Ni catalysts with different promoters supported on zeolite for dry reforming of methane

Handle URI:
http://hdl.handle.net/10754/560376
Title:
Ni catalysts with different promoters supported on zeolite for dry reforming of methane
Authors:
Alotaibi, Raja; Alenazey, Feraih; Alotaibi, Faisal; Wei, Nini; Al-Fatesh, Ahmed; Fakeeha, Anis
Abstract:
Dry reforming of methane (DRM) is considered a high endothermic reaction with operating temperatures between 700 and 1000 °C to achieve high equilibrium conversion of CH4 and CO2 to the syngas (H2 and CO). The conventional catalysts used for DRM are Ni-based catalysts. However, many of these catalysts suffer from the short longevity due to carbon deposition. This study aims to evaluate the effect of La and Ca as promoters for Ni-based catalysts supported on two different zeolite supports, ZL (A) (BET surface area = 925 m2/g, SiO2/Al2O3 mol ratio = 5.1), and ZL (B) (BET surface area = 730 m2/g, SiO2/Al2O3 mol ratio = 12), for DRM. The physicochemical properties of the prepared catalysts were characterized with XRD, BET, TEM and TGA. These catalysts were tested for DRM in a microtubular reactor at reaction conditions of 700 °C. The catalyst activity results show that the catalysts Ni/ZL (B) and Ca-Ni/ZL (B) give the highest methane conversion (60 %) with less time on stream stability compared with promoted Ni on ZL (A). In contrast, La-containing catalysts, La-Ni/ZL (B), show more time on stream stability with minimum carbon content for the spent catalyst indicating the enhancement of the promoters to the Ni/ZL (A) and (B), but with less catalytic activity performance in terms of methane and carbon dioxide conversions due to rapid catalyst deactivation.
KAUST Department:
Imaging and Characterization Core Lab
Citation:
Ni catalysts with different promoters supported on zeolite for dry reforming of methane 2015 Applied Petrochemical Research
Journal:
Applied Petrochemical Research
Issue Date:
8-Jul-2015
DOI:
10.1007/s13203-015-0117-y
Type:
Article
ISSN:
2190-5525; 2190-5533
Additional Links:
http://link.springer.com/10.1007/s13203-015-0117-y
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab

Full metadata record

DC FieldValue Language
dc.contributor.authorAlotaibi, Rajaen
dc.contributor.authorAlenazey, Feraihen
dc.contributor.authorAlotaibi, Faisalen
dc.contributor.authorWei, Ninien
dc.contributor.authorAl-Fatesh, Ahmeden
dc.contributor.authorFakeeha, Anisen
dc.date.accessioned2015-07-14T11:57:36Zen
dc.date.available2015-07-14T11:57:36Zen
dc.date.issued2015-07-08en
dc.identifier.citationNi catalysts with different promoters supported on zeolite for dry reforming of methane 2015 Applied Petrochemical Researchen
dc.identifier.issn2190-5525en
dc.identifier.issn2190-5533en
dc.identifier.doi10.1007/s13203-015-0117-yen
dc.identifier.urihttp://hdl.handle.net/10754/560376en
dc.description.abstractDry reforming of methane (DRM) is considered a high endothermic reaction with operating temperatures between 700 and 1000 °C to achieve high equilibrium conversion of CH4 and CO2 to the syngas (H2 and CO). The conventional catalysts used for DRM are Ni-based catalysts. However, many of these catalysts suffer from the short longevity due to carbon deposition. This study aims to evaluate the effect of La and Ca as promoters for Ni-based catalysts supported on two different zeolite supports, ZL (A) (BET surface area = 925 m2/g, SiO2/Al2O3 mol ratio = 5.1), and ZL (B) (BET surface area = 730 m2/g, SiO2/Al2O3 mol ratio = 12), for DRM. The physicochemical properties of the prepared catalysts were characterized with XRD, BET, TEM and TGA. These catalysts were tested for DRM in a microtubular reactor at reaction conditions of 700 °C. The catalyst activity results show that the catalysts Ni/ZL (B) and Ca-Ni/ZL (B) give the highest methane conversion (60 %) with less time on stream stability compared with promoted Ni on ZL (A). In contrast, La-containing catalysts, La-Ni/ZL (B), show more time on stream stability with minimum carbon content for the spent catalyst indicating the enhancement of the promoters to the Ni/ZL (A) and (B), but with less catalytic activity performance in terms of methane and carbon dioxide conversions due to rapid catalyst deactivation.en
dc.relation.urlhttp://link.springer.com/10.1007/s13203-015-0117-yen
dc.rightsThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.en
dc.subjectSyngas productionen
dc.subjectDry reforming of methaneen
dc.subjectZeolite supportsen
dc.titleNi catalysts with different promoters supported on zeolite for dry reforming of methaneen
dc.typeArticleen
dc.contributor.departmentImaging and Characterization Core Laben
dc.identifier.journalApplied Petrochemical Researchen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionKing Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, KSAen
dc.contributor.institutionKing Saud University, Riyadh, KSAen
kaust.authorWei, Ninien
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.