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

被引：33

作者：

Raj, K. Joseph Antony ^{[1
]}

Prakash, M. G. ^{[1
]}

Elangovan, T. ^{[1
]}

Viswanathan, B. ^{[1
]}

机构：

[1] Indian Inst Technol Madras, Natl Ctr Catalysis Res, Madras 600036, Tamil Nadu, India

来源：

CATALYSIS LETTERS | 2012年 / 142卷 / 01期

关键词：

Selective hydrogenation; Cobalt supported catalysts; Cinnamaldehyde; Cinnamyl alcohol; SUPERCRITICAL CARBON-DIOXIDE; AMORPHOUS ALLOY CATALYST; ALPHA; BETA-UNSATURATED ALDEHYDES; CINNAMYL ALCOHOL; ACROLEIN HYDROGENATION; GLUCOSE HYDROGENATION; PARTICLE-SIZE;

D O I：

10.1007/s10562-011-0693-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 degrees C and 10 kg/cm(2) hydrogen pressure. Co/TiO2 exhibited a greater conversion (47.4%) and selectivity to cinnamyl alcohol (58%) than Co/Al2O3 and Co/SiO2, which may be attributed to the presence of TiOx (x < 2) species on the catalyst surface and to the preferential adsorption of C=O on the catalyst surface. The stability of Co/TiO2 was found to be better than Co/Al2O3 and Co/SiO2. 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.

引用

页码：87 / 94

页数：8

共 27 条

[1] The selective formation of unsaturated alcohols by hydrogenation of α,β-unsaturated aldehydes in supercritical carbon dioxide using unpromoted Pt/Al2O3 catalyst [J].

Bhanage, BM ;

Ikushima, Y ;

Shirai, M ;

Arai, M .

CATALYSIS LETTERS, 1999, 62 (2-4) :175-177

[2] Steric effects in the selective hydrogenation of cinnamaldehyde to cinnamyl alcohol using an Ir/C catalyst [J].

Breen, JP ;

Burch, R ;

Gomez-Lopez, J ;

Griffin, K ;

Hayes, M .

APPLIED CATALYSIS A-GENERAL, 2004, 268 (1-2) :267-274

[3] Chemical preparation and characterization of metal-metalloid ultrafine amorphous alloy particles [J].

Chen, Y .

CATALYSIS TODAY, 1998, 44 (1-4) :3-16

[4] Selective hydrogenation of α,β-unsaturated aldehydes and other C=O and C=C bonds containing compounds [J].

Claus, P .

TOPICS IN CATALYSIS, 1998, 5 (1-4) :51-62

[5] HYDROGENATION OF SUBSTITUTED ACROLEIN OVER ALUMINA-SUPPORTED RUTHENIUM CATALYSTS [J].

COQ, B ;

FIGUERAS, F ;

MOREAU, C ;

MOREAU, P ;

WARAWDEKAR, M .

CATALYSIS LETTERS, 1993, 22 (03) :189-195

[6] HYDROGENATION OF ALPHA, BETA-UNSATURATED CARBONYLS - ACROLEIN HYDROGENATION ON GROUP-VIII METAL-CATALYSTS [J].

COQ, B ;

FIGUERAS, F ;

GENESTE, P ;

MOREAU, C ;

MOREAU, P ;

WARAWDEKAR, M .

JOURNAL OF MOLECULAR CATALYSIS, 1993, 78 (02) :211-226

[7]

Furniss B.S., 1989, VOGELS TXB PRACTICAL, V4th

[8] Selective hydrogenation of α,β-unsaturated aldehydes [J].

Gallezot, P ;

Richard, D .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1998, 40 (1-2) :81-126

[9] HYDROGENATION OF CINNAMALDEHYDE OVER RU/C CATALYSTS - EFFECT OF RU PARTICLE-SIZE [J].

GALVAGNO, S ;

CAPANNELLI, G ;

NERI, G ;

DONATO, A ;

PIETROPAOLO, R .

JOURNAL OF MOLECULAR CATALYSIS, 1991, 64 (02) :237-246

[10]

Galvagno S, 1993, CATAL LETT, V17, P130

← 1 2 3 →