Please use this identifier to cite or link to this item: https://scholarhub.balamand.edu.lb/handle/uob/6071
Title: Carbon Dioxide Reforming of Methane over Nickel-Supported Zeolites: A Screening Study
Authors: Bacariza, Carmen
Karam, Leila
Hassan, Nissrine El 
Lopes, José M.
Henriques, Carlos
Affiliations: Faculty of Engineering 
Keywords: Dry reforming of methane
Nickel
Structure–reactivity
Syngas production
Zeolites
Issue Date: 2022-07-07
Part of: Processes
Volume: 10
Issue: 7
Abstract: 
As the utilization of zeolites has become more frequent in the dry reforming of methane (DRM) reaction, more systematic studies are required to evaluate properly the influence of zeolites’ composition and framework type on the performance. Therefore, in this work, a step-by-step study was performed with the aim of analyzing the effects of Ni loading (5, 10 or 15 wt.% over USY(3) zeolite), Si/Al ratio (3, 15 or 38 on USY zeolites with 15 wt.% Ni) and framework type (USY, BEA, ZSM-5 or MOR for 15 wt.% Ni and Si/Al ratios of ≈40) on catalysts’ properties and performances. Increasing Ni loadings enhanced CH4 and CO2 conversions even though the catalysts’ stability was decreasing over the time. The variation of the Si/Al ratio on USY and the use of different zeolites had also a remarkable impact on the catalytic performance. For instance, at 500–600 °C reaction temperatures, the catalysts with higher basicity and reducibility exhibited the best results. However, when the temperature was further increased, catalysts presenting stronger metal–support interactions (nickel nanoparticles located in mesoporous cavities) displayed the highest conversions and stability over time. In brief, the use of 15 wt.% Ni and a USY zeolite, with both micro- and mesopores and high surface area, led to the best performances, mainly attributed to a favorable number of Ni0 active sites and the establishment of stronger metal–support interactions (due to nanoparticles confinement inside the mesopores).
URI: https://scholarhub.balamand.edu.lb/handle/uob/6071
DOI: 10.3390/pr10071331
Open URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Chemical Engineering

Show full item record

SCOPUSTM   
Citations

4
checked on Apr 13, 2024

Record view(s)

31
checked on Apr 17, 2024

Google ScholarTM

Check

Dimensions Altmetric

Dimensions Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.