On-Line NIR to Regulate Pervaporation Process: Application for Dehydration
The regeneration of volatile organic solvents via dehydration tests, from 90 wt %, was evaluated by pervaporation using an on-line near-infrared (NIR) spectrometer. Experiments were performed using a bis(triethoxysilyl)methane (BTESM)-based ceramic HybSi® membrane at temperatures of 20, 30 a...
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2018-09-01
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doaj-a90cdcd5350f44a38783c17485cd65662020-11-24T23:54:58ZengMDPI AGMembranes2077-03752018-09-01837410.3390/membranes8030074membranes8030074On-Line NIR to Regulate Pervaporation Process: Application for DehydrationThomas La Rocca0Emilie Carretier1Thomas Clair2Martial Etienne3Philippe Moulin4Aix-Marseille Université, CNRS, Centrale Marseille, M2P2 UMR 7340, Equipe Procédés Membranaires (EPM), Europôle de l’Arbois, BP80, Pavillon Laennec, Hall C, 13545 Aix-en-Provence CEDEX, FranceAix-Marseille Université, CNRS, Centrale Marseille, M2P2 UMR 7340, Equipe Procédés Membranaires (EPM), Europôle de l’Arbois, BP80, Pavillon Laennec, Hall C, 13545 Aix-en-Provence CEDEX, FranceSANOFI, Chemin de Meteline, 04200 Sisteron, FranceSANOFI, Chemin de Meteline, 04200 Sisteron, FranceAix-Marseille Université, CNRS, Centrale Marseille, M2P2 UMR 7340, Equipe Procédés Membranaires (EPM), Europôle de l’Arbois, BP80, Pavillon Laennec, Hall C, 13545 Aix-en-Provence CEDEX, FranceThe regeneration of volatile organic solvents via dehydration tests, from 90 wt %, was evaluated by pervaporation using an on-line near-infrared (NIR) spectrometer. Experiments were performed using a bis(triethoxysilyl)methane (BTESM)-based ceramic HybSi® membrane at temperatures of 20, 30 and 40 °C. The presence of an on-line NIR allows continuous monitoring of the process without sampling, and quickly estimates mass fractions of species in the retentate. Dehydration tests were performed at 30 °C in order to confirm the on-line NIR reproducibility, and closely matched results obtained with an off-line densimeter. These results validated the usefulness of the on-line NIR and provided the same precision whatever the mass fraction in the retentate. A good on-line reproducibility was found, with an agreement between the on-line NIR and off-line densimeter, obtaining an average deviation of ±0.058 wt %, ±0.17 wt % and ±0.049 wt %, respectively, at 20, 30 and 40 °C.http://www.mdpi.com/2077-0375/8/3/74on-line near-infrared spectroscopypervaporationHybSi® membraneorganic purification |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Thomas La Rocca Emilie Carretier Thomas Clair Martial Etienne Philippe Moulin |
spellingShingle |
Thomas La Rocca Emilie Carretier Thomas Clair Martial Etienne Philippe Moulin On-Line NIR to Regulate Pervaporation Process: Application for Dehydration Membranes on-line near-infrared spectroscopy pervaporation HybSi® membrane organic purification |
author_facet |
Thomas La Rocca Emilie Carretier Thomas Clair Martial Etienne Philippe Moulin |
author_sort |
Thomas La Rocca |
title |
On-Line NIR to Regulate Pervaporation Process: Application for Dehydration |
title_short |
On-Line NIR to Regulate Pervaporation Process: Application for Dehydration |
title_full |
On-Line NIR to Regulate Pervaporation Process: Application for Dehydration |
title_fullStr |
On-Line NIR to Regulate Pervaporation Process: Application for Dehydration |
title_full_unstemmed |
On-Line NIR to Regulate Pervaporation Process: Application for Dehydration |
title_sort |
on-line nir to regulate pervaporation process: application for dehydration |
publisher |
MDPI AG |
series |
Membranes |
issn |
2077-0375 |
publishDate |
2018-09-01 |
description |
The regeneration of volatile organic solvents via dehydration tests, from 90 wt %, was evaluated by pervaporation using an on-line near-infrared (NIR) spectrometer. Experiments were performed using a bis(triethoxysilyl)methane (BTESM)-based ceramic HybSi® membrane at temperatures of 20, 30 and 40 °C. The presence of an on-line NIR allows continuous monitoring of the process without sampling, and quickly estimates mass fractions of species in the retentate. Dehydration tests were performed at 30 °C in order to confirm the on-line NIR reproducibility, and closely matched results obtained with an off-line densimeter. These results validated the usefulness of the on-line NIR and provided the same precision whatever the mass fraction in the retentate. A good on-line reproducibility was found, with an agreement between the on-line NIR and off-line densimeter, obtaining an average deviation of ±0.058 wt %, ±0.17 wt % and ±0.049 wt %, respectively, at 20, 30 and 40 °C. |
topic |
on-line near-infrared spectroscopy pervaporation HybSi® membrane organic purification |
url |
http://www.mdpi.com/2077-0375/8/3/74 |
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