Modeling and simulation of butanol separation from aqueous solutions using pervaporation

El-Zanati, Elham; Abdel-Hakim, E. A.; El-Ardi, O.; Fahmy, M.F.M.

doi:10.1016/j.memsci.2006.01.029

Cited by 45 publications

(21 citation statements)

References 11 publications

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“…As shown in Figure 2A, the butanol flux, from either binary or model solutions, has a linear relationship with respect to the reactor‐side butanol concentration. This linear relationship was previously observed during the pervaporative separation of butanol‐water solutions 21, 28–30. The transport behavior of butanol during the separation of the binary solutions has been previously shown to follow the solution‐diffusion mechanism, which can be mathematically described as shown in Eqs.…”

Section: Resultssupporting

confidence: 65%

Study of in situ 1‐butanol pervaporation from A‐B‐E fermentation using a PDMS composite membrane: Validity of solution‐diffusion model for pervaporative A‐B‐E fermentation

Srivastava

Parnas

2011

Biotechnology Progress

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In this study, the application of a new polydimethylsiloxane (PDMS)/dual support composite membrane was investigated by incorporating the pervaporation process into the A-B-E (acetone-butanol-ethanol) fermentation. The performance of the A-B-E fermentation using the integrated pervaporation/fermentation process showed higher biomass concentrations and higher glucose consumption rates than those of the A-B-E fermentation without pervaporation. The performance of the membrane separation was studied during the separation of 1-butanol from three different 1-butanol solutions: binary, model, and fermentation culture solutions. The solution-diffusion model, specifically the mass transfer equation based on Fick's First Law, was shown to be applicable to the undefined A-B-E fermentation culture solutions. A quantitative comparison of 1-butanol separation from the three different solutions was made by calculating overall mass transfer coefficients of 1-butanol. It was found that the overall mass transfer coefficients during the separation of binary, model, and fermentation culture solutions were 1.50, 1.26, and 1.08 mm/h, respectively.

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Section: Resultssupporting

confidence: 65%

Study of in situ 1‐butanol pervaporation from A‐B‐E fermentation using a PDMS composite membrane: Validity of solution‐diffusion model for pervaporative A‐B‐E fermentation

Srivastava

Parnas

2011

Biotechnology Progress

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“…Results revealed that butanol concentration changes non-linearly during the first 3 h, and then proceeds linearly. The percentage of butanol removal increases with increasing feed concentration [183]. A new type of pervaporation apparatus was designed and tested by Vrana et al to develop an integrated fermentation and product recovery process for ABE fermentation.…”

Section: Membrane Techniques and Other Methodsmentioning

confidence: 99%

Biobutanol from Renewable Agricultural and Lignocellulose Resources and Its Perspectives as Alternative of Liquid Fuels

Kótai¹,

Szépvölgyi²,

Szilagyi³

et al. 2013

Liquid, Gaseous and Solid Biofuels - Conversion Techniques

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“…It is possible to model a process using: a purely theoretical approach, e.g. model Wenchang and Sikdar (El-Zanati et al, 2006), semi-empirical (Garcia et al, 2009b) and empirical models (Cojocaru et al, 2009). Due to the complex nature of the problem theoretical modelling of separation for the quaternary systems is extremely rare.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of acetone-butanol-ethanol-water system separation by pervaporation

Marszałek¹,

Kamiński²

2012

Chemical and Process Engineering

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The article focuses on multicomponent system separation with the use of an innovative membranebased technique i.e. pervaporation. Pervaporation is a membrane technique for separation of liquid mixtures on solid nonporous membranes. Pervaporation is used in this study to separate a quaternary system acetone-butanol-ethanol-water. Such a system may be derived from ABE fermentation process, and the resulting product, biobutanol, is a potential biofuel and may be used in internal combustion engines.Experiments in the study involving concentration of butanol by pervaporation were performed using PERVAP 4060 flat-sheet commercial membrane. To describe the PV process a semi-empirical approach was used. As a result of experiments and calculations permeance coefficients were obtained. Separation and permeance factors were calculated to assess the efficiency of the system separation. Beforehand, activity coefficients were determined for all the components of the mixture with the NRTL equation. Separation coefficients for all the components differed depending on process parameters: concentration, feed flow rate and process temperature. The study confirmed the separation effect of the quaternary system. The most interesting results were obtained for the concentration of butanol. Pervaporation allows to concentrate butanol over 10 times. The permeance coefficient reached for butanol an average value of 7.06⋅10 -3 in comparison with the results for ethanol 3.24⋅10 -2 and acetone 1.The temperature change from 50 to 70°C led to an increased permeance factor and there was no apparent effect on it in the feed flow rate. Due to the hydrophobicity of the membrane water fluxes in the quaternary system were negative.

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Modeling and simulation of butanol separation from aqueous solutions using pervaporation

Cited by 45 publications

References 11 publications

Study of in situ 1‐butanol pervaporation from A‐B‐E fermentation using a PDMS composite membrane: Validity of solution‐diffusion model for pervaporative A‐B‐E fermentation

Study of in situ 1‐butanol pervaporation from A‐B‐E fermentation using a PDMS composite membrane: Validity of solution‐diffusion model for pervaporative A‐B‐E fermentation

Biobutanol from Renewable Agricultural and Lignocellulose Resources and Its Perspectives as Alternative of Liquid Fuels

Efficiency of acetone-butanol-ethanol-water system separation by pervaporation

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