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Preparation, Characterization, and Catalytic Properties of Clay-Based Nickel Catalysts for Methane Reforming

✍ Scribed by Shaobin Wang; H.Y. Zhu; G.Q.(Max) Lu


Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
118 KB
Volume
204
Category
Article
ISSN
0021-9797

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✦ Synopsis


Naturally occurring clays and pillared clays are used as supports of nickel catalysts for the methane reforming reaction with carbon dioxide to synthesis gas. The structural and textural characteristics of the supports and catalysts are systematically examined by N2 adsorption/desorption and X-ray diffraction (XRD) techniques. It is found that the pore structures and surface properties of supports greatly affect the catalytic activities of the catalysts prepared. The catalysts supported on the mesoporous clays or pillared clays are obviously superior to those on microporous supports because the mesoporous supports are highly thermal stable compared to the microporous ones. It is found that introducing lanthanum to the supports can improve the catalyst basicity and thus enhance the catalytic activities of these catalysts. Deactivation of catalysts prepared and factors influencing their stability are also discussed. Copyright 1998 Academic Press.


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