Resin screening for the removal of pyridine-derivatives from waste-water by solvent impregnated resin technology

Bokhove, J Jeroen; Schuur, Boelo; Haan, de Ab André

doi:10.1016/j.reactfunctpolym.2012.12.011

Cited by 15 publications

(14 citation statements)

References 24 publications

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“…The effective diffusion coefficient of CP in the SIR particle was estimated at 6.53 Á 10 À13 m 2 s À1 ± 2.5%. This low value of the diffusion coefficient can be explained by the high viscosity of the solvent, as also found for the transfer of CP in a SIR containing 4-nonylphenol as solvent [21].…”

Section: Mass-transfersupporting

confidence: 57%

“…3). In a previous study it was shown that due to the high viscosity of the solvent, the mass-transfer limitations will be completely in the organic phase inside the pores of the SIR [21]. For this reason mass-transfer resistance in the aqueous film was neglected and the organic side interface concentration was equal to the equilibrium concentration as defined by Eq.…”

Section: Mass-transfermentioning

confidence: 99%

“…In a previous study it was shown that the axial dispersion in the case of a SIR consisting of Amberlite XAD4 impregnated with 4-nonylphenol had hardly any effect on the breakthrough profile [21]. However, it was required to estimate the concentration gradient of the acid through the column and was therefore included in the model.…”

Section: Fixed Bed Column Modelmentioning

confidence: 99%

“…In that study, it was found that with phenol based solvents the highest capacities were obtained, whereas 4-nonylphenol has a very low solubility (5 ppm) [20] in the aqueous phase, which is beneficial for SIR processes. By impregnating 4-nonylphenol in Amberlite XAD4, a resin consisting of polystyrene cross-linked with divinylbenzene, a highly stable SIR was obtained [21]. The regeneration could be performed by a pH-swing with hydrochloric acid at a pH of 1, where the concentration of CP could be increased from 0.5 g/L in the loading cycle as feed solution to a maximum of 3 g/L in the effluent during the regeneration cycle.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Selective recovery of a pyridine derivative from an aqueous waste stream containing acetic acid and succinonitrile with solvent impregnated resins

Bokhove

Visser

Schuur

et al. 2015

Reactive and Functional Polymers

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Section: Mass-transfersupporting

confidence: 57%

Section: Mass-transfermentioning

confidence: 99%

Section: Fixed Bed Column Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Selective recovery of a pyridine derivative from an aqueous waste stream containing acetic acid and succinonitrile with solvent impregnated resins

Bokhove

Visser

Schuur

et al. 2015

Reactive and Functional Polymers

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“…Many studies have explored pyridine adsorption performance using porous materials including activated carbons [9][10][11][12], clayey till and zeolites [13,14], synthetic apatite [1], polymer resins [15,16], and metal organic frameworks [17,18].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of pyridine from aqueous solutions by polymeric adsorbents MN 200 and MN 500. Part 2: Kinetics and diffusion analysis

Zhu

Moggridge

D’Agostino

2016

Chemical Engineering Journal

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Telephone: +44 (0)1223 334763Fax: +44 (0)1223 334796 2 AbstractThe adsorption kinetics of pyridine adsorption on Macronet adsorbents MN 200 and MN 500 from aqueous solution was investigated at various initial pyridine concentrations and temperatures. The Weber-Morris plots revealed the influence of both external film diffusion and intraparticle diffusion resistances. The two linear regions in Weber-Morris plots were attributed to macropore and micropore diffusion, which was associated to the bimodal pore size distribution of the adsorbents. New insights into the diffusion mechanisms were highlighted, with the proposed internal film diffusion resistance dominating into the macropore region, whereas homogeneous particle diffusion resistance describes diffusion in the micropore region. The importance of pore and surface diffusion in the micropores was noted in contributing to the observed diffusion kinetics. The pore diffusion coefficient was estimated from PFG (pulsedfield gradient) parameter and molecular diffusion coefficient of pyridine in bulk liquid. A greater contribution of the surface to the overall diffusion kinetics was found for MN 500 as inferred from a proposed calculation method, which agrees with its better adsorption performance. The overall findings highlight the effect of pore structure onto the diffusion mechanisms inside the pores and help to gain a better understanding into the adsorption kinetics of these Macronet adsorbents, which are promising materials for the removal of Nheterocyclic compounds from waste water.

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The influence of solvents and impurities on the separation of biobased phenol and 2‐octanone

Sprakel

Bargeman

Sanchez

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND: Phenol is used as a raw material in the polycarbonate industry and as the incentive for bio-based plastics and products is increasing, so is the interest in and demand for bio-based phenols. In renewable phenol production processes based on biomass, impurities derived from the biomass, including other oxygenate compounds, are expected in the phenol containing solution. Vapor-liquid equilibrium (VLE) of phenol and 2-Octanone was studied and impact of impurities thereon to gain insights applicable for similar systems in biorefineries for renewable phenol production. RESULTS: For the binary mixture of phenol -2-octanone azeotropic VLE behavior was found. The effects of ternary compounds on the molecular interactions between phenol and 2-octanone were studied using isothermal calorimetry (ITC) and molecular modelling (MM), and the impact on the VLE behavior was measured using an ebulliometer. CONCLUSION: It was found that the relative volatility could be improved by adding solvents that are polar and/or contain hydrogen bond accepting groups. Ketones and ethers most strongly improved the relative volatility of the binary mixture 2octanonephenol. Addition of a linear alkane, a repelling component especially for 2-octanone, strongly improved the relative volatility as well. ITC and MM results, providing heat of mixing and the interaction energy of mixture components, improved fundamental understanding of the molecular interactions between phenol, 2-octanone and ternary compounds, and supported the VLE findings.

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Resin screening for the removal of pyridine-derivatives from waste-water by solvent impregnated resin technology

Cited by 15 publications

References 24 publications

Selective recovery of a pyridine derivative from an aqueous waste stream containing acetic acid and succinonitrile with solvent impregnated resins

Selective recovery of a pyridine derivative from an aqueous waste stream containing acetic acid and succinonitrile with solvent impregnated resins

Adsorption of pyridine from aqueous solutions by polymeric adsorbents MN 200 and MN 500. Part 2: Kinetics and diffusion analysis

The influence of solvents and impurities on the separation of biobased phenol and 2‐octanone

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