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Dynamics of active sites transformation in HDS‐HDA catalyst
Author(s) -
Ostrovskii N. M.,
Gulyaev K. S.,
Reutova O. A.,
Startsev A. N.
Publication year - 1996
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450740617
Subject(s) - hydrogenolysis , catalysis , sulfide , sulfur , benzene , chemistry , transformation (genetics) , steady state (chemistry) , active site , photochemistry , organic chemistry , biochemistry , gene
Benzene hydrogenation in steady‐state and unsteady‐state regimes over sulfide Ni‐W/γ‐Al 2 O 3 catalyst is studied. The mechanism and dynamic model of hydrogenation and hydrogenolysis active sites transformation are proposed. The reactions were shown to be quasi steady‐state ones with slow poisoning of both hydrogenation and hydrogenolysis active sites by the formation of intermediate surface compounds of sulfur. The dynamic behavior was described by the proposed model with sufficient accuracy.