Catalytic properties of Mg-modified Ni-based hexaaluminate catalysts for CO2 reforming of methane to synthesis gas

CO 2 reforming of CH 4 over hexaaluminates LaNi x Mg 1− x Al 11 O 19+ δ and LaNi x Mg 0.8 Al 11.2− x O 19+ δ were studied. XRD analysis confirmed that modifier Ni as well as Mg was inlaid into the hexaaluminate lattice. Hexaaluminate LaNi x Mg 1− x Al 11 O 19+ δ (1.0 ≥ x ≥ 0.4) showed better catalyt...

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Published inReaction kinetics and catalysis letters Vol. 96; no. 1; pp. 65 - 73
Main Authors Wang, Junxia, Meng, Dawei, Wu, Xiuling, Hong, Jianhe, An, Daizong, Zhen, Kaiji
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.02.2009
Subjects
Catalysis
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Physical Chemistry
methane
reforming
CO
synthesis gas
Hexaaluminate
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Summary:CO 2 reforming of CH 4 over hexaaluminates LaNi x Mg 1− x Al 11 O 19+ δ and LaNi x Mg 0.8 Al 11.2− x O 19+ δ were studied. XRD analysis confirmed that modifier Ni as well as Mg was inlaid into the hexaaluminate lattice. Hexaaluminate LaNi x Mg 1− x Al 11 O 19+ δ (1.0 ≥ x ≥ 0.4) showed better catalytic activities and higher resistance to carbon deposition, which was attributed to their pure magnetoplumbite-type structure. For this reaction, x-value between 0.6 and 0.4 was the most suitable.
ISSN:0133-1736
1588-2837
DOI:10.1007/s11144-009-5362-6