Production of 5-hydroxymethylfurfural and levulinic acid from lignocellulosic biomass and catalytic upgradation

Li, Xiaoyun; Xu, Rui; Yang, Jiaxin; Nie, Shuangxi; Liú, Dan; Liu, Ying; Si, Chuanling

doi:10.1016/j.indcrop.2018.12.082

Cited by 212 publications

(79 citation statements)

References 147 publications

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“…Similarly, from the C5 sugars like xylose to LA, the process involves dehydration to form furfural, the further hydrogenation of furfural to furfuryl alcohol (FA), and the subsequent conversion of FA to LA or its esters via acid catalysis . In the process of conversion of either glucose or xylose to LA, acid catalysts play indispensable roles in the reaction network …”

Section: Introductionmentioning

confidence: 99%

Sulfated Zirconia with Different Crystal Phases for the Production of Ethyl Levulinate and 5‐Hydroxymethylfurfural

Shao

Sun

et al. 2019

Energy Tech

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Distinct crystal phases of an oxide affect the configuration of surface atoms, which might further affect coordination with sulfate during sulfonation for the preparation of SO42−/MxOy type of acid catalyst. Herein, such an effect is investigated with zirconia of the tetragonal or monoclinic phase as the model catalysts. The results show that sulfonation inhibits the transformation of zirconia from the tetragonal phase to the monoclinic phase, whereas the varied phase of zirconia also affects the bonding patterns of sulfate species with zirconia in sulfonation. The sulfated zirconia of monoclinic phase contains more abundant acidic sites and more Brønsted acid sites than that of sulfated zirconia of tetragonal phase. Consequently, the sulfated zirconia of monoclinic phase is more active than the sulfated zirconia of tetragonal phase for the conversion of furfuryl alcohol in ethanol and conversion of fructose in dimethyl sulfoxide, achieving the yield of ethyl levulinate of 96.4% and a high yield of 5‐hydroxymethylfurfural. The sulfated zirconia is not stable in protic solvent due to the leaching of sulfur species and the change in configurations of the sulfate species and the zirconium species, but in the aprotic solvent, they show good stability and recyclability.

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Section: Introductionmentioning

confidence: 99%

Sulfated Zirconia with Different Crystal Phases for the Production of Ethyl Levulinate and 5‐Hydroxymethylfurfural

Shao

Sun

et al. 2019

Energy Tech

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“…Sua obtenção se dá a partir da desidratação de carboidratos constituídos por 6 carbonos, sendo os principais a frutose, que é mais reativa e oferece maiores rendimentos, em média, do que outras hexoses, e a glicose (HEO et al, 2019;WANG et al, 2014). Ele pode ser convertido a diversos produtos químicos, como o 2,5-dimetiltetrahidrofurano (DMTHF), o 2,5dimetilfurano (DMF), o ácido levulínico, o álcool furfurílico, entre outros (LI et al, 2019;NGUYEN et al, 2016), sendo um importante precursor para produtos mais complexos utilizado nas indústrias farmacêuticas, agroquímicas, de cosméticos e de biocombustíveis, por exemplo (HEO et al, 2019). Sua produção a partir de biomassa lignocelulósica é conduzida a partir das etapas de pré-tratamento, para liberação dos polímeros de celulose da matriz lignocelulósica, e de hidrólise, para quebra das ligações entre os monômeros de glicose e consequente liberação dos mesmos no meio reacional.…”

Section: -Hidroximetilfurfural (Hmf)unclassified

Caracterização Química Do Bagaço De Malte E Avaliação Do Seu Potencial Para Obtenção De Produtos De Valor Agregado

Massardi

Massini

Silva

2020

jCEC

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O bagaço de malte é o principal resíduo da indústria cervejeira. Frente a isso, surge a necessidade de avaliar diferentes formas de reaproveitamento deste material. O presente estudo teve como objetivos principais caracterizar a biomassa e avaliar as possibilidades para seu reaproveitamento como matéria-prima para produtos de valor agregado. Foram obtidos teores de 29,92% de hemiceluloses, 21,16% de proteínas, 20,80% de lignina total, 15,99% de celulose, 8,33% de extrativos e 3,76% de cinzas no material. A composição química encontrada possibilita diversas aplicações deste resíduo como matéria-prima para obtenção de produtos de maior valor agregado. Estas aplicações estão relacionadas aos altos teores de fibras lignocelulósicas e de proteínas, sendo as principais: produção de etanol de segunda geração, de carvão hidrotérmico, de ácido lático, de HMF e de produtos para nutrição humana.

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“…Monomer and polymer production from renewable feedstocks has become a relevant research target with the aim of providing more environmental friendly solutions to the actual fossil-based market [1][2][3][4][5][6]. In this framework, 5-(hydroxymethyl)furfural (HMF) is recognized as an ideal platform molecule to develop different green products, since it can be obtained via acid-catalyzed dehydration of biomass-derived sugars [7][8][9], and, in turn, it can be converted into a wide range of different high added value chemicals [10][11][12][13]. Among the HMF products, 2,5-furandicarboxylic acid (FDCA, Scheme 1) has been identified as one of the most interesting [14], since it can be considered as the bioderived counterpart of terephthalic acid for the production of polyesters [15], such as polyethylene 2,5-furandicarboxylate First attempts to industrially convert HMF to FDCA relied on the technologies developed for terephthalic acid production [18].…”

Section: Introductionmentioning

confidence: 99%

Pd/Au Based Catalyst Immobilization in Polymeric Nanofibrous Membranes via Electrospinning for the Selective Oxidation of 5-Hydroxymethylfurfural

et al. 2020

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Innovative nanofibrous membranes based on Pd/Au catalysts immobilized via electrospinning onto different polymers were engineered and tested in the selective oxidation of 5-(hydroxymethyl)furfural in an aqueous phase. The type of polymer and the method used to insert the active phases in the membrane were demonstrated to have a significant effect on catalytic performance. The hydrophilicity and the glass transition temperature of the polymeric component are key factors for producing active and selective materials. Nylon-based membranes loaded with unsupported metal nanoparticles were demonstrated to be more efficient than polyacrylonitrile-based membranes, displaying good stability and leading to high yield in 2,5-furandicarboxylic acid. These results underline the promising potential of large-scale applications of electrospinning for the preparation of catalytic nanofibrous membranes to be used in processes for the conversion of renewable molecules.

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Production of 5-hydroxymethylfurfural and levulinic acid from lignocellulosic biomass and catalytic upgradation

Cited by 212 publications

References 147 publications

Sulfated Zirconia with Different Crystal Phases for the Production of Ethyl Levulinate and 5‐Hydroxymethylfurfural

Sulfated Zirconia with Different Crystal Phases for the Production of Ethyl Levulinate and 5‐Hydroxymethylfurfural

Caracterização Química Do Bagaço De Malte E Avaliação Do Seu Potencial Para Obtenção De Produtos De Valor Agregado

Pd/Au Based Catalyst Immobilization in Polymeric Nanofibrous Membranes via Electrospinning for the Selective Oxidation of 5-Hydroxymethylfurfural

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