TY - JOUR
T1 - A kinetic study of the liquid-phase hydrogenation of citral on Au/TiO2 and Pt-Sn/TiO2 thin films in capillary microreactors
AU - Protasova, L.N.
AU - Rebrov, E.
AU - Skelton, H.E.
AU - Wheatley, A.E.H.
AU - Schouten, J.C.
PY - 2011
Y1 - 2011
N2 - The kinetics of the liquid-phase hydrogenation of citral (3,7-dimethyl-2,6-octadienal) on Au/TiO2 and Pt–Sn/TiO2 thin films was studied in the temperature range 313–353 K and citral concentrations of 0.25–10.0 mol m-3. The thin films were deposited onto the inner walls of silica capillaries with internal diameter of 250 µm. First-order dependence on hydrogen pressure and near zero order dependence on citral concentration were observed for the initial rate of citral hydrogenation over the Pt–Sn/TiO2 and Au/TiO2 thin films. The Au/TiO2 catalyst prevents citronellal formation. The highest yield of unsaturated alcohols was obtained on the Pt–Sn/TiO2 film at a reaction temperature of 343 K, liquid residence time of 30 min and a citral conversion of 99%.
AB - The kinetics of the liquid-phase hydrogenation of citral (3,7-dimethyl-2,6-octadienal) on Au/TiO2 and Pt–Sn/TiO2 thin films was studied in the temperature range 313–353 K and citral concentrations of 0.25–10.0 mol m-3. The thin films were deposited onto the inner walls of silica capillaries with internal diameter of 250 µm. First-order dependence on hydrogen pressure and near zero order dependence on citral concentration were observed for the initial rate of citral hydrogenation over the Pt–Sn/TiO2 and Au/TiO2 thin films. The Au/TiO2 catalyst prevents citronellal formation. The highest yield of unsaturated alcohols was obtained on the Pt–Sn/TiO2 film at a reaction temperature of 343 K, liquid residence time of 30 min and a citral conversion of 99%.
U2 - 10.1016/j.apcata.2011.03.021
DO - 10.1016/j.apcata.2011.03.021
M3 - Article
VL - 399
SP - 12
EP - 21
JO - Applied Catalysis. A, General
JF - Applied Catalysis. A, General
SN - 0926-860X
IS - 1-2
ER -