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Hydrothermally-treated Na-X as efficient adsorbents for butadiene removal.

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Title: Hydrothermally-treated Na-X as efficient adsorbents for butadiene removal.
Authors: Baur, Guillaume B.1, Héroguel, Florent2, Spring, Jonathan1, Luterbacher, Jeremy S.2, Kiwi-Minsker, Lioubov1,3 lioubov.kiwi-minsker@epfl.ch
Source: Chemical Engineering Journal. Mar2016, Vol. 288, p19-27. 9p.
Subjects: Butadiene synthesis, Calcination (Heat treatment), Sodium compounds, Adsorption (Chemistry), Zeolites, Toxicological interactions
Abstract: An efficient adsorbent for butadiene was synthesized via soft hydrothermal treatment (2 h in boiling water followed by 1 h calcination at 573 K) of industrial Na-X. The adsorption capacity of the zeolite was studied in the low concentration range (20–300 ppmv). Whereas original Na-X presents a very small adsorption, its treated counterpart shows a large capacity. The characterization of the zeolite suggests that the soft hydrothermal treatment dealuminates the zeolite leaving behind new OH-groups responsible for the adsorption of butadiene on the zeolite lattice. The adsorption isotherms were determined for the hydrothermally treated zeolites and the results were found to be consistent with the Dubinin–Astakhov (D–A) model. The adsorption enthalpy of butadiene on the treated Na-X was obtained from the D–A equation and from the modeling of temperature-programmed desorption profiles. Both methods gave a value of −45 kJ mol −1 suggesting chemical interactions of butadiene with the zeolite lattice. In summary, we report an efficient adsorbent for butadiene removal from diluted stream being valuable material for reducing butadiene emissions. [ABSTRACT FROM AUTHOR]
Copyright of Chemical Engineering Journal is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 112628756
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Hydrothermally-treated Na-X as efficient adsorbents for butadiene removal.
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  Data: <searchLink fieldCode="AR" term="%22Baur%2C+Guillaume+B%2E%22">Baur, Guillaume B.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Héroguel%2C+Florent%22">Héroguel, Florent</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Spring%2C+Jonathan%22">Spring, Jonathan</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Luterbacher%2C+Jeremy+S%2E%22">Luterbacher, Jeremy S.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Kiwi-Minsker%2C+Lioubov%22">Kiwi-Minsker, Lioubov</searchLink><relatesTo>1,3</relatesTo><i> lioubov.kiwi-minsker@epfl.ch</i>
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  Data: <searchLink fieldCode="JN" term="%22Chemical+Engineering+Journal%22">Chemical Engineering Journal</searchLink>. Mar2016, Vol. 288, p19-27. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Butadiene+synthesis%22">Butadiene synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Calcination+%28Heat+treatment%29%22">Calcination (Heat treatment)</searchLink><br /><searchLink fieldCode="DE" term="%22Sodium+compounds%22">Sodium compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Adsorption+%28Chemistry%29%22">Adsorption (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Zeolites%22">Zeolites</searchLink><br /><searchLink fieldCode="DE" term="%22Toxicological+interactions%22">Toxicological interactions</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: An efficient adsorbent for butadiene was synthesized via soft hydrothermal treatment (2 h in boiling water followed by 1 h calcination at 573 K) of industrial Na-X. The adsorption capacity of the zeolite was studied in the low concentration range (20–300 ppmv). Whereas original Na-X presents a very small adsorption, its treated counterpart shows a large capacity. The characterization of the zeolite suggests that the soft hydrothermal treatment dealuminates the zeolite leaving behind new OH-groups responsible for the adsorption of butadiene on the zeolite lattice. The adsorption isotherms were determined for the hydrothermally treated zeolites and the results were found to be consistent with the Dubinin–Astakhov (D–A) model. The adsorption enthalpy of butadiene on the treated Na-X was obtained from the D–A equation and from the modeling of temperature-programmed desorption profiles. Both methods gave a value of −45 kJ mol −1 suggesting chemical interactions of butadiene with the zeolite lattice. In summary, we report an efficient adsorbent for butadiene removal from diluted stream being valuable material for reducing butadiene emissions. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Chemical Engineering Journal is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.cej.2015.11.096
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      – Code: eng
        Text: English
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        PageCount: 9
        StartPage: 19
    Subjects:
      – SubjectFull: Butadiene synthesis
        Type: general
      – SubjectFull: Calcination (Heat treatment)
        Type: general
      – SubjectFull: Sodium compounds
        Type: general
      – SubjectFull: Adsorption (Chemistry)
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      – SubjectFull: Zeolites
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      – SubjectFull: Toxicological interactions
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      – TitleFull: Hydrothermally-treated Na-X as efficient adsