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The use of transient methods to probe the kinetics of the fischer‐tropsch synthesis on ruthenium part i: Methane transient
Author(s) -
Mcgenity P. M.,
Shang S. B.,
Kenney C. N.,
Patterson B. W.
Publication year - 1992
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.5450700615
Subject(s) - ruthenium , carbon monoxide , methane , fischer–tropsch process , kinetics , dissociation (chemistry) , syngas , chemistry , catalysis , chemical kinetics , oxide , chemical engineering , organic chemistry , selectivity , physics , engineering , quantum mechanics
The kinetics of methane formation during the Fischer‐Tropsch Synthesis (FTS) were investigated both experimentally and theoretically. The catalysts employed were ruthenium supported on oxide supports, i.e. Al 2 O 3 , SiO 2 , MgO, ZrO 2 and TiO 2 . The experimental technique consisted of step changes between feed compositions. Four mechanistically based models were used to fit the transient experimental data. The results show that models based on direct dissociation of carbon monoxide perform better than those based on dissociation of carbon monoxide via a hydrogenated intermediate CH x O. It is concluded that the application of simplified elementary step modelling to transient responses in the Fischer‐Tropsch reaction provides a valuable tool in probing the kinetics of methane formation.