Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Kinetics of the Homogeneous Catalytic Hydrogenation of Olefins in Supercritical Carbon Dioxide Using a Fluoroacrylate Copolymer
 

Summary: Kinetics of the Homogeneous Catalytic Hydrogenation of Olefins in
Supercritical Carbon Dioxide Using a Fluoroacrylate Copolymer
Grafted Rhodium Catalyst
Roberto Flores,
Zulema K. Lopez-Castillo,
Ibrahim Kani,
John P. Fackler, Jr.,
and Aydin Akgerman*,
Chemical Engineering Department, Texas A&M University, College Station, Texas 77843-3122, and Chemistry
Department, Texas A&M University, College Station, Texas 77843-3012
The kinetic studies on the hydrogenation of 1-octene and cyclohexene using a fluoroacrylate
copolymer grafted rhodium catalyst in supercritical carbon dioxide (scCO2) are reported. The
reactions were investigated at temperatures between 50 and 120 C, and pressures ranging
from 172 to 241 bar. The catalyst also deactivated at these reaction conditions. For the case of
1-octene, isomerization to (E)2-octene and (Z)2-octene also occurred as side reactions. To represent
the experimental data, a kinetic model was developed on the basis of reported studies about
hydrogenation and isomerization of olefins in conventional solvents. It was proposed that two
hydride catalytic species are formed during the kinetic cycle. Monohydride species promoted
the isomerization, and dihydride species catalyzed the hydrogenation. Deactivation of the catalyst
was attributed to the formation of an unsaturated olefin complex. Statistical methods were

  

Source: Abdou, Hanan E. - Department of Chemistry, Texas A&M University

 

Collections: Chemistry