MEASUREMENT OF LIQUID-PHASE MULTICOMPONENT ADSORPTION IN A SYNZYME PARTIAL OXIDATION CATALYST

Citation
R. Claessens et Gv. Baron, MEASUREMENT OF LIQUID-PHASE MULTICOMPONENT ADSORPTION IN A SYNZYME PARTIAL OXIDATION CATALYST, Chemical Engineering Science, 51(10), 1996, pp. 1869-1878
Citations number
17
Categorie Soggetti
Engineering, Chemical
ISSN journal
00092509
Volume
51
Issue
10
Year of publication
1996
Pages
1869 - 1878
Database
ISI
SICI code
0009-2509(1996)51:10<1869:MOLMAI>2.0.ZU;2-V
Abstract
Adsorption properties were determined by liquid phase chromatography f or a new type of partial oxidation catalyst: an Fe-Phthalocyanine comp lex synthesized in a NaY zeolite. In the case of partial oxidation of cyclohexane to cyclohexanol and cyclohexanone with t-butylhydroperoxid e, diffusion does not limit the reaction. The partition coefficients a nd limited multicomponent equilibrium data are extracted from perturba tion liquid chromatography measurements for all components in the reac tion mixture. Highly selective adsorption of polar compounds on the co mplex determines the concentrations on the active site, and hence the reaction rates. Changes in Si/Al ratio of the zeolite framework has on ly a limited influence. Performance of such catalysts can then be expl ained on the basis of the adsorption data.