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A cascaded pervaporation process for dehydration of acetic acid

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Main Authors: Nora, Jullok, Luis, Patricia, Degrève, Jan, Van der Bruggen, Bart
Other Authors: Nora.Jullok@cit.kuleuven.be
Format: Article
Language:English
Published: Elsevier 2014
Subjects:
Pervaporation
Membrane separation
Acetic acid
Dehydration
Online Access:http://dspace.unimap.edu.my:80/dspace/handle/123456789/32774
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spelling my.unimap-327742014-03-15T03:30:52Z A cascaded pervaporation process for dehydration of acetic acid Nora, Jullok Luis, Patricia Degrève, Jan Van der Bruggen, Bart Nora.Jullok@cit.kuleuven.be marie9581@yahoo.com patricia.luis@uclouvain.be Jan.Degreve@cit.kuleuven.be Pervaporation Membrane separation Acetic acid Dehydration Link to publisher's homepage at http://www.elsevier.com Pervaporation 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. 2014-03-15T03:30:52Z 2014-03-15T03:30:52Z 2014-02 Article Chemical Engineering Science, vol.105, 2014, pages 208–212 0009-2509 http://dspace.unimap.edu.my:80/dspace/handle/123456789/32774 http://www.sciencedirect.com/science/article/pii/S000925091300746X http://dx.doi.org/10.1016/j.ces.2013.11.011 en Elsevier
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Pervaporation
Membrane separation
Acetic acid
Dehydration
spellingShingle Pervaporation
Membrane separation
Acetic acid
Dehydration
Nora, Jullok
Luis, Patricia
Degrève, Jan
Van der Bruggen, Bart
A cascaded pervaporation process for dehydration of acetic acid
description Link to publisher's homepage at http://www.elsevier.com
author2 Nora.Jullok@cit.kuleuven.be
author_facet Nora.Jullok@cit.kuleuven.be
Nora, Jullok
Luis, Patricia
Degrève, Jan
Van der Bruggen, Bart
format Article
author Nora, Jullok
Luis, Patricia
Degrève, Jan
Van der Bruggen, Bart
author_sort Nora, Jullok
title A cascaded pervaporation process for dehydration of acetic acid
title_short A cascaded pervaporation process for dehydration of acetic acid
title_full A cascaded pervaporation process for dehydration of acetic acid
title_fullStr A cascaded pervaporation process for dehydration of acetic acid
title_full_unstemmed A cascaded pervaporation process for dehydration of acetic acid
title_sort cascaded pervaporation process for dehydration of acetic acid
publisher Elsevier
publishDate 2014
url http://dspace.unimap.edu.my:80/dspace/handle/123456789/32774
_version_ 1643796981251833856
score 13.222552

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