A kinetic study of the liquid-phase hydrogenation of citral on Au/TiO2 and Pt-Sn/TiO2 thin films in capillary microreactors

L.N. Protasova; E. Rebrov; H.E. Skelton; A.E.H. Wheatley; J.C. Schouten

doi:10.1016/j.apcata.2011.03.021

A kinetic study of the liquid-phase hydrogenation of citral on Au/TiO2 and Pt-Sn/TiO2 thin films in capillary microreactors

L.N. Protasova, E. Rebrov, H.E. Skelton, A.E.H. Wheatley, J.C. Schouten

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

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%.

Original language	English
Pages (from-to)	12-21
Number of pages	10
Journal	Applied Catalysis. A, General
Volume	399
Issue number	1-2
DOIs	https://doi.org/10.1016/j.apcata.2011.03.021
Publication status	Published - 2011

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title = "A kinetic study of the liquid-phase hydrogenation of citral on Au/TiO2 and Pt-Sn/TiO2 thin films in capillary microreactors",

abstract = "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%.",

author = "L.N. Protasova and E. Rebrov and H.E. Skelton and A.E.H. Wheatley and J.C. Schouten",

year = "2011",

doi = "10.1016/j.apcata.2011.03.021",

language = "English",

volume = "399",

pages = "12--21",

journal = "Applied Catalysis. A, General",

issn = "0926-860X",

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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

SN - 0926-860X

VL - 399

SP - 12

EP - 21

JO - Applied Catalysis. A, General

JF - Applied Catalysis. A, General

IS - 1-2

ER -

A kinetic study of the liquid-phase hydrogenation of citral on Au/TiO2 and Pt-Sn/TiO2 thin films in capillary microreactors

Abstract

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