Contribution of Oxide Supports in Nickel-Based Catalytic Elimination of Greenhouse Gases and Generation of Syngas

Carbon dioxide and/or dry methane reforming serves as an effective pathway to mitigate these greenhouse gases. This work evaluates different oxide supports including alumina, Y-zeolite and H-ZSM-5 zeolite for the catalysis of dry reforming methane with Nickel (Ni). The composite catalysts were prepa...

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Autores principales: Wasim Ullah Khan, Mohammad Rizwan Khan, Rosa Busquets, Naushad Ahmad
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Lenguaje:EN
Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:4e1888effaa146db8f9805557226657f2021-11-11T16:03:02ZContribution of Oxide Supports in Nickel-Based Catalytic Elimination of Greenhouse Gases and Generation of Syngas10.3390/en142173241996-1073https://doaj.org/article/4e1888effaa146db8f9805557226657f2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7324https://doaj.org/toc/1996-1073Carbon dioxide and/or dry methane reforming serves as an effective pathway to mitigate these greenhouse gases. This work evaluates different oxide supports including alumina, Y-zeolite and H-ZSM-5 zeolite for the catalysis of dry reforming methane with Nickel (Ni). The composite catalysts were prepared by impregnating the supports with Ni (5%) and followed by calcination. The zeolite supported catalysts exhibited more reducibility and basicity compared to the alumina supported catalysts, this was assessed with temperature programmed reduction using hydrogen and desorption using carbon dioxide. The catalytic activity, in terms of CH<sub>4</sub> conversion, indicated that 5 wt% Ni supported on alumina exhibited higher CH<sub>4</sub> conversion (80.5%) than when supported on Y-zeolite (71.8%) or H-ZSM-5 (78.5%). In contrast, the H-ZSM-5 catalyst led to higher CO<sub>2</sub> conversion (87.3%) than Y-zeolite (68.4%) and alumina (83.9%) supported catalysts. The stability tests for 9 h time-on-stream showed that Ni supported with H-ZSM-5 had less deactivation (just 2%) due to carbon deposition. The characterization of spent catalysts using temperature programmed oxidation (O<sub>2</sub>-TPO), X-ray diffraction (XRD) and thermo-gravimetric analysis (TGA) revealed that carbon deposition was a main cause of deactivation and that it occurred in the lowest degree on the Ni H-ZSM-5 catalyst.Wasim Ullah KhanMohammad Rizwan KhanRosa BusquetsNaushad AhmadMDPI AGarticleCO<sub>2</sub>CH<sub>4</sub>stabilityH-ZSM-5carbon depositiongreenhouse gas reductionTechnologyTENEnergies, Vol 14, Iss 7324, p 7324 (2021)
institution DOAJ
collection DOAJ
language EN
topic CO<sub>2</sub>
CH<sub>4</sub>
stability
H-ZSM-5
carbon deposition
greenhouse gas reduction
Technology
T
spellingShingle CO<sub>2</sub>
CH<sub>4</sub>
stability
H-ZSM-5
carbon deposition
greenhouse gas reduction
Technology
T
Wasim Ullah Khan
Mohammad Rizwan Khan
Rosa Busquets
Naushad Ahmad
Contribution of Oxide Supports in Nickel-Based Catalytic Elimination of Greenhouse Gases and Generation of Syngas
description Carbon dioxide and/or dry methane reforming serves as an effective pathway to mitigate these greenhouse gases. This work evaluates different oxide supports including alumina, Y-zeolite and H-ZSM-5 zeolite for the catalysis of dry reforming methane with Nickel (Ni). The composite catalysts were prepared by impregnating the supports with Ni (5%) and followed by calcination. The zeolite supported catalysts exhibited more reducibility and basicity compared to the alumina supported catalysts, this was assessed with temperature programmed reduction using hydrogen and desorption using carbon dioxide. The catalytic activity, in terms of CH<sub>4</sub> conversion, indicated that 5 wt% Ni supported on alumina exhibited higher CH<sub>4</sub> conversion (80.5%) than when supported on Y-zeolite (71.8%) or H-ZSM-5 (78.5%). In contrast, the H-ZSM-5 catalyst led to higher CO<sub>2</sub> conversion (87.3%) than Y-zeolite (68.4%) and alumina (83.9%) supported catalysts. The stability tests for 9 h time-on-stream showed that Ni supported with H-ZSM-5 had less deactivation (just 2%) due to carbon deposition. The characterization of spent catalysts using temperature programmed oxidation (O<sub>2</sub>-TPO), X-ray diffraction (XRD) and thermo-gravimetric analysis (TGA) revealed that carbon deposition was a main cause of deactivation and that it occurred in the lowest degree on the Ni H-ZSM-5 catalyst.
format article
author Wasim Ullah Khan
Mohammad Rizwan Khan
Rosa Busquets
Naushad Ahmad
author_facet Wasim Ullah Khan
Mohammad Rizwan Khan
Rosa Busquets
Naushad Ahmad
author_sort Wasim Ullah Khan
title Contribution of Oxide Supports in Nickel-Based Catalytic Elimination of Greenhouse Gases and Generation of Syngas
title_short Contribution of Oxide Supports in Nickel-Based Catalytic Elimination of Greenhouse Gases and Generation of Syngas
title_full Contribution of Oxide Supports in Nickel-Based Catalytic Elimination of Greenhouse Gases and Generation of Syngas
title_fullStr Contribution of Oxide Supports in Nickel-Based Catalytic Elimination of Greenhouse Gases and Generation of Syngas
title_full_unstemmed Contribution of Oxide Supports in Nickel-Based Catalytic Elimination of Greenhouse Gases and Generation of Syngas
title_sort contribution of oxide supports in nickel-based catalytic elimination of greenhouse gases and generation of syngas
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/4e1888effaa146db8f9805557226657f
work_keys_str_mv AT wasimullahkhan contributionofoxidesupportsinnickelbasedcatalyticeliminationofgreenhousegasesandgenerationofsyngas
AT mohammadrizwankhan contributionofoxidesupportsinnickelbasedcatalyticeliminationofgreenhousegasesandgenerationofsyngas
AT rosabusquets contributionofoxidesupportsinnickelbasedcatalyticeliminationofgreenhousegasesandgenerationofsyngas
AT naushadahmad contributionofoxidesupportsinnickelbasedcatalyticeliminationofgreenhousegasesandgenerationofsyngas
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