Mass transfer in hollow fiber membrane contactor extraction using compressed solvents

Geoffrey D. Bothun; Barbara L. Knutson; Herbert J. Strobel; Sue E. Nokes

doi:10.1016/j.memsci.2003.08.025

Mass transfer in hollow fiber membrane contactor extraction using compressed solvents

Geoffrey D. Bothun
, Barbara L. Knutson
, Herbert J. Strobel
, Sue E. Nokes

Producción científica: Article › revisión exhaustiva

41 Citas (Scopus)

Resumen

Ethanol and acetone were extracted from aqueous feed streams (10wt.% solute) at ambient temperature using compressed propane (34.5bar) and CO ₂ (69bar) in a polypropylene hollow fiber membrane contactor (HFC). Overall mass transfer coefficients were determined and related to tubeside, membrane, and shellside mass transfer by varying the aqueous velocity (0.6-11.8cm/s) and molar solvent to feed ratio (1 to 3) in countercurrent flow. The overall mass transfer coefficient for ethanol and acetone extraction with compressed propane ranged from 3.8×10^-4 to 1.1×10 ^-2 and 1.1×10^-4 to 1.7×10^-3cm/s, respectively. For compressed CO₂, the overall mass transfer coefficient ranged from 5.1×10^-4 to 1.4×10 ^-3cm/s for ethanol extraction and 4.1×10^-4 to 9.5×10^-4cm/s for acetone extraction. Experimentally determined shellside mass transfer coefficients were compared to values predicted by existing correlations for HFC extraction with non-pressurized solvents. Enhanced HFC mass transfer is observed with compressed solvents relative to both conventional liquid HFC extraction and to column extraction with compressed CO₂. Our results demonstrate the applicability of compressed hydrocarbons to HFC-based processes, and the ability to analyze compressed solvent-based extraction using conventional HFC techniques.

Idioma original	English
Páginas (desde-hasta)	183-196
Número de páginas	14
Publicación	Journal of Membrane Science
Volumen	227
N.º	1-2
DOI	https://doi.org/10.1016/j.memsci.2003.08.025
Estado	Published - dic 15 2003

Nota bibliográfica

Funding Information:
The authors acknowledge the financial support of the National Science Foundation (Grant BES-9817069), and Marc Sims at Porocrit™ for providing the single fiber units and assistance with the initial design of the system. We also acknowledge the advice of Alan Gabelman, Dr. Bill Krantz, and Dr. Sun-Tak Hwang at the Center for Membrane Applied Science and Technology located at the University of Cincinnati, and Dr. Esteban Brignole (PLAPIQUI, Bahı́a Blanca, Argentina) for his invaluable contributions.

Financiación

The authors acknowledge the financial support of the National Science Foundation (Grant BES-9817069), and Marc Sims at Porocrit™ for providing the single fiber units and assistance with the initial design of the system. We also acknowledge the advice of Alan Gabelman, Dr. Bill Krantz, and Dr. Sun-Tak Hwang at the Center for Membrane Applied Science and Technology located at the University of Cincinnati, and Dr. Esteban Brignole (PLAPIQUI, Bahı́a Blanca, Argentina) for his invaluable contributions.

Financiadores	Número del financiador
National Science Foundation (NSF)	BES-9817069

ASJC Scopus subject areas

Biochemistry
General Materials Science
Physical and Theoretical Chemistry
Filtration and Separation

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10.1016/j.memsci.2003.08.025

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@article{e8aa7d7cca0c4a9d81831c65bf26c97f,

title = "Mass transfer in hollow fiber membrane contactor extraction using compressed solvents",

abstract = "Ethanol and acetone were extracted from aqueous feed streams (10wt.\% solute) at ambient temperature using compressed propane (34.5bar) and CO 2 (69bar) in a polypropylene hollow fiber membrane contactor (HFC). Overall mass transfer coefficients were determined and related to tubeside, membrane, and shellside mass transfer by varying the aqueous velocity (0.6-11.8cm/s) and molar solvent to feed ratio (1 to 3) in countercurrent flow. The overall mass transfer coefficient for ethanol and acetone extraction with compressed propane ranged from 3.8×10-4 to 1.1×10 -2 and 1.1×10-4 to 1.7×10-3cm/s, respectively. For compressed CO2, the overall mass transfer coefficient ranged from 5.1×10-4 to 1.4×10 -3cm/s for ethanol extraction and 4.1×10-4 to 9.5×10-4cm/s for acetone extraction. Experimentally determined shellside mass transfer coefficients were compared to values predicted by existing correlations for HFC extraction with non-pressurized solvents. Enhanced HFC mass transfer is observed with compressed solvents relative to both conventional liquid HFC extraction and to column extraction with compressed CO2. Our results demonstrate the applicability of compressed hydrocarbons to HFC-based processes, and the ability to analyze compressed solvent-based extraction using conventional HFC techniques.",

keywords = "Biotechnology, Compressed fluids, Fiber membranes, Organic separations",

