Elimination of Odours from the Gaseous Phase on Cr- and Fe-modified Y-type Zeolites

Modified NaY-type zeolites, in which a portion of the sodium ions had been exchanged for chromium(III) or iron(III) ions, were studied as adsorbents. The modified zeolites were tested with respect to the adsorption of n-butylamine or n-butylthiol via the pulse method employing a column micro-adsorbe...

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Main Author: Zenon Sarbak
Format: Article
Language:English
Published: SAGE Publishing 2001-03-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1260/0263617011494079
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author Zenon Sarbak
author_facet Zenon Sarbak
author_sort Zenon Sarbak
collection DOAJ
description Modified NaY-type zeolites, in which a portion of the sodium ions had been exchanged for chromium(III) or iron(III) ions, were studied as adsorbents. The modified zeolites were tested with respect to the adsorption of n-butylamine or n-butylthiol via the pulse method employing a column micro-adsorber directly attached to a gas chromatograph. Thus, 200 mg portions of the adsorbent were activated by heating at 400°C for 2 h after which the temperature was decreased to 200°C. The column was held at this temperature for 1 h and then 10 μl portions of n-butylamine and n-butylthiol were injected on to it at 15-min intervals. It was found that the zeolites containing iron(III) ions were much more effective as adsorbents (by 30%) than those containing chromium ions, with this difference reaching 60% in the case of n-butylthiol. Furthermore, zeolites containing iron(III) ions underwent much less deactivation than those with chromium(III) ions. Increasing the iron → sodium or chromium → sodium ion exchange led to increased adsorption of the organic compounds studied. It was shown that Y-type zeolites modified with iron(III) are effective adsorbents for deodorising atmospheric air.
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spelling doaj-art-6bb06d12f5c648d49152991df41595fd2025-01-02T22:37:33ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382001-03-011910.1260/0263617011494079Elimination of Odours from the Gaseous Phase on Cr- and Fe-modified Y-type ZeolitesZenon SarbakModified NaY-type zeolites, in which a portion of the sodium ions had been exchanged for chromium(III) or iron(III) ions, were studied as adsorbents. The modified zeolites were tested with respect to the adsorption of n-butylamine or n-butylthiol via the pulse method employing a column micro-adsorber directly attached to a gas chromatograph. Thus, 200 mg portions of the adsorbent were activated by heating at 400°C for 2 h after which the temperature was decreased to 200°C. The column was held at this temperature for 1 h and then 10 μl portions of n-butylamine and n-butylthiol were injected on to it at 15-min intervals. It was found that the zeolites containing iron(III) ions were much more effective as adsorbents (by 30%) than those containing chromium ions, with this difference reaching 60% in the case of n-butylthiol. Furthermore, zeolites containing iron(III) ions underwent much less deactivation than those with chromium(III) ions. Increasing the iron → sodium or chromium → sodium ion exchange led to increased adsorption of the organic compounds studied. It was shown that Y-type zeolites modified with iron(III) are effective adsorbents for deodorising atmospheric air.https://doi.org/10.1260/0263617011494079
spellingShingle Zenon Sarbak
Elimination of Odours from the Gaseous Phase on Cr- and Fe-modified Y-type Zeolites
Adsorption Science & Technology
title Elimination of Odours from the Gaseous Phase on Cr- and Fe-modified Y-type Zeolites
title_full Elimination of Odours from the Gaseous Phase on Cr- and Fe-modified Y-type Zeolites
title_fullStr Elimination of Odours from the Gaseous Phase on Cr- and Fe-modified Y-type Zeolites
title_full_unstemmed Elimination of Odours from the Gaseous Phase on Cr- and Fe-modified Y-type Zeolites
title_short Elimination of Odours from the Gaseous Phase on Cr- and Fe-modified Y-type Zeolites
title_sort elimination of odours from the gaseous phase on cr and fe modified y type zeolites
url https://doi.org/10.1260/0263617011494079
work_keys_str_mv AT zenonsarbak eliminationofodoursfromthegaseousphaseoncrandfemodifiedytypezeolites