scholarly journals One-pot conversion of biomass-derived xylose and furfural into levulinate esters via acid catalysis

2017 ◽  
Vol 53 (20) ◽  
pp. 2938-2941 ◽  
Author(s):  
Xun Hu ◽  
Shengjuan Jiang ◽  
Liping Wu ◽  
Shuai Wang ◽  
Chun-Zhu Li
Keyword(s):  
Acid Ester ◽  
Levulinic Acid ◽  
Acid Catalysis ◽  
Value Added ◽  
One Pot ◽  
Platform Chemicals

Via acid catalysis in dimethoxymethane/methanol, both C5 sugars and C6 sugars, derived from hemicellulose and cellulose, could be simultaneously converted into levulinic acid/ester, the platform chemicals for manufacturing value-added chemicals and biofuels.

scholarly journals Mini-Review on the Synthesis of Furfural and Levulinic Acid from Lignocellulosic Biomass

Processes ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 1234
Author(s):  
Zhiwei Jiang ◽  
Di Hu ◽  
Zhiyue Zhao ◽  
Zixiao Yi ◽  
Zuo Chen ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Lignocellulosic Biomass ◽  
Catalytic System ◽  
Levulinic Acid ◽  
Value Added ◽  
Environmental Issues ◽  
Alternative Route ◽  
Catalytic Systems ◽  
Renewable Biomass ◽  
Platform Chemicals

Efficient conversion of renewable biomass into value-added chemicals and biofuels is regarded as an alternative route to reduce our high dependence on fossil resources and the associated environmental issues. In this context, biomass-based furfural and levulinic acid (LA) platform chemicals are frequently utilized to synthesize various valuable chemicals and biofuels. In this review, the reaction mechanism and catalytic system developed for the generation of furfural and levulinic acid are summarized and compared. Special efforts are focused on the different catalytic systems for the synthesis of furfural and levulinic acid. The corresponding challenges and outlooks are also observed.

A structure–activity relationship study using DFT analysis of Bronsted–Lewis acidic ionic liquids and synergistic effect of dual acidity in one-pot conversion of glucose to value-added chemicals

2018 ◽  
Vol 42 (2) ◽  
pp. 1423-1430 ◽  
Author(s):  
Firdaus Parveen ◽  
Tanmoy Patra ◽  
Sreedevi Upadhyayula
Keyword(s):  
Ionic Liquids ◽  
Synergistic Effect ◽  
Formic Acid ◽  
Levulinic Acid ◽  
Value Added ◽  
One Pot ◽  
Structure Activity ◽  
Acidic Ionic Liquids ◽  
Commercially Important ◽  
Relationship Study

The catalytic conversion of biomass-derived carbohydrates to value-added chemicals, such as 5-hydroxymethylfurfural, levulinic acid, and formic acid, is a commercially important reaction and requires the use of both Lewis and Bronsted acids.

Intensified levulinic acid/ester production from cassava by one-pot cascade prehydrolysis and delignification

2017 ◽  
Vol 204 ◽  
pp. 1094-1100 ◽  
Author(s):  
Weijie Zhao ◽  
Yingwen Li ◽  
Changhua Song ◽  
Sijie Liu ◽  
Xuehui Li ◽  
...  
Keyword(s):  
Acid Ester ◽  
Levulinic Acid ◽  
One Pot

scholarly journals Biosynthesis of Commodity Chemicals From Oil Palm Empty Fruit Bunch Lignin

2021 ◽  
Vol 12 ◽  
Author(s):  
Tat-Ming Lo ◽  
In Young Hwang ◽  
Han-Saem Cho ◽  
Raissa Eka Fedora ◽  
Si Hui Chng ◽  
...  
Keyword(s):  
Oil Palm ◽  
Aromatic Compounds ◽  
Levulinic Acid ◽  
Agricultural Waste ◽  
Value Added ◽  
One Pot ◽  
Empty Fruit Bunches ◽  
Commodity Chemicals ◽  
Commercially Important ◽  
Derivatives Of

