Cleaner production: levulinic acid from rice husks

Bevilaqua, Daiane B.; Rambo, Magale Karine Diel; Rizzetti, Tiele Medianeira; Cardoso, André Luís Janzkovski; Martins, Ayrton F.

doi:10.1016/j.jclepro.2013.01.035

Cited by 90 publications

(47 citation statements)

References 20 publications

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“…Bevilaqua et al investigated the production of LA from rice husk using HCl as acid catalyst (Experiment 57, Table 4) [105]. Rice husk is a very abundant agricultural crop residue and approximately one ton of rice husk is left over for each four tons of rice produced.…”

Section: Homogeneous Mineral Acids and Salts In Watermentioning

confidence: 99%

New Frontiers in the Catalytic Synthesis of Levulinic Acid: From Sugars to Raw and Waste Biomass as Starting Feedstock

et al. 2016

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Levulinic acid (LA) is one of the top bio-based platform molecules that can be converted into many valuable chemicals. It can be produced by acid catalysis from renewable resources, such as sugars, lignocellulosic biomass and waste materials, attractive candidates due to their abundance and environmentally benign nature. The LA transition from niche product to mass-produced chemical, however, requires its production from sustainable biomass feedstocks at low costs, adopting environment-friendly techniques. This review is an up-to-date discussion of the literature on the several catalytic systems that have been developed to produce LA from the different substrates. Special attention has been paid to the recent advancements on starting materials, moving from simple sugars to raw and waste biomasses. This aspect is of paramount importance from a sustainability point of view, transforming wastes needing to be disposed into starting materials for value-added products. This review also discusses the strategies to exploit the solid residues always obtained in the LA production processes, in order to attain a circular economy approach.

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Section: Homogeneous Mineral Acids and Salts In Watermentioning

confidence: 99%

New Frontiers in the Catalytic Synthesis of Levulinic Acid: From Sugars to Raw and Waste Biomass as Starting Feedstock

et al. 2016

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“…According to a previous report [1], the glucose and fructose content of KWR was determined as 16.41 mg/g and 34.39 mg/g, respectively. The extraction process was carried out in a round-bottom flask containing 100 g KWR with 200 mL distilled water, equipped with a stirrer.…”

Section: Glucose and Fructose Extraction From Kwrmentioning

confidence: 99%

“…All samples were filtered through a 0.45 μm membrane syringe filter before HPLC analysis and started using a previously reported method [1]. The concentrations of glucose and fructose were obtained by a HPLC (LC-15C, Shimadzu, Suzhou, China) equipped with a C18 column (4.6 × 250 mm, 5 μm) at 303K and a refractive index detector (RID-10A, Shimadzu, Tokyo, Japan).…”

Section: Product Analysismentioning

confidence: 99%

“…Recently, the development of efficient approaches for the transformation of renewable sources into useful chemicals and fuels is an attractive research area because these technologies aim to conserve resources and create sustainable industrial practices [1]. As a promisingroute, conversion of the individual monomeric components like C6 or C5 sugars is currently available to make platform molecules with improved yields [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

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Facile and Low-Cost Preparation of Nb/Al Oxide Catalyst with High Performance for the Conversion of Kiwifruit Waste Residue to Levulinic Acid

et al. 2015

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Abstract:The kiwifruit industry is booming worldwide. As a result, a great deal of kiwifruit waste residue (KWR) containing monosaccharides is produced and discarded. This material shows great potential for the production of platform chemicals. In this study, a series of Nb/Al oxide catalysts were synthesized via a facile and low-cost coprecipitation method, and their structures were characterized using: thermal gravimetric analysis (TGA), XRD, FESEM, TEM, X-ray photoelectron spectroscopy (XPS), NH3-TPD, N2 adsorption-desorption, and FTIR-Pyridine adsorption. Experimental results of sugar-to-levulinic acid (LA) conversion revealed that the 20%Nb/Al oxide catalyst provided the highest catalytic performance and durability in terms of LA yield from fructose (74.2%) at 463 K after 10 min and from glucose (47.5%) at 473 K after 15 min. Notably, the 20% Nb/Al oxide catalyst with a 10% dosage is capable of converting kiwifruit waste residue to LA at 473 K after 10 min. In conclusion, the enhanced catalytic performance was obtained due to the high acidity, and large surface areaof Nb/Al oxide catalyst.

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“…of RH require a suitable destination. Apart from being rich in carbohydrates (37.1 % cellulose, 19.5 % hemicellulose, and 17.6 % lignin) [4], the RH can be readily converted into input chemical [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Building block itaconic acid from left-over biomass

Pedroso

Montipó

Mario

et al. 2016

Biomass Conv. Bioref.

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The use of rice husks for the sustainable production of the priority building block itaconic acid was studied under multivariate conditions. With the use of 3.4 % (v v −1 ) H 3 PO 4 , 145°C (48 bar), and 28-min hydrolysis time, 44.4 g sugar L −1 was produced with a yield of 266.4 mg sugar g −1 rice husks. Using 3.8 % (v v −1 ) HNO 3 , the best hydrolysis condition was 135°C (45 bar) and 35-min reaction time, when 42.0 g sugar L −1 was produced with a yield of 252.0 mg sugar g −1 rice husks. This is higher than the corresponding results of those obtained in the literature. The fermentation was conducted under optimized multivariate conditions, at 30°C, using phosphoric hydrolysate and an addition of 10 g L −1 yeast extract, pH 6.0 adjusted with CaO (s) and the use of Aspergillus terreus (ATCC 10020). Besides using no supplementation, the optimized experiment produced 1.9 g itaconic acid L −1 (yield of 49 mg g −1 sugar), similar results to that obtained with supplementation found in the literature for other kinds of lignocellulosic materials.

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Cleaner production: levulinic acid from rice husks

Cited by 90 publications

References 20 publications

New Frontiers in the Catalytic Synthesis of Levulinic Acid: From Sugars to Raw and Waste Biomass as Starting Feedstock

New Frontiers in the Catalytic Synthesis of Levulinic Acid: From Sugars to Raw and Waste Biomass as Starting Feedstock

Facile and Low-Cost Preparation of Nb/Al Oxide Catalyst with High Performance for the Conversion of Kiwifruit Waste Residue to Levulinic Acid

Building block itaconic acid from left-over biomass

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