Hydrogenation of substituted acrolein over alumina supported ruthenium catalysts

Coq, Bernard; Figuéras, F.; Moreau, Claude; Moreau, P.; Warawdekar, Mayukh G.

doi:10.1007/bf00810365

Cited by 44 publications

(18 citation statements)

References 19 publications

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“…As reported by literature, good hydrogenation properties are found on large Pt particles. Such behavior was also reported by Galvagno et al [24] for nitrobenzene hydrogenation over PtSn/nylon catalysts and Coq [29] for 2-butenal hydrogenation over Pt/Al 2 O 3 catalysts. This interpretation cannot be completely applied in the present work for these Pt particles did not change markedly in size when adding small amount of transition metal (see Table 1).…”

Section: Resultssupporting

confidence: 66%

“…Based on above experiment results, byproduct of diacetal is formed on the hydrogenation of CMA over PtM/ZrO 2 catalyst in ethanol at 343 K and 2.0 MPa. The formation of diacetals is observed when pure alcohol is used as solvent during the hydrogenation of a)b ethylenic aldehydes [16,25]. This reaction does not occur when a little water is present [26].…”

Section: Resultsmentioning

confidence: 94%

“…Suitable carriers such as carbon, clay, alumina, silica, zirconia, titania supported platinum catalysts have been reported for the hydrogenation of a, b-unsaturated aldehyde. Metals deposited on reducible oxide TiO 2 and ZrO 2 show better catalytic behavior on the selective hydrogenation of chloronitrobenzene and a, b-unsaturated aldehydes [16][17][18][19][20][21][22][23]. It is proposed that the strong metal/support interaction is responsible for this behavior.…”

Section: Introductionmentioning

confidence: 94%

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Selective Hydrogenation of Cinnamaldehyde over Pt/ZrO2 Catalyst Modified by Cr, Mn, Fe, Co and Ni

et al. 2006

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Hydrogenation properties of cinnamaldehyde (CMA) have been studied over Pt/ZrO 2 and PtM/ZrO 2 catalysts (M = Cr, Mn, Fe, Co and Ni) in ethanol at 343 K and 2.0 MPa. The effect of different content of Ni and base has also been investigated over PtNi/ZrO 2 catalyst. With introduction of transition metals to Pt/ZrO 2 catalyst shows a significant influence on the catalytic properties. PtCo/ZrO 2 catalysts show the best yield of cinnamyl alcohol (CMO), and PtNi/ZrO 2 catalyst shows good yield of hydrocinnamaldehyde (HCMA). In the presence of base solution, rate of the hydrogenation of CMA over PtNi/ZrO 2 (0.4 wt%) catalyst increases significantly and side reaction is remarkably inhibited. More bare metal atoms situated remote from the interface region on PtNi/ZrO 2 catalyst surface are the reason of good selectivity of HCMA for PtNi/ZrO 2 catalyst.

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Section: Resultssupporting

confidence: 66%

Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 94%

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Selective Hydrogenation of Cinnamaldehyde over Pt/ZrO2 Catalyst Modified by Cr, Mn, Fe, Co and Ni

et al. 2006

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“…High yields were recently reported using allyl alcohols, e.g., 2-propanol, as hydrogen donor [57][58][59][60] but not many studies were made in the gas phase, especially with gaseous hydrogen [51,53,54,61,62].…”

Section: Mesityl Oxide Hydrogenationmentioning

confidence: 98%

Reduction and catalytic behaviour of heterobimetallic copper–lanthanide oxides

Branco¹,

Ballivet‐Tkatchenko

Matos³

2008

Journal of Alloys and Compounds

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“…While there are reports focused on the Ni-based amorphous catalysts and their effect in the hydrogenation of olefinic compounds [17][18][19][20], Co based amorphous catalysts have not been studied in great detail [21]. It was reported that the selectivity to unsaturated alcohol is governed by the nature of supports [22,23], the presence of promoters [24], metal particle size [25] and the reaction medium [26].…”

Section: Introductionmentioning

confidence: 96%

Selective Hydrogenation of Cinnamaldehyde over Cobalt Supported on Alumina, Silica and Titania

et al. 2011

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The liquid phase selective hydrogenation of cinnamaldehyde has been investigated on cobalt (15 wt%) impregnated on alumina, silica and various phases of titania supports. The multiple reduction stages observed in the TPR studies suggest the presence of cobalt aluminate/ silicate/titanate species, and DRIFT spectra results seem to corroborate this observation. An optimum level of conversion and selectivity to cinnamyl alcohol was observed at 120°C and 10 kg/cm 2 hydrogen pressure. Co/TiO 2 exhibited a greater conversion (47.4%) and selectivity to cinnamyl alcohol (58%) than Co/Al 2 O 3 and Co/SiO 2, which may be attributed to the presence of TiO x (x \ 2) species on the catalyst surface and to the preferential adsorption of C=O on the catalyst surface. The stability of Co/TiO 2 was found to be better than Co/Al 2 O 3 and Co/SiO 2 . Between the various phases of titania (high surface area, anatase and rutile), the crystalline phases exhibited a better conversion and selectivity to cinnamyl alcohol, while the stability was found to be better for high surface area titania.

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Hydrogenation of substituted acrolein over alumina supported ruthenium catalysts

Cited by 44 publications

References 19 publications

Selective Hydrogenation of Cinnamaldehyde over Pt/ZrO2 Catalyst Modified by Cr, Mn, Fe, Co and Ni

Selective Hydrogenation of Cinnamaldehyde over Pt/ZrO2 Catalyst Modified by Cr, Mn, Fe, Co and Ni

Reduction and catalytic behaviour of heterobimetallic copper–lanthanide oxides

Selective Hydrogenation of Cinnamaldehyde over Cobalt Supported on Alumina, Silica and Titania

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