TY - JOUR
T1 - Mass transfer analysis and kinetic modeling for process design of countercurrent membrane supported reactive extraction of carboxylic acids
AU - Gössi, Angelo
AU - Riedl, Wolfgang
AU - Schuur, Boelo
N1 - Funding Information:
Boelo Schuur would like to acknowledge Dr. ir. Winkelman and Prof.dr.ir. Heeres from University of Groningen for the discussions on the concept of mass transfer enhancement relations in both liquid phases simultaneously. These discussions have helped conceptualizing the enhancement of mass transfer of weak acids from aqueous phases due to instantaneous dissociation equilibrium as presented in this paper. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
Publisher Copyright:
© 2021 The Authors
PY - 2022/2
Y1 - 2022/2
N2 - Countercurrent membrane supported reactive extraction (MSRE) was studied for removal of carboxylic acids from aqueous streams with a PTFE capillary membrane. Analysis of the mass transfer rates was performed to support modeling of the process. Total mass transfer coefficients ranging from 2.0·10-7 to 4.0·10-7 m/s were obtained when extracting lactic acid with 20 wt% tri-N-octyl amine in 1-decanol with membrane thicknesses of 260 µm and 80 µm. The limiting mass transfer resistance in all experiments was in the membrane phase. The developed model based on mass transfer and reaction in parallel allows to predict countercurrent extraction. Experimental validation with 5, 7 and 12 m long membrane modules showed excellent accordance for two acids, validating the model simulations. Simulated membrane contactor lengths required for single, two and three countercurrent stages varied between 10 and 39 m/stage for lactic, mandelic, succinic, itaconic and citric acid, depending on acid, membrane, and diluent.
AB - Countercurrent membrane supported reactive extraction (MSRE) was studied for removal of carboxylic acids from aqueous streams with a PTFE capillary membrane. Analysis of the mass transfer rates was performed to support modeling of the process. Total mass transfer coefficients ranging from 2.0·10-7 to 4.0·10-7 m/s were obtained when extracting lactic acid with 20 wt% tri-N-octyl amine in 1-decanol with membrane thicknesses of 260 µm and 80 µm. The limiting mass transfer resistance in all experiments was in the membrane phase. The developed model based on mass transfer and reaction in parallel allows to predict countercurrent extraction. Experimental validation with 5, 7 and 12 m long membrane modules showed excellent accordance for two acids, validating the model simulations. Simulated membrane contactor lengths required for single, two and three countercurrent stages varied between 10 and 39 m/stage for lactic, mandelic, succinic, itaconic and citric acid, depending on acid, membrane, and diluent.
KW - Carboxylic acid
KW - Membrane extraction
KW - Product recovery
KW - Reactive extraction
KW - UT-Hybrid-D
UR - http://www.scopus.com/inward/record.url?scp=85121977333&partnerID=8YFLogxK
U2 - 10.1016/j.cesx.2021.100119
DO - 10.1016/j.cesx.2021.100119
M3 - Article
AN - SCOPUS:85121977333
VL - 13
JO - Chemical Engineering Science: X
JF - Chemical Engineering Science: X
SN - 2590-1400
M1 - 100119
ER -