Contaminations impairing an acetic acid biorefinery: Liquid-liquid extraction of lipophilic wood extractives with fully recyclable extractants

Almhofer, Lukas; Paulik, Christian; Bammer, Daniela; Schlackl, Klaus; Bischof, Robert H.

doi:10.1016/j.seppur.2022.122869

Cited by 5 publications

(3 citation statements)

References 47 publications

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“…In the pulp and paper industry, extracted acetic acid can be utilized, converted into sodium acetate using the sodium hydroxide solution already present for ber processes in the pulp and paper industry. 35 Post-reaction, the electrolyte can be reused or separated through the application of bipolar membranes and electrodialysis. [36][37][38] For numerous electrocatalytic processes, extensive research has explored cation effects of the electrolyte on electrochemical reduction.…”

Section: Introductionmentioning

confidence: 99%

Revisiting the electrocatalytic hydrogenation of furfural to furfuryl alcohol using biomass-derived electrolytes

Wolfsgruber,

Bischof,

Paulik

et al. 2024

RSC Sustain.

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Section: Introductionmentioning

confidence: 99%

Revisiting the electrocatalytic hydrogenation of furfural to furfuryl alcohol using biomass-derived electrolytes

Wolfsgruber,

Bischof,

Paulik

et al. 2024

RSC Sustain.

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“…6,[33][34][35] However, the vast majority of studies focus solely on the rational molecular design of the IL extractant through systematic variation of anion, cation, and alkyl chains. [36][37][38] The potential synergistic effects of strategically designing the feedstock solvent along with the IL have been largely ignored.…”

Section: Introductionmentioning

confidence: 99%

A synergistic ‘push and pull’ ionic liquid biphasic system for enhanced extraction separation of cholic acid and deoxycholic acid

Ding,

Rong,

Cao

et al. 2023

Green Chem.

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“…In the pulp and paper industry, extracted acetic acid can be utilized, converted into sodium acetate using the sodium hydroxide solution already present for fiber processes in the pulp and paper industry. 35 Post-reaction, the electrolyte can be reused or separated through the application of bipolar membranes and electrodialysis. [36][37][38] For numerous electrocatalytic processes, extensive research has explored cation effects of the electrolyte on electrochemical reduction.…”

Section: Introductionmentioning

confidence: 99%

Bioelectrorefinery of furfural to furfuryl alcohol in aqueous media

Wolfsgruber,

Bischof,

Paulik

et al. 2023

Preprint

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Electrocatalytic hydrogenation of furfural to furfuryl alcohol represents a sustainable approach to utilizing renewable energy for producing bio-based platform chemicals. However, low Faraday efficiencies (FEs) and the use of organic solvents with high environmental impacts often render the process less sustainable than classical catalytic hydrogenation. In this study, a two-compartment and three-electrode setup at ambient temperature and atmospheric pressure, featuring various electrodes (Ag, Au, CP, Cu, Pt, Sn, and a gold-coated silver wire (AucAg)), and biomass-derived electrolytes (acetic acid, levulinic acid, and sodium acetate), was tested. AucAg, serving as an electrocatalyst with 1 M sodium acetate as electrolyte, exhibited the best combination of FE and furfuryl alcohol yield with 82% and 37%, respectively. The optimum conditions were achieved at 100 rpm and −0.8 V vs. RHE. Scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS) analyzes indicated no significant influence of the substances on the working electrode during the reaction. Since the identity of the cation of the electrolyte influences the electrode-electrolyte microenvironment, multiple alkali metals were trialed. Sodium ion as the counter ion emerged on top, surpassing potassium, and cesium ions for the electroreduction of furfural to furfuryl alcohol. This preference could be attributed to the competing hydrogen evolution reaction favored by Cs over K and Na. In this perspective, the highlights of a bioelectrorefinery concept for creating a bio-derived platform chemical in a sustainable solvent with green electrons are demonstrated and optimized.

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Contaminations impairing an acetic acid biorefinery: Liquid-liquid extraction of lipophilic wood extractives with fully recyclable extractants

Cited by 5 publications

References 47 publications

Revisiting the electrocatalytic hydrogenation of furfural to furfuryl alcohol using biomass-derived electrolytes

Revisiting the electrocatalytic hydrogenation of furfural to furfuryl alcohol using biomass-derived electrolytes

A synergistic ‘push and pull’ ionic liquid biphasic system for enhanced extraction separation of cholic acid and deoxycholic acid

Bioelectrorefinery of furfural to furfuryl alcohol in aqueous media

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