Lignin is one of the most abundant natural resources that can be exploited for the bioproduction of value-added commodity chemicals. Oil palm empty fruit bunches (OPEFBs), byproducts of palm oil production, are abundant lignocellulosic biomass but largely used for energy and regarded as waste. Pretreatment of OPEFB lignin can yield a mixture of aromatic compounds that can potentially serve as substrates to produce commercially important chemicals. However, separation of the mixture into desired individual substrates is required, which involves expensive steps that undermine the utility of OPEFB lignin. Here, we report successful engineering of microbial hosts that can directly utilize heterogeneous mixtures derived from OPEFB lignin to produce commodity chemicals, adipic acid and levulinic acid. Furthermore, the corresponding bioconversion pathway was placed under a genetic controller to autonomously activate the conversion process as the cells are fed with a depolymerized OPEFB lignin mixture. This study demonstrates a simple, one-pot biosynthesis approach that directly utilizes derivatives of agricultural waste to produce commodity chemicals.

scholarly journals Performance of 1-(3-Sulfopropyl)-3-Methylimidazolium Hydrogen Sulfate as a Catalyst for Hardwood Upgrading into Bio-Based Platform Chemicals

Catalysts ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 937
Author(s):  
Mar López ◽  
Sandra Rivas ◽  
Carlos Vila ◽  
Valentín Santos ◽  
Juan Carlos Parajó
Keyword(s):  
Levulinic Acid ◽  
Solid Phase ◽  
Aqueous Media ◽  
Hydrogen Sulfate ◽  
Hydrothermal Processing ◽  
Isobutyl Ketone ◽  
One Pot ◽  
Operational Conditions ◽  
Platform Chemicals ◽  
The One

The acidic ionic liquid 1-(3-sulfopropyl)-3-methylimidazolium hydrogen sulfate ([C3SO3Hmim]HSO4) was employed as a catalyst for manufacturing polysaccharide-derived products (soluble hemicellulose-derived saccharides, furans, and/or organic acids) from Eucalyptus globulus wood. Operation was performed in aqueous media supplemented with [C3SO3Hmim]HSO4 and methyl isobutyl ketone, following two different processing schemes: one-pot reaction or the solubilization of hemicelluloses by hydrothermal processing followed by the separate manufacture of the target compounds from both hemicellulose-derived saccharides and cellulose. Depending on the operational conditions, the one-pot reaction could be directed to the formation of furfural (at molar conversions up to 92.6%), levulinic acid (at molar conversions up to 45.8%), or mixtures of furfural and levulinic acid (at molar conversions up to 81.3% and 44.8%, respectively). In comparison, after hydrothermal processing, the liquid phase (containing hemicellulose-derived saccharides) yielded furfural at molar conversions near 78%, whereas levulinic acid was produced from the cellulose-enriched, solid phase at molar conversions up to 49.5%.

One-Pot Synthesis of Levulinic Acid/Ester from C5 Carbohydrates in a Methanol Medium

2013 ◽  
Vol 1 (12) ◽  
pp. 1593-1599 ◽  
Author(s):  
Xun Hu ◽  
Yao Song ◽  
Liping Wu ◽  
Mortaza Gholizadeh ◽  
Chun-Zhu Li
Keyword(s):  
Acid Ester ◽  
Levulinic Acid ◽  
One Pot ◽  
One Pot Synthesis ◽  
Methanol Medium

scholarly journals Sustainable Exploitation of Residual Cynara cardunculus L. to Levulinic Acid and n-Butyl Levulinate

Catalysts ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1082
Author(s):  
Anna Maria Raspolli Galletti ◽  
Domenico Licursi ◽  
Serena Ciorba ◽  
Nicola Di Fidio ◽  
Valentina Coccia ◽  
...  
Keyword(s):  
Levulinic Acid ◽  
Food Additives ◽  
Main Reaction ◽  
Cynara Cardunculus ◽  
One Pot ◽  
Direct Production ◽  
Platform Chemicals ◽  
Catalyst Type ◽  
Pharmaceutical Industries ◽  
The One

