu, Xiaohe

AU - Bai, Peng

AU - Yan, Zifeng

PY - 2019/4/10

Y1 - 2019/4/10

N2 - The surface acid property of γ-Al2O3 has been modified by a zeolite Y structure-directing agent (SDA). Thus, modified γ-Al2O3 as a matrix material was used in fluid catalytic cracking (FCC) catalysts, and its performance of cracking vacuum gas oil (VGO) was evaluated. In comparsion with unmodified γ-Al2O3, the modified matrix material exhibited superior catalytic performance with heavy oil conversion increased by 5.64%, enhancing the gasoline yield by 2.19% and the LPG yield by 3.00%. Characterization results indicated that the zeolite Y SDA modification effectively introduced Si species into the framework of γ-Al2O3. The interaction between hydroxyl groups on silanol and Al-OH led to the formation of bridged hydroxyl groups (Si-OH-Al), which are the origin of medium-strength Brönsted acid sites on the modified alumina matrix accounting for the enhanced catalytic performance of FCC catalysts.

AB - The surface acid property of γ-Al2O3 has been modified by a zeolite Y structure-directing agent (SDA). Thus, modified γ-Al2O3 as a matrix material was used in fluid catalytic cracking (FCC) catalysts, and its performance of cracking vacuum gas oil (VGO) was evaluated. In comparsion with unmodified γ-Al2O3, the modified matrix material exhibited superior catalytic performance with heavy oil conversion increased by 5.64%, enhancing the gasoline yield by 2.19% and the LPG yield by 3.00%. Characterization results indicated that the zeolite Y SDA modification effectively introduced Si species into the framework of γ-Al2O3. The interaction between hydroxyl groups on silanol and Al-OH led to the formation of bridged hydroxyl groups (Si-OH-Al), which are the origin of medium-strength Brönsted acid sites on the modified alumina matrix accounting for the enhanced catalytic performance of FCC catalysts.

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U2 - 10.1021/acs.iecr.8b04890

DO - 10.1021/acs.iecr.8b04890

M3 - 文章

AN - SCOPUS:85064268341

SN - 0888-5885

VL - 58

SP - 5455

EP - 5463

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 14

ER -

Enhanced Catalytic Performance of the FCC Catalyst with an Alumina Matrix Modified by the Zeolite y Structure-Directing Agent

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