Design of hybrid distillation and vapor permeation processes
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Cited by (32)
Methodology for design of vapor permeation membrane-assisted distillation processes for aqueous azeotrope dehydration
2019, Journal of Membrane ScienceCitation Excerpt :The hybrid process was claimed to be economically more desirable than the conventional design for dehydration of isopropanol [1], and energy-efficient for the separation of alcohol and water [9]. A major obstacle for the design of MAD in industry is the trade-off between the capital cost of membrane and the operation cost of distillation [10]. The optimal process can be obtained by overcoming the trade-off phenomenon.
A mathematical model for zeolite membrane module performance and its use for techno-economic evaluation of improved energy efficiency hybrid membrane-distillation processes for butane isomer separations
2016, Journal of Membrane ScienceCitation Excerpt :In a series configuration, the feed composition to the membrane unit is fixed, while in a parallel configuration it can be varied depending upon the stage of side stream extraction from the distillation column. However, it has been shown that the side draw stage in a parallel configuration is usually located near the feed stage where the distillation is least effective [148,152-155], which effectively makes it similar to the series configuration. Sometimes, a vapor feed is preferred over a liquid feed for the membrane separation to eliminate the heavy impurities which otherwise may clog the membrane pores.
Vapor permeation-distillation hybrid processes for cost-effective isopropanol dehydration: Modeling, simulation and optimization
2016, Journal of Membrane ScienceCitation Excerpt :This will ward off the phase changes across the membrane surface, which appears simpler than the pervaporation process. In addition to its simplicity, vapor permeation is less sensitive to concentration polarization on the feed side of the membrane; the membrane lifetime is expected to be longer than pervaporation, due to the low degree of membrane-swelling [14]. Furthermore, the hollow fiber module is used because of its wide applications and large membrane area packed into a small volume [15–17], and it is also capable when combined with a distillation column [18].
Purification of l-(+)-lactic acid from pre-treated fermentation broth using vapor permeation-assisted esterification
2012, Process BiochemistryCitation Excerpt :However, a significant increase in total flux was observed for up to 3.06 kg/(m2 h) indicating that this particular system requires less membrane surface area for the same dehydration task. The higher total flux is probably caused by many reasons including the higher operating temperature, and the much lesser hydrodynamic boundary layer effect compared to pervaporation technique [18]. In addition, a further difference between PV and VP is that VP-assisted esterification can be considered as a two steps operation (evaporation form liquid according to VLE followed by a selective dehydration using membrane).
Separation of ethyl acetate-isooctane mixtures by pervaporation and pervaporation-based hybrid methods
2012, Chemical Engineering JournalIntegrated Membrane Operations in Various Industrial Sectors
2010, Comprehensive Membrane Science and Engineering