Recovery and conversion of acetic acid from a phosphonium phosphinate ionic liquid to enable valorization of fermented wastewater

Reyhanitash, Ehsan; Fufachev, Egor V.; Munster, Kaspar D. Van; Beek, Michael B.M. Van; Sprakel, Lisette M.J.; Edelijn, Carmen N.; Weckhuysen, Bert M.; Kersten, Sascha R.A.; Bruijnincx, Pieter C. A.; Schuur, Boelo

doi:10.1039/c9gc00725c

Cited by 45 publications

(31 citation statements)

References 45 publications

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“…This reaction has received much interest recently as an important means for the production of transportation fuels and chemicals from biobased feedstock, such as bio‐oils [1] or, from other circular feedstock, such as fermented wastewater streams. [ 2 , 3 ] Indeed, the ketone products are versatile precursor molecules that can be further upgraded to various value‐added products, for example, to fuel components, lubricants,[ 4 , 5 , 6 ] or alkylated aromatics. [ 7 , 8 ] Amphoteric metal oxides, such as TiO 2 ,[ 9 , 10 , 11 , 12 , 13 ] ZrO 2 ,[ 13 , 14 ] CeO 2 ,[ 15 , 16 , 17 , 18 ] or Ce x Zr (1‐ x ) O 2 ,[ 19 , 20 ] have been heavily studied for this process as a result of their high ketonization activity and selectivity.…”

Section: Introductionmentioning

confidence: 99%

Crystal Phase Effects on the Gas‐Phase Ketonization of Small Carboxylic Acids over TiO₂ Catalysts

2021

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The choice of TiO 2 crystal phase (i. e., anatase, rutile, or brookite) greatly influences catalyst performance in the gas‐phase ketonization of small volatile fatty acids, such as acetic acid and propionic acid. Rutile TiO 2 was found to perform best, combining superior activity, as exemplified by an exceptional reaction rate of 141.8 mmol h −1 g cat −1 (at 425 °C and 24 h −1 ) with excellent ketone selectivity when propionic acid was used. Brookite, to the best of our knowledge never reported before as a viable ketonization catalyst, was found to outperform the well‐studied anatase phase, but not rutile. Operando Fourier‐transform IR spectroscopy measurements combined with on‐line mass spectrometry showed that bidentate carboxylates were the most abundant surface species on the rutile and brookite surfaces, while on anatase both monodentate and bidentate carboxylates co‐existed. The bidendate carboxylates were thought to be precursors to the active ketonization species, likely monodentate intermediates more prone to C−C coupling. Ketonization activity did not directly correlate with acidity; the observed, strong crystal phase effect did suggest that ketonization activity is influenced strongly by geometrical factors that determine the ease of formation of the relevant surface intermediates.

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Section: Introductionmentioning

confidence: 99%

Crystal Phase Effects on the Gas‐Phase Ketonization of Small Carboxylic Acids over TiO₂ Catalysts

2021

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“…Additionally, the toxic effect on the fermentation culture is a possible issue in the case of many solvents [ 43 ]. Compared to traditional solvents, phosphonium-based ionic liquid (IL) extraction achieved a higher maximum VFA loading, leading to a higher efficiency [ 44 , 45 , 46 , 47 ], but 1-hexyl-3-methylimidazolium bromide was also successful in recovering lactic acid from wine [ 48 ].…”

Section: Introductionmentioning

confidence: 99%

Separation of Volatile Fatty Acids from Model Anaerobic Effluents Using Various Membrane Technologies

et al. 2020

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Effluents of anaerobic processes still contain valuable components, among which volatile fatty acids (VFAs) can be regarded and should be recovered and/or used further in applications such as microbial electrochemical technology to generate energy/energy carriers. To accomplish the separation of VFAs from waste liquors, various membrane-based solutions applying different transport mechanisms and traits are available, including pressure-driven nanofiltration (NF) and reverse osmosis (RO) which are capable to clarify, fractionate and concentrate salts and organics. Besides, emerging techniques using a membrane such as forward osmosis (FO) and supported liquid membrane (SILM) technology can be taken into consideration for VFA separation. In this work, we evaluate these four various downstream methods (NF, RO, FO and SILM) to determine the best one, comparatively, for enriching VFAs from pH-varied model solutions composed of acetic, butyric and propionic acids in different concentrations. The assessment of the separation experiments was supported by statistical examination to draw more solid conclusions. Accordingly, it turned out that all methods can separate VFAs from the model solution. The highest average retention was achieved by RO (84% at the applied transmembrane pressure of 6 bar), while NF provided the highest permeance (6.5 L/m2hbar) and a high selectivity between different VFAs.

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“…Binding and Reaction Kinetics, 26,43,[168][169][170][171][172][173][174] 10. Process Development, [175][176][177][178][179][180][181][182][183][184][185][186][187][188] and 11. Early ITC and non-ITC references.…”

Section: Introductionmentioning

confidence: 99%

Applications of isothermal titration calorimetry in pure and applied research from 2016 to 2020

Falconer

Schuur

Mittermaier

2021

J of Molecular Recognition

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The last 5 years have seen a series of advances in the application of isothermal titration microcalorimetry (ITC) and interpretation of ITC data. ITC has played an invaluable role in understanding multiprotein complex formation including proteolysistargeting chimeras (PROTACS), and mitochondrial autophagy receptor Nix interaction with LC3 and GABARAP. It has also helped elucidate complex allosteric communication in protein complexes like trp RNA-binding attenuation protein (TRAP) complex.Advances in kinetics analysis have enabled the calculation of kinetic rate constants from pre-existing ITC data sets. Diverse strategies have also been developed to study enzyme kinetics and enzyme-inhibitor interactions. ITC has also been applied to study small molecule solvent and solute interactions involved in extraction, separation, and purification applications including liquid-liquid separation and extractive distillation. Diverse applications of ITC have been developed from the analysis of protein instability at different temperatures, determination of enzyme kinetics in suspensions of living cells to the adsorption of uremic toxins from aqueous streams.

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Recovery and conversion of acetic acid from a phosphonium phosphinate ionic liquid to enable valorization of fermented wastewater

Abstract: A method was developed to recover and convert a carboxylic acid from a phosphonium phosphinate ionic liquid.

Cited by 45 publications

References 45 publications

Crystal Phase Effects on the Gas‐Phase Ketonization of Small Carboxylic Acids over TiO₂ Catalysts

Crystal Phase Effects on the Gas‐Phase Ketonization of Small Carboxylic Acids over TiO₂ Catalysts

Separation of Volatile Fatty Acids from Model Anaerobic Effluents Using Various Membrane Technologies

Applications of isothermal titration calorimetry in pure and applied research from 2016 to 2020

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Recovery and conversion of acetic acid from a phosphonium phosphinate ionic liquid to enable valorization of fermented wastewater

Abstract: A method was developed to recover and convert a carboxylic acid from a phosphonium phosphinate ionic liquid.

Cited by 45 publications

References 45 publications

Crystal Phase Effects on the Gas‐Phase Ketonization of Small Carboxylic Acids over TiO2 Catalysts

Crystal Phase Effects on the Gas‐Phase Ketonization of Small Carboxylic Acids over TiO2 Catalysts

Separation of Volatile Fatty Acids from Model Anaerobic Effluents Using Various Membrane Technologies

Applications of isothermal titration calorimetry in pure and applied research from 2016 to 2020

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Crystal Phase Effects on the Gas‐Phase Ketonization of Small Carboxylic Acids over TiO₂ Catalysts

Crystal Phase Effects on the Gas‐Phase Ketonization of Small Carboxylic Acids over TiO₂ Catalysts