Zeolite-graphene composite as support for molybdenum-based catalysts and their hydrodesulfurization performance

Islam Ali; Tawfik A. Saleh

doi:10.1016/j.apcata.2020.117542

Zeolite-graphene composite as support for molybdenum-based catalysts and their hydrodesulfurization performance

Islam Ali
, Tawfik A. Saleh^*

^*Corresponding author for this work

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

48 Scopus citations

Abstract

A composite of zeolite Y type -graphene as a support doped with molybdenum-cobalt and molybdenum-nickel (active phase and promoter) was synthesized and evaluated as hydrodesulfurization (HDS) catalysts. The ZGMoCo was found to have the ability to reduce the sulfur content by ≈98 % after a 5 h reaction time which is higher compared to the ZMoCo or ZMoNi. This activity can be ascribed to the improved surface area and better distribution of the active phases (molybdenum and cobalt or nickel) on the zeolite Y type -graphene surface. SEM images showed enhanced dispersion of the active phases on the support surface. As per the BET measurements, the surface area was improved due to the introduction of graphene to be 323.6 m²/g ZGMoCo compared to 257.3 m²/g ZMoCo; and 312.5 m²/g for ZGMoNi compared to 245.7 m²/g for ZMoNi. The work offers a convenient approach to prepare an effective HDS catalyst.

Original language	English
Article number	117542
Journal	Applied Catalysis A: General
Volume	598
DOIs	https://doi.org/10.1016/j.apcata.2020.117542
State	Published - 25 May 2020

Bibliographical note

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

Dibenzothiophene
Distribution
Graphene
Hydrodesulfurization
Zeolite

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology

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10.1016/j.apcata.2020.117542

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title = "Zeolite-graphene composite as support for molybdenum-based catalysts and their hydrodesulfurization performance",

abstract = "A composite of zeolite Y type -graphene as a support doped with molybdenum-cobalt and molybdenum-nickel (active phase and promoter) was synthesized and evaluated as hydrodesulfurization (HDS) catalysts. The ZGMoCo was found to have the ability to reduce the sulfur content by ≈98 \% after a 5 h reaction time which is higher compared to the ZMoCo or ZMoNi. This activity can be ascribed to the improved surface area and better distribution of the active phases (molybdenum and cobalt or nickel) on the zeolite Y type -graphene surface. SEM images showed enhanced dispersion of the active phases on the support surface. As per the BET measurements, the surface area was improved due to the introduction of graphene to be 323.6 m2/g ZGMoCo compared to 257.3 m2/g ZMoCo; and 312.5 m2/g for ZGMoNi compared to 245.7 m2/g for ZMoNi. The work offers a convenient approach to prepare an effective HDS catalyst.",

keywords = "Dibenzothiophene, Distribution, Graphene, Hydrodesulfurization, Zeolite",

author = "Islam Ali and Saleh, \{Tawfik A.\}",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = may,

day = "25",

doi = "10.1016/j.apcata.2020.117542",

language = "English",

volume = "598",

journal = "Applied Catalysis A: General",

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TY - JOUR

T1 - Zeolite-graphene composite as support for molybdenum-based catalysts and their hydrodesulfurization performance

AU - Ali, Islam

AU - Saleh, Tawfik A.

PY - 2020/5/25

Y1 - 2020/5/25

N2 - A composite of zeolite Y type -graphene as a support doped with molybdenum-cobalt and molybdenum-nickel (active phase and promoter) was synthesized and evaluated as hydrodesulfurization (HDS) catalysts. The ZGMoCo was found to have the ability to reduce the sulfur content by ≈98 % after a 5 h reaction time which is higher compared to the ZMoCo or ZMoNi. This activity can be ascribed to the improved surface area and better distribution of the active phases (molybdenum and cobalt or nickel) on the zeolite Y type -graphene surface. SEM images showed enhanced dispersion of the active phases on the support surface. As per the BET measurements, the surface area was improved due to the introduction of graphene to be 323.6 m2/g ZGMoCo compared to 257.3 m2/g ZMoCo; and 312.5 m2/g for ZGMoNi compared to 245.7 m2/g for ZMoNi. The work offers a convenient approach to prepare an effective HDS catalyst.

AB - A composite of zeolite Y type -graphene as a support doped with molybdenum-cobalt and molybdenum-nickel (active phase and promoter) was synthesized and evaluated as hydrodesulfurization (HDS) catalysts. The ZGMoCo was found to have the ability to reduce the sulfur content by ≈98 % after a 5 h reaction time which is higher compared to the ZMoCo or ZMoNi. This activity can be ascribed to the improved surface area and better distribution of the active phases (molybdenum and cobalt or nickel) on the zeolite Y type -graphene surface. SEM images showed enhanced dispersion of the active phases on the support surface. As per the BET measurements, the surface area was improved due to the introduction of graphene to be 323.6 m2/g ZGMoCo compared to 257.3 m2/g ZMoCo; and 312.5 m2/g for ZGMoNi compared to 245.7 m2/g for ZMoNi. The work offers a convenient approach to prepare an effective HDS catalyst.

KW - Dibenzothiophene

KW - Distribution

KW - Graphene

KW - Hydrodesulfurization

KW - Zeolite

UR - https://www.scopus.com/pages/publications/85083457570

U2 - 10.1016/j.apcata.2020.117542

DO - 10.1016/j.apcata.2020.117542

M3 - Article

AN - SCOPUS:85083457570

SN - 0926-860X

VL - 598

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

M1 - 117542

ER -

Zeolite-graphene composite as support for molybdenum-based catalysts and their hydrodesulfurization performance

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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