Kinetics of VOC absorption using capillary membrane contactor

Modelski, Sz.; Koltuniewicz, Andrzej Benedykt; Witek‐Krowiak, Anna

doi:10.1016/j.cej.2011.01.075

Cited by 12 publications

(9 citation statements)

References 26 publications

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“…VOCs are the primary precursors of fog and haze [2,3], which create severe smog conditions and affect the health of over 800 million people in east China. Currently, the technologies used to control VOCs emissions can be classified under two categories: (i) destructive methods, such as chemical oxidation and biological oxidation [4][5][6] and (ii) recovery processes that make use of absorption/adsorption, condensation and membrane separation methods [7][8][9]. Compared to the destructive methods, the absorption methods have attracted considerable attention because of their simplicity, safety, recyclability and low cost [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Study on the absorbability, regeneration characteristics and thermal stability of ionic liquids for VOCs removal

Wang

Grimes

et al. 2017

Chemical Engineering Journal

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A novel method of removal of volatile organic compounds (VOCs) using the ionic liquid [Bmim][NTf2] as an absorbent is developed as a contribution to dealing with recent severe smog incidents in China. The effects of concentration, temperature and flow rates on the ability of [Bmim][NTf2] to absorb VOCs were studied using toluene as a model volatile organic pollutant. The potential of the use of [Bmim][NTf2] as an absorbent for VOCs is shown by the solubility of toluene in the ionic liquid; the absorptivity of the ionic liquid for toluene; and the fact that absorbed toluene can be removed easily from [Bmim][NTf2], permitting recycle of the ionic liquid in multiple reuse phases. The solubility of toluene in [Bmim][NTf2] is 61.5% at 20 °C and atmospheric pressure; the highest absorptivity of [Bmim][NTf2] for toluene is 98.3%, achieved at a toluene concentration of 300 ppm and a flow rate of 50 mL min−1 at 20 °C; and the absorptivity of the ionic liquid is >94% over a wide range of conditions. The ionic liquid can be recovered and recycled in the absorption process at least five times, reducing the reagent cost in the VOC removal process

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Section: Introductionmentioning

confidence: 99%

Study on the absorbability, regeneration characteristics and thermal stability of ionic liquids for VOCs removal

Wang

Grimes

et al. 2017

Chemical Engineering Journal

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“…RE values decreased from 23% to 14% when liquid flowrates of 1.4×10 ‐2 m 3 h ‐1 and 7×10 ‐4 m 3 h ‐1 were used, respectively. Modelsky et al . also observed an important reduction of the mass transfer between the gas side and the liquid side, when the liquid velocity was decreased in a polypropylene capillary reactor working under co‐current flows.…”

Section: Resultsmentioning

confidence: 94%

“…RE values decreased from 23% to 14% when liquid flowrates of 1.4×10 -2 m 3 h -1 and 7×10 -4 m 3 h -1 were used, respectively. Modelsky et al 24 also observed an important reduction of the mass transfer between the gas side and the liquid side, when the liquid velocity was decreased in a polypropylene capillary reactor working under co-current flows. Based on these results co-current operation and a liquid flow rate of 7×10 -4 m 3 h -1 were used in the biotics experiments to evaluate the performance of the MBR working under more unfavorable conditions and, thus, to evaluate the system improvement when the bioreactor was inoculated.…”

Section: Mbr Abiotic Characterization Adsorption Capacitymentioning

confidence: 95%

Capillary membrane bioreactor for abatement of low soluble compounds in waste gas

Morral

Lao-Luque

Gabriel

et al. 2017

J of Chemical Tech & Biotech

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“…Resistance‐in‐series models consider variety of mass transfer resistance for transport of metal from aqueous to organic phase. In this approach, mass transfer coefficients are determined experimentally by correlations which are not very accurate . Recently, computational fluid dynamics (CFD) has been largely used as a powerful tool to model membrane separation processes.…”

Section: Introductionmentioning

confidence: 99%

Simulation of zinc extraction from aqueous solutions using polymeric hollow‐fibers

Ghadiri

Parvini

Darehnaei

2013

Polymer Engineering & Sci

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Modeling and simulation of zinc extraction from aqueous solutions with di(2‐ethylhexyl) phosphoric acid as extractant was conducted in this research. The simulated device for providing contact between two phases is a microporous hollow‐fiber membrane contactor. Computational fluid dynamics (CFD) method was applied for simulation of zinc extraction in this study. From the simulation results, concentration and pressure distributions were obtained for zinc to analyze the ability of membrane in extraction of zinc. The results of simulation revealed that extraction of Zn2+ from aqueous solutions is dependent on the flow rate of feed solution. It was observed that extraction efficiency of zinc was reduced with increasing feed flow rate. It is also indicated that the pressure drop along the shell side of the membrane extractor is not considerable. The latter is one of the advantages of membrane extractors which assist in reducing the separation costs for zinc recovery. POLYM. ENG. SCI., 54:2222–2227, 2014. © 2013 Society of Plastics Engineers

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Kinetics of VOC absorption using capillary membrane contactor

Cited by 12 publications

References 26 publications

Study on the absorbability, regeneration characteristics and thermal stability of ionic liquids for VOCs removal

Study on the absorbability, regeneration characteristics and thermal stability of ionic liquids for VOCs removal

Capillary membrane bioreactor for abatement of low soluble compounds in waste gas

Simulation of zinc extraction from aqueous solutions using polymeric hollow‐fibers

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