Integrated production of furfural and second-generation bioethanol from Eucalyptus wood residues: experimental results and process simulation

Bariani, Melissa; Cebreiros, Florencia; Guigou, Mairan; Cabrera, María Noel

doi:10.1007/s00226-022-01396-9

Cited by 6 publications

(1 citation statement)

References 49 publications

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“…Furfural has been identified as one of the key ‘green’ chemicals produced in the so-called lignocellulosic feedstock biorefinery. 147 Furfural is easily degraded into unwanted products in water. Biphasic systems with organic solvents as the extraction layer, such as MIBK/H 2 O and GVL/H 2 O systems, have been proven to enhance the furfural yield by minimizing undesired furfural degradation reactions.…”

Section: Future Research Outlookmentioning

confidence: 99%

Furfural production from lignocellulosic biomass: one-step and two-step strategies and techno-economic evaluation

Bao,

Du,

Liu

et al. 2024

Green Chem.

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Section: Future Research Outlookmentioning

confidence: 99%

Furfural production from lignocellulosic biomass: one-step and two-step strategies and techno-economic evaluation

Bao,

Du,

Liu

et al. 2024

Green Chem.

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Purification of xylosaccharides from eucalyptus residues for l‐lactic acid production by Weizmannia coagulans

Cabrera,

Vila,

Liguori

et al. 2024

Biofuels Bioprod Bioref

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In this work, phosphoric acid pretreatment (0.6% H3PO4, 160 °C, 40 min) of eucalyptus residues was performed to recover the hemicellulosic fraction for further conversion to l‐lactic acid by fermentation with Weizmannia coagulans DSM 2314 (formerly Bacillus coagulans). The hemicellulosic hydrolysate was composed of xylosaccharides 24.8 g L–1 (mainly xylose, 20.3 g L–1), acetic acid 7.8 g L–1, furfural 0.7 g L–1, and acid‐soluble lignin (ASL) 2.1 g L–1. It was subsequently purified by using anion exchange or adsorption resins. Different liquor‐to‐resin ratios were evaluated to obtain a high concentration of xylosaccharides in the eluate and thorough removal of components that inhibit lactic fermentation. The best performance was observed when using Amberlite‐XAD‐4 resin at a liquor‐to‐resin ratio of 3:1. An eluted hydrolysate was obtained, preserving 80% of the xylosaccharides and effectively removing almost all furfural, 90% of ASL, and 32% of acetic acid. Subsequently, l‐lactic acid production by W. coagulans DSM 2314 was evaluated using concentrated nondetoxified and detoxified hydrolysate obtained with a vacuum oven. For the nondetoxified hydrolysate, 12 g L–1 of l‐lactic acid was obtained after 48 h showing a yield of 0.56 glactic acid gsugar–1 and a xylose consumption of 62%. The detoxification of the liquor significantly improved the fermentation performance of W. coagulans, resulting in a concentration of 16 g L–1 of lactic acid after 24 h, with a yield of 0.73 glactic acid gsugar–1, and almost complete xylose consumption.

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Overview of Commercial Bioethanol Production Plants

Moreira,

Sganzerla,

Torres-Mayanga

et al. 2023

Bioethanol: A Green Energy Substitute for Fossil Fuels

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Integrated production of furfural and second-generation bioethanol from Eucalyptus wood residues: experimental results and process simulation

Cited by 6 publications

References 49 publications

Furfural production from lignocellulosic biomass: one-step and two-step strategies and techno-economic evaluation

Furfural production from lignocellulosic biomass: one-step and two-step strategies and techno-economic evaluation

Purification of xylosaccharides from eucalyptus residues for l‐lactic acid production by Weizmannia coagulans

Overview of Commercial Bioethanol Production Plants

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