author = "Bothun, \{Geoffrey D.\} and Knutson, \{Barbara L.\} and Strobel, \{Herbert J.\} and Nokes, \{Sue E.\}",

note = "Funding Information: The authors acknowledge the financial support of the National Science Foundation (Grant BES-9817069), and Marc Sims at Porocrit{\texttrademark} for providing the single fiber units and assistance with the initial design of the system. We also acknowledge the advice of Alan Gabelman, Dr. Bill Krantz, and Dr. Sun-Tak Hwang at the Center for Membrane Applied Science and Technology located at the University of Cincinnati, and Dr. Esteban Brignole (PLAPIQUI, Bah{\'ı}a Blanca, Argentina) for his invaluable contributions.",

year = "2003",

month = dec,

day = "15",

doi = "10.1016/j.memsci.2003.08.025",

language = "English",

volume = "227",

pages = "183--196",

number = "1-2",

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TY - JOUR

T1 - Mass transfer in hollow fiber membrane contactor extraction using compressed solvents

AU - Bothun, Geoffrey D.

AU - Knutson, Barbara L.

AU - Strobel, Herbert J.

AU - Nokes, Sue E.

N1 - Funding Information: The authors acknowledge the financial support of the National Science Foundation (Grant BES-9817069), and Marc Sims at Porocrit™ for providing the single fiber units and assistance with the initial design of the system. We also acknowledge the advice of Alan Gabelman, Dr. Bill Krantz, and Dr. Sun-Tak Hwang at the Center for Membrane Applied Science and Technology located at the University of Cincinnati, and Dr. Esteban Brignole (PLAPIQUI, Bahı́a Blanca, Argentina) for his invaluable contributions.

PY - 2003/12/15

Y1 - 2003/12/15

N2 - Ethanol and acetone were extracted from aqueous feed streams (10wt.% solute) at ambient temperature using compressed propane (34.5bar) and CO 2 (69bar) in a polypropylene hollow fiber membrane contactor (HFC). Overall mass transfer coefficients were determined and related to tubeside, membrane, and shellside mass transfer by varying the aqueous velocity (0.6-11.8cm/s) and molar solvent to feed ratio (1 to 3) in countercurrent flow. The overall mass transfer coefficient for ethanol and acetone extraction with compressed propane ranged from 3.8×10-4 to 1.1×10 -2 and 1.1×10-4 to 1.7×10-3cm/s, respectively. For compressed CO2, the overall mass transfer coefficient ranged from 5.1×10-4 to 1.4×10 -3cm/s for ethanol extraction and 4.1×10-4 to 9.5×10-4cm/s for acetone extraction. Experimentally determined shellside mass transfer coefficients were compared to values predicted by existing correlations for HFC extraction with non-pressurized solvents. Enhanced HFC mass transfer is observed with compressed solvents relative to both conventional liquid HFC extraction and to column extraction with compressed CO2. Our results demonstrate the applicability of compressed hydrocarbons to HFC-based processes, and the ability to analyze compressed solvent-based extraction using conventional HFC techniques.

AB - Ethanol and acetone were extracted from aqueous feed streams (10wt.% solute) at ambient temperature using compressed propane (34.5bar) and CO 2 (69bar) in a polypropylene hollow fiber membrane contactor (HFC). Overall mass transfer coefficients were determined and related to tubeside, membrane, and shellside mass transfer by varying the aqueous velocity (0.6-11.8cm/s) and molar solvent to feed ratio (1 to 3) in countercurrent flow. The overall mass transfer coefficient for ethanol and acetone extraction with compressed propane ranged from 3.8×10-4 to 1.1×10 -2 and 1.1×10-4 to 1.7×10-3cm/s, respectively. For compressed CO2, the overall mass transfer coefficient ranged from 5.1×10-4 to 1.4×10 -3cm/s for ethanol extraction and 4.1×10-4 to 9.5×10-4cm/s for acetone extraction. Experimentally determined shellside mass transfer coefficients were compared to values predicted by existing correlations for HFC extraction with non-pressurized solvents. Enhanced HFC mass transfer is observed with compressed solvents relative to both conventional liquid HFC extraction and to column extraction with compressed CO2. Our results demonstrate the applicability of compressed hydrocarbons to HFC-based processes, and the ability to analyze compressed solvent-based extraction using conventional HFC techniques.

KW - Biotechnology

KW - Compressed fluids

KW - Fiber membranes

KW - Organic separations

UR - https://www.scopus.com/pages/publications/0344899863

UR - https://www.scopus.com/pages/publications/0344899863#tab=citedBy

U2 - 10.1016/j.memsci.2003.08.025

DO - 10.1016/j.memsci.2003.08.025

M3 - Article

AN - SCOPUS:0344899863

SN - 0376-7388

VL - 227

SP - 183

EP - 196

JO - Journal of Membrane Science

JF - Journal of Membrane Science

IS - 1-2

ER -

Mass transfer in hollow fiber membrane contactor extraction using compressed solvents

Resumen

Nota bibliográfica

Financiación

ASJC Scopus subject areas

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