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Graphene oxide/mixed metal oxide hybrid materials for enhanced adsorption desulfurization of liquid hydrocarbon fuels

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Title: Graphene oxide/mixed metal oxide hybrid materials for enhanced adsorption desulfurization of liquid hydrocarbon fuels
Authors: Menzel, R
Iruretagoyena, D
Wang, Y
Bawaked, SM
Mokhtar, M
Al-Thabaiti, SA
Basahel, SN
Shaffer, MSP
Item Type: Journal Article
Abstract: A series of mixed metal oxides (MMOs) adsorbents (MgAl-, CuAl- and CoAl-MMOs) were supported on graphene oxide (GO) through in-situ precipitation of layered double hydroxides (LDHs) onto exfoliated GO, followed by thermal conversion. The study shows that GO is an excellent support for the LDH-derived MMOs due to matching geometry and charge complementarity, resulting in a strong hybrid effect, evidenced by significantly enhanced adsorption performance for the commercially important removal of heavy thiophenic compounds from hydrocarbons. Fundamental liquid-phase adsorption characteristics of the MMO/GO hybrids are quantified in terms of adsorption equilibrium isotherms, selectivity and adsorbent regenerability. Upon incorporation of as little as 5 wt% GO into the MMO material, the organosulfur uptake was increased by up to 170%, the recycling stability was markedly improved and pronounced selectivity for thiophenic organosulfurs over sulfur-free aromatic hydrocarbons was observed.
Issue Date: 12-May-2016
Date of Acceptance: 26-Apr-2016
URI: http://hdl.handle.net/10044/1/42877
DOI: https://dx.doi.org/10.1016/j.fuel.2016.04.125
ISSN: 0016-2361
Publisher: Elsevier
Start Page: 531
End Page: 536
Journal / Book Title: Fuel
Volume: 181
Copyright Statement: © 2016 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor/Funder: The Bio Nano Consulting
Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: 09-KAU-12B
EP/K01658X/1
Keywords: Science & Technology
Technology
Energy & Fuels
Engineering, Chemical
Engineering
Graphene oxide
Mixed metal oxide
Dibenzothiophene
Adsorption
Desulfurization
LAYERED DOUBLE HYDROXIDE
ORGANIC FRAMEWORKS
DIBENZOTHIOPHENE
REMOVAL
SULFUR
DEEP
CHALLENGES
AEROGELS
DIESEL
LIGHT
Energy
0904 Chemical Engineering
0913 Mechanical Engineering
0306 Physical Chemistry (Incl. Structural)
Publication Status: Published
Appears in Collections:Chemistry
Chemical Engineering
Faculty of Natural Sciences



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