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Effect of the preparation on the initial toxicity of supported nickel catalysts deactivated by thiophene
Author(s) -
Aguinaga Alicia,
Montes Mario,
Asua José M.
Publication year - 1991
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280520309
Subject(s) - cyclohexane , catalysis , nickel , thiophene , benzene , particle size , metal , metal particle , chemistry , dispersion (optics) , inorganic chemistry , materials science , organic chemistry , physics , optics
The influence of the type of support, metal dispersion and degree of reduction on the deactivation of a series of nickel catalysts by thiophene during the hydrogenation of benzene to cyclohexane was investigated. Catalysts with different degrees of metal‐support interaction were prepared. For the catalysts with a weak interaction, the initial toxicity decreased as the nickel particle size increased. On the other hand, neither the metallic particle size nor the type of support affected the initial toxicity for the catalysts with strong interaction. For these catalysts, the initial toxicity increased as the degree of reduction increased.