One-pot catalytic conversion of Nordic pulp media into green platform chemicals

Ahlkvist, Johan; Samikannu, Ajaikumar; Larsson, William; Mikkola, Jyri‐Pekka

doi:10.1016/j.apcata.2013.01.004

Cited by 19 publications

(12 citation statements)

References 28 publications

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“…This resin undergoes deactivation due to deposition of coke, but catalytic activity can be recovered. Amberlyst‐70 gives also good results with high LA yield into the transformation of wood pulp in LA under relatively mild condition …”

Section: Production Of Levulinic Acidmentioning

confidence: 97%

“…Amberlyst-70 gives also good results with high LA yield into the transformation of wood pulp in LA under relatively mild condition. 57 Currently, the semi-commercial LA production is obtained by the Biofine process due to the yield obtained, around 70-80 mol%, using dilute sulfuric acid as catalyst. 58 The principal drawback of this process lies in its inefficient separation and recovery of the levulinic acid.…”

Section: Production Of Levulinic Acidmentioning

confidence: 99%

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Role of ion‐exchange resins as catalyst in the reaction‐network of transformation of biomass into biofuels

Ramírez

Bringué

Iborra

et al. 2017

J of Chemical Tech & Biotech

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The use of acidic ion exchange resins in the transformation of biomass into biofuels is revised and their potential application is presented. Relationships between morphology and structure of resins and their catalytic activity for some existing reactions of the transformation network from sugars to biofuels are observed. In the synthesis of 5‐hydroxymethyfurfural and levulinic acid, catalytic activity of resins increases when the crosslinking content is decreased for both macroreticular and gel‐type resins. Gel‐type resins with low crosslinking were found to be the most suitable resins for direct esterification of levulinic acid with linear alcohols. However, for the alcoholysis of furfuryl alcohol, macroreticular resins are better than gel‐type ones. Deactivation probably due to humins formation is the main drawback for industrial application. © 2017 Society of Chemical Industry

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Section: Production Of Levulinic Acidmentioning

confidence: 97%

Section: Production Of Levulinic Acidmentioning

confidence: 99%

Role of ion‐exchange resins as catalyst in the reaction‐network of transformation of biomass into biofuels

Ramírez

Bringué

Iborra

et al. 2017

J of Chemical Tech & Biotech

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“…The nitrogen physisorption (in accordance to the B.E.T. method) confirmed a specific surface area in the range of 36 m 2 g -1 [14][15][16][17].…”

Section: Methodsmentioning

confidence: 99%

Heterogeneously catalyzed conversion of nordic pulp to levulinic and formic acids

Ahlkvist

Wärnå

Salmi

et al. 2016

Reac Kinet Mech Cat

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Herein, one-pot conversion of cellulose to platform chemicals, formic and levulinic acids was demonstrated. The catalyst selected was an affordable, acidic ion-exchange resin, Amberlyst 70, whereas the cellulose used was sulfite cellulose delivered by a Swedish pulp mill. Furthermore, in an attempt to better understand the complex hydrolysis network of the polysaccharide, kinetic experiments were carried out to pinpoint the optimal reaction conditions with an initial substrate concentration of 0.7-6.0 wt% and a temperature range of 180-200°C. Higher temperatures could not be used due to the limitations in the thermal stability of the catalyst. Overall, maximum theoretical yields of 59 and 68 mol% were obtained for formic and levulinic acid, respectively. The parameters allowing for the best performance were reaction temperature of 180°C and initial cellulose concentration of 0.7 wt%. After studying the behavior of the system, a simplified reaction network in line with a mechanistic approach was developed and found to follow first order reaction kinetics. A satisfactory fit of the model to the experimental data was achieved (97.8 % degree of explanation). The catalyst chosen exhibited good mechanical strength under the experimental conditions and thus, a route providing green platform chemicals from soft wood pulp from coniferous trees (mixture of Scots Pine and Norway Spruce) was demonstrated.

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“…This FA synthetic method produces vast amounts of (NH 4 ) 2 SO 4 as a non-renewable waste. Recently, it has been found that FA can be obtained from woody biomass [15][16][17][18][19][20][21][22][23][24]. We also reported selective FA synthesis from sugars, using reusable precious metal-free heterogeneous catalyst and aqueous hydrogen peroxide (H 2 O 2 ) as an oxidant, where utilization efficiency of H 2 O 2 was found extremely high, at~100% [24].…”

Section: Introductionmentioning

confidence: 96%

Formic Acid as a Hydrogen Source for the Additive-Free Reduction of Aromatic Carbonyl and Nitrile Compounds at Reusable Supported Pd Catalysts

et al. 2020

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One-pot catalytic conversion of Nordic pulp media into green platform chemicals

Cited by 19 publications

References 28 publications

Role of ion‐exchange resins as catalyst in the reaction‐network of transformation of biomass into biofuels

Role of ion‐exchange resins as catalyst in the reaction‐network of transformation of biomass into biofuels

Heterogeneously catalyzed conversion of nordic pulp to levulinic and formic acids

Formic Acid as a Hydrogen Source for the Additive-Free Reduction of Aromatic Carbonyl and Nitrile Compounds at Reusable Supported Pd Catalysts

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