Hydrolysis and butanolysis of lignocellulosic biomass are efficient routes to produce two valuable bio-based platform chemicals, levulinic acid and n-butyl levulinate, which find increasing applications in the field of biofuels and for the synthesis of intermediates for chemical and pharmaceutical industries, food additives, surfactants, solvents and polymers. In this research, the acid-catalyzed hydrolysis of the waste residue of Cynara cardunculus L. (cardoon), remaining after seed removal for oil exploitation, was investigated. The cardoon residue was employed as-received and after a steam-explosion treatment which causes an enrichment in cellulose. The effects of the main reaction parameters, such as catalyst type and loading, reaction time, temperature and heating methodology, on the hydrolysis process were assessed. Levulinic acid molar yields up to about 50 mol % with levulinic acid concentrations of 62.1 g/L were reached. Moreover, the one-pot butanolysis of the steam-exploded cardoon with the bio-alcohol n-butanol was investigated, demonstrating the direct production of n-butyl levulinate with good yield, up to 42.5 mol %. These results demonstrate that such residual biomass represent a promising feedstock for the sustainable production of levulinic acid and n-butyl levulinate, opening the way to the complete exploitation of this crop.

scholarly journals CHEMICAL VALORIZATION OF CELLULOSE FROM LIGNOCELLULOSIC BIOMASS: A STEP TOWARDS SUSTAINABLE DEVELOPMENT

2021 ◽  
Vol 55 (3-4) ◽  
pp. 207-222
Author(s):  
RAMANDEEP KAUR ◽  
PUNEET KAUR
Keyword(s):  
Lignocellulosic Biomass ◽  
Levulinic Acid ◽  
Fossil Fuel ◽  
Value Added ◽  
Integrated Approach ◽  
Synthesis Methods ◽  
Platform Chemicals ◽  
Wide Range ◽  
Modified Cellulose ◽  
Value Added Products

"The potential of non-edible lignocellulosic biomass paves the path to sustainable economy. A large number of valueadded products have been synthesized by the fractionation of the major components of biomass, i.e. cellulose, hemicelluloses and lignin. Cellulose, the most abundant biopolymer on earth, serves as a starting material for the synthesis of various platform chemicals, such as sorbitol, 5- hydroxylmethylfurfural (HMF), dimethylfuran and levulinic acid. Hydrogels and aerogels fabricated from cellulose, modified cellulose or nanocellulose have proved valuable in a wide range of such as biomedical, food and technological applications. Cellulose-based polymers or bioplastics also emerged as an alternative to fossil fuel-based polymers. In this review, chemical paths to valorize plant cellulose for producing various value-added products have been discussed. The major challenge for valorization is the development of novel and green synthesis methods with simultaneous focus on an integrated approach."

Efficient palladium catalysis for the upgrading of itaconic and levulinic acid to 2-pyrrolidones followed by their vinylation into value-added monomers

2020 ◽  
Vol 22 (14) ◽  
pp. 4532-4540
Author(s):  
Yannik Louven ◽  
Moritz O. Haus ◽  
Marc Konrad ◽  
Jan P. Hofmann ◽  
Regina Palkovits
Keyword(s):  
Levulinic Acid ◽  
Palladium Catalysis ◽  
Value Added ◽  
Step Process ◽  
Platform Chemicals ◽  
Common Platform

Bio-based monomers are produced in a two-step process starting from common platform chemicals. The heterogeneously catalyzed reduction of bio-based acids into 2-pyrrolidones makes for a promising drop-in technology for the industrial NVP production.

Microwave-assisted green synthesis of levulinate esters as biofuel precursors using calix[4]arene as an organocatalyst under solvent-free conditions

2021 ◽  
Vol 5 (1) ◽  
pp. 108-111
Author(s):  
Gabriel Abranches Dias Castro ◽  
Sergio Antonio Fernandes
Keyword(s):  
Green Synthesis ◽  
Levulinic Acid ◽  
Acid Catalysis ◽  
Value Added ◽  
Solvent Free ◽  
Microwave Assisted ◽  
Solvent Free Conditions

Levulinic acid, one of the top 12 value-added chemicals, can be obtained by the transformation of biomass by acid catalysis.

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