Microwave-assisted one-pot conversion of agro-industrial wastes into levulinic acid: An alternate approach

Maiti, Sampa; Gallastegui, Gorka; Suresh, G.; Pachapur, Vinayak Laxman; Brar, Satinder Kaur; Bihan, Yann Le; Drogui, Patrick; Buelna, Gerardo; Verma, Mausam P.; Galvez‐Cloutier, Rosa

doi:10.1016/j.biortech.2018.06.012

Cited by 31 publications

(8 citation statements)

References 28 publications

(42 reference statements)

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“…Ren et al (2013) in their model study on the production of levulinic acid from microcrystalline cellulose using [C 3 SO 3 Hmim]HSO 4 as a catalyst reported a yield of 44.5% [46]. Maiti et al (2018) used acid catalysis with HCl and microwave radiation in the production of levulinic acid from agro-industrial wastes. They reported, as in the present study, a high efficiency of conversion of carbohydrates to levulinic acid with the use of microwave radiation [47].…”

Section: Raw Materialsmentioning

confidence: 99%

“…Maiti et al (2018) used acid catalysis with HCl and microwave radiation in the production of levulinic acid from agro-industrial wastes. They reported, as in the present study, a high efficiency of conversion of carbohydrates to levulinic acid with the use of microwave radiation [47]. The analysis of the available literature data as well as the results of the present study clearly indicate that the use of waste raw materials not tested so far must be combined with a careful optimization of process parameters.…”

Section: Raw Materialsmentioning

confidence: 99%

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Microwave-Assisted One-Step Conversion of Wood Wastes into Levulinic Acid

Kłosowski¹,

Mikulski²,

Menka³

2019

Catalysts

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This study aimed to evaluate the use of softwood and hardwood waste for the production of levulinic acid by one-stage conversion using microwave radiation combined with acid catalysis. The analysis demonstrated that the type and concentration of the acid used, the concentration of biomass in the reaction mixture and pressure value had the greatest impact on the yield of levulinic acid. The highest efficiency of carbohydrate conversion to levulinic acid, regardless of the type of raw material, was achieved using a pressure of 225 PSI and sulfuric acid as a catalyst. Maximum yield from biomass, ca. 16.5% for cherry wood chips and ca. 25% for pine chips, was obtained using sulfuric acid at a concentration of 1% v/v and 2% v/v, respectively, for the following process parameters: Exposure time 20 min, biomass concentration 3.3%, and the pressure of 225 PSI. The ratio of actual yield to theoretical yield was high: 64.7% ± 4.5% for pine chips and 43.4% ± 1.0% for cherry wood chips. High efficiency of the presented method of biomass conversion to levulinic acid indicates the possibility of its use for waste management in the wood processing industry. High concentration of levulinic acid in the post-reaction mixture allows for cost-effective extraction and purification of the compound.

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Section: Raw Materialsmentioning

confidence: 99%

Section: Raw Materialsmentioning

confidence: 99%

Microwave-Assisted One-Step Conversion of Wood Wastes into Levulinic Acid

Kłosowski¹,

Mikulski²,

Menka³

2019

Catalysts

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“…Levulinic acid comprises two functional groups, ketone and carboxylate, acting as highly reactive electrophiles for a nucleophilic attack [11]. Because of those functional groups' high reactivity, LA can undergo esterification, oxidation-reduction, substitution, and condensation [12]. The nature of the ketone and carboxylate contained in LA makes it one of the top bio-based chemicals that can be converted into various other compounds, such as gammavalerolactone [5], 2-methyl tetrahydrofuran [13], diphenolic acid [14], and deltaaminolevulinic acid [15].…”

Section: Introductionmentioning

confidence: 99%

Reaction Kinetics of Levulinic Acid Synthesis from Glucose Using Bronsted Acid Catalyst

Toif

Hidayat

Rochmadi

et al. 2021

Bull. Chem. React. Eng. Catal.

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Glucose is one of the primary derivative products from lignocellulosic biomass, which is abundantly available. Glucose has excellent potential to be converted into valuable compounds such as ethanol, sorbitol, gluconic acid, and levulinic acid (LA). Levulinic acid is an exceptionally promising green platform chemical. It comprises two functional groups, ketone and carboxylate, acting as highly reactive electrophiles for a nucleophilic attack. Therefore, it has extensive applications, including fuel additives, raw materials for the pharmaceutical industry, and cosmetics. This study reports the reaction kinetics of LA synthesis from glucose catalyzed by hydrochloric acid (HCl), a Bronsted acid, that was carried out under a wide range of operating conditions; i.e. the temperature of 140–180 °C, catalyst concentration of 0.5–1.5 M, and initial glucose concentration of 0.1–0.5 M. The highest LA yield of 48.34 % was able to be obtained from an initial glucose concentration of 0.1 M and by using 1 M HCl at 180 °C. The experimental results show that the Bronsted acid-catalyzed reaction pathway consists of glucose decomposition to levoglucosan (LG), conversion of LG to 5-hydroxymethylfurfural (HMF), and rehydration of HMF to LA. The experimental data yields a good fitting by assuming a first-order reaction model. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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“…Levulinic acid or gamma-ketovaleric acid is composed of two functional groups, ketone and carboxylate groups which can act as highly reactive electrophiles for nucleophilic attack [11]. Because of those functional groups' high reactivity, LA can undergo esterification, oxidation-reduction, substitution, and condensation [12]. The nature of the ketone and carboxylate contained in LA makes it one of the top bio-based chemicals that can be converted into various other compounds, such as gamma-valerolactone [5], 2-methyl tetrahydrofuran [13], diphenolic acid [14], and delta-aminolevulinic acid [15].…”

Section: Introductionmentioning

confidence: 99%

Reaction Kinetics of Levulinic Acid Synthesis from Glucose Using Bronsted Acid Catalyst

Toif

Hidayat

Rochmadi

et al. 2021

Preprint

View full text Add to dashboard Cite

Glucose is the primary derivative of lignocellulosic biomass, which is abundantly available. Glucose has excellent potential to be converted into valuable compounds such as ethanol, sorbitol, gluconic acid, and levulinic acid (LA). Levulinic acid is a very promising green platform chemical. It is composed of two functional groups, ketone and carboxylate groups which can act as highly reactive electrophiles for nucleophilic attack so it has extensive applications, including fuel additives, raw materials for the pharmaceutical industry, and cosmetics. The reaction kinetics of LA synthesis from glucose using hydrochloric acid catalyst (bronsted acid) were studied in a wide range of operating conditions, i.e., temperature of 140-180 oC, catalyst concentration of 0.5-1.5 M, and initial glucose concentration of 0.1-0.5 M. The highest LA yield is 48.34 %wt at 0.1 M initial glucose concentration, 1 M HCl, and temperature of 180 oC. The experimental results show that the bronsted acid catalyst's reaction pathway consists of glucose decomposition to levoglucosan (LG), conversion of LG to 5-hydroxymethylfurfural (HMF), and rehydration of HMF to LA. The experimental data yields a good fitting by assuming a first-order reaction model.

show abstract

Microwave-assisted one-pot conversion of agro-industrial wastes into levulinic acid: An alternate approach

Cited by 31 publications

References 28 publications

Microwave-Assisted One-Step Conversion of Wood Wastes into Levulinic Acid

Microwave-Assisted One-Step Conversion of Wood Wastes into Levulinic Acid

Reaction Kinetics of Levulinic Acid Synthesis from Glucose Using Bronsted Acid Catalyst

Reaction Kinetics of Levulinic Acid Synthesis from Glucose Using Bronsted Acid Catalyst

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