Some important catalytic challenges in the bioethanol integrated biorefinery

Sousa-Aguiar, Eduardo Falabella; Appel, Lucia G.; Zonetti, Priscila C.; Fraga, Adriano do Couto; Bicudo, Alex Azevedo; Fonseca, Isabel

doi:10.1016/j.cattod.2014.02.016

Cited by 41 publications

(22 citation statements)

References 52 publications

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“…In this present scenario, the efficient use of lignocellulosic biomass and its conversion in high value products has become one of biggest challenges for both the academia and industry [1].…”

Section: Introductionmentioning

confidence: 99%

Screening of mono- and bi-functional catalysts for the one-pot conversion of cellobiose into sorbitol

et al. 2017

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Section: Introductionmentioning

confidence: 99%

Screening of mono- and bi-functional catalysts for the one-pot conversion of cellobiose into sorbitol

et al. 2017

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“…1,2 At present, for one of the most promising derivative, i.e. [7][8][9] In general, the hydrogenation reactions have a crucial role in the preparation of required products for biorefinery and for the flavor, fragrance and pharmaceutical industries, [10][11][12][13][14][15] which are obtained from highly oxygenated biomasses by lowering their O/H ratio. [3][4][5] At the contrary, a useful building block for chemical and pharmaceutical processes, 1-propanol, 6 could be obtained by hydrogenation of 2-propen-1-ol, which, in turn, can be produced by deoxydehydration of glycerol, a by-product of biodiesel production, available in large amounts and at relatively low costs.…”

Section: Introductionmentioning

confidence: 99%

Hydrogenation of allyl alcohols catalyzed by aqueous palladium and platinum nanoparticles

et al. 2015

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A series of Pd and Pt nanoparticles (NPs) was prepared starting from the corresponding metal ions and lignosulphonates; NPs were tested as catalysts for allyl alcohols hydrogenation in water at room temperature and pressure. All NPs were active with sharp differences in conversions and selectivites: Pt NPs formed mainly saturated alcohols, whereas Pd NPS were more active, but less selective, forming, in addition to saturated alcohols, also isomeric unsaturated alcohols and aldehydes, both saturated and unsaturated.. Results and DiscussionWe prepared a series of twelve NPs using two metals (Pt and Pd) and six water-soluble lignins: Kraft lignin (KrLig), ammonium lignosulphonate (AmLig), calcium (CaLig) and sodium (NaLig) lignosulphonates and the corresponding lowsugar ones (CaROLig and NaROLig); lignins, in water solution and at 80 °C, acted as both reducing agents for the metal ions, i.e. H 2 PtCl 6 and PdCl 2 , and as stabilizing agents for the formed

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“…Indeed, less sulfur is incorporated on the surface as the temperature increases. The influence of temperature on sulfur incorporation on sulfuric acidtreated carbons had already been observed (Sousa-Aguiar et al, 2014b). For the non-sulfonic acid sites, a different behavior was observed.…”

Section: Sulfonation and Generation Of Acid Sitesmentioning

confidence: 83%

The Role of Sulfonated Activated Carbons as Catalysts for the Hydrolysis of Cellobiose

Bermejo

Fraga

Sousa-Aguiar

2019

Braz. J. Chem. Eng.

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In this work the production of glucose via hydrolysis of cellobiose using sulfonated active carbons as catalysts was studied. Commercial carbons presenting different types of porous system (micropores and mesopores) have been treated with sulfuric acid at different temperatures, being characterized afterwards. Such carbons have been tested as catalysts in the reaction of cellobiose hydrolysis. The results indicated that the type and density of sulfonic sites are not the only parameters responsible for the activity of the catalysts. Indeed, the porosity of the catalysts also plays an important role in the determination of the catalyst activity.

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Some important catalytic challenges in the bioethanol integrated biorefinery

Cited by 41 publications

References 52 publications

Screening of mono- and bi-functional catalysts for the one-pot conversion of cellobiose into sorbitol

Screening of mono- and bi-functional catalysts for the one-pot conversion of cellobiose into sorbitol

Hydrogenation of allyl alcohols catalyzed by aqueous palladium and platinum nanoparticles

The Role of Sulfonated Activated Carbons as Catalysts for the Hydrolysis of Cellobiose

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