Show simple item record

dc.contributor.authorNora, Jullok
dc.contributor.authorLuis, Patricia
dc.contributor.authorDegrève, Jan
dc.contributor.authorVan der Bruggen, Bart
dc.date.accessioned2014-03-15T03:30:52Z
dc.date.available2014-03-15T03:30:52Z
dc.date.issued2014-02
dc.identifier.citationChemical Engineering Science, vol.105, 2014, pages 208–212en_US
dc.identifier.issn0009-2509
dc.identifier.urihttp://dspace.unimap.edu.my:80/dspace/handle/123456789/32774
dc.descriptionLink to publisher's homepage at http://www.elsevier.comen_US
dc.description.abstractPervaporation is advantageous in separating close-boiling point mixtures, azeotropes, thermally sensitive compounds and purification of chemicals. However, one pervaporation unit may not be economically feasible to simultaneously provide a high purity of compounds in both the retentate and the permeate streams. In this study, a cascaded pervaporation method is developed aiming to dehydrate 85 wt% acetic acid solution from a basis feed of 100 kg/h. First, pervaporation experiments were performed using lab-made PPSU membranes. In pervaporation, the separation factor depends on the intrinsic properties of the membrane and on the operating conditions. These aspects cause a variation of the separation factor in pervaporation from 2 to 24. The process with one pervaporation unit, a cascaded PV system, and a cascaded PV with recycle stream is evaluated. This study demonstrates an efficient dewatering of acetic acid from an initial feed of 85 wt% acetic acid, obtaining 99.7 wt% acetic acid at rate of 72.8 kg/h using a cascaded PV with recycle stream. The large membrane area requirement in PV due to the low flux may be the main limitation for PV. Therefore, the development of new membranes exhibiting a high flux and a high selectivity are vital to decrease the membrane area, which may improve the potential for realizing these processes on a commercial scale.en_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectPervaporationen_US
dc.subjectMembrane separationen_US
dc.subjectAcetic aciden_US
dc.subjectDehydrationen_US
dc.titleA cascaded pervaporation process for dehydration of acetic aciden_US
dc.typeArticleen_US
dc.identifier.urlhttp://www.sciencedirect.com/science/article/pii/S000925091300746X
dc.identifier.urlhttp://dx.doi.org/10.1016/j.ces.2013.11.011
dc.contributor.urlNora.Jullok@cit.kuleuven.been_US
dc.contributor.urlmarie9581@yahoo.comen_US
dc.contributor.urlpatricia.luis@uclouvain.been_US
dc.contributor.urlJan.Degreve@cit.kuleuven.been_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record