ISSN:
1572-879X
Keywords:
Diffusion controlled hydrogenation
;
crotonaldehyde hydrogenation
;
rhuthenium catalyzed hydrogenation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The activity and selectivity in gas-phase hydrogenation of the unsaturated aldehyde 3-methyl crotonaldehyde (UAL) over zeolite-supported Ru was found to depend markedly on the partial pressures of the two reactants in the gas phase, with the rate increasing as the ratio $$P_{UAL} /P_{H_2 }$$ decreased. Anomalously low apparent activation energies were found compared to the same reaction over Ru/SiO2, and secondary reactions to produce the totally hydrogenated product occurred much more readily in the zeolite-supported Ru. These observations led to the suggestion that these reactions were under diffusion control.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00764225
