Kinetics of glucose hydrogenation in a trickle-bed reactor

Déchamp, N.; Gamez, A.; Perrard, A.; Gallezot, P.

doi:10.1016/0920-5861(95)00019-c

Cited by 75 publications

(58 citation statements)

References 7 publications

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“…Besides Ru catalysts, Ni catalysts are also extensively considered for glucose hydrogenation. The E a values of glucose hydrogenation over Ni are determined to be in a range of 63-82 kJ/mol [106,107,111].…”

Section: Reaction Kineticsmentioning

confidence: 99%

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Mechanism and Kinetic Analysis of the Hydrogenolysis of Cellulose to Polyols

Wang

Pang

et al. 2016

Green Chemistry and Sustainable Technology

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The catalytic hydrogenolysis of cellulose to polyols represents an attractive process for biomass conversion to value-added products with a high atom economy. In the past decade, extensive studies have been conducted and promptly accumulated a rich knowledge in this field. In this chapter, we focus on the review of reaction mechanisms and kinetics after a brief description of the catalyst development for this process. In view of the different polyol products, the present review is mainly composed of two parts: cellulose conversion to sugar alcohols and cellulose hydrogenolysis to ethylene glycol and 1,2-propylene glycol. The reaction mechanisms are discussed and summarized to obtain general rules in terms of the specific performance of various catalysts. The reaction kinetics of cellulose hydrogenolysis are analyzed on the basis of the kinetics of the individual reaction steps and their correlations in the whole route covering in detail the reactions of cellulose hydrolysis, sugar hydrogenation, retro-aldol condensation, and sugar condensations. Finally, the prospective for the reaction mechanism and kinetics study of cellulose hydrogenolysis is presented.

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Section: Reaction Kineticsmentioning

confidence: 99%

“…2)[105][106][107][108][109][110][111]. Kapteijn et al carried out a detailed study on the reaction kinetics of d-glucose hydrogenation over a 5 % Ru/C catalyst at 373-403 K, 4.0-7.5 MPa H 2 , and glucose concentration of 0.56-1.39 mol/L[108].…”

mentioning

confidence: 99%

Mechanism and Kinetic Analysis of the Hydrogenolysis of Cellulose to Polyols

Wang

Pang

et al. 2016

Green Chemistry and Sustainable Technology

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“…Ni(NO 3 ) 2 , nickel acetylacetonate, ethylenediamine, tetraethyl orthosilicate, NH 4 OH solution and HPLC water were deliv- The used commercial supports were TiO 2 P25, Al 2 O 3 C (Degussa), silica gel large pore 58 micron, silica gel large pore 99.5% (Alfa Aesar), Black Pearls 2000 GP3755, Vulkan XC72R GP3759 (Cabot) and Ai (KataLeuna).…”

Section: Experimental Section Reagents and Supportsmentioning

confidence: 99%

“…Gallezot et al [3] studied Raney nickel promoted with molybdenum, chromium, iron and tin. The kinetics of the continuous glucose hydrogenation with a supported nickel catalyst in a trickle bed reactor was studied by De ¬ champ et al [4] But nickel has some disadvantages: the nickel leaches, resulting in a loss of activity and a high nickel content in the sorbitol solution. For use in food, medical and cosmetic applications, the nickel must be removed completely from the sorbitol, resulting in high additional costs.…”

Section: Introductionmentioning

confidence: 99%

Hydrogenation of Glucose to Sorbitol over Nickel and Ruthenium Catalysts

2003

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Hydrogenation of aqueous glucose solution was performed in batch and continuous reactors using supported nickel and ruthenium catalysts. Preparation methods were precipitation, impregnation, solgel and template syntheses, and SiO 2 , TiO 2 , Al 2 O 3 and carbon were used as support materials. A procedure for the one-step synthesis of templated metal on support catalysts was established. The influence of support material and preparation methods was studied and the results were compared with those of an industrial nickel catalyst. In a detailed study taking more than 1100 h time on stream we investigated the deactivation of the industrial catalyst and a supported ruthenium catalyst, and evaluated the deactivation mechanisms. As yet unpublished side products of the glucose hydrogenation were identified and a scheme of the reaction network was set up.

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“…Investigations were aimed at clarifying the deactivation mechanisms of Ru catalysts, determining the reaction kinetics in trickle-bed reactors and determining catalyst life [64,[69][70][71][72]. The main reasons for the deactivation of Ru catalysts were found to be physical changes of the catalyst support material as well catalyst poisoning by Fe, S and gluconic acid.…”

Section: Sorbit (1 Glucose + H 2 ( 1 Sorbit: Hydrogenation)mentioning

confidence: 99%

The Roll of Chemocatalysis in the Establishment of the Technology Platform “Renewable Resources”

Claus

Vogel

2008

Chem Eng & Technol

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The FRG has no economical access to crude oil. It is therefore an important future task to organize a post‐fossil sustainable era of material economy and to develop new processes based on alternative carbon sources. The change in raw material base is not a new experience for the chemical industry, it has always generated a wave of innovation and an economic boom. A precondition for this is to early develop scientific and technological bases for the new, yet age‐old raw material base biomass and to use the existing know‐how of petrochemistry, especially in the area of chemocatalysis.

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Kinetics of glucose hydrogenation in a trickle-bed reactor

Cited by 75 publications

References 7 publications

Mechanism and Kinetic Analysis of the Hydrogenolysis of Cellulose to Polyols

Mechanism and Kinetic Analysis of the Hydrogenolysis of Cellulose to Polyols

Hydrogenation of Glucose to Sorbitol over Nickel and Ruthenium Catalysts

The Roll of Chemocatalysis in the Establishment of the Technology Platform “Renewable Resources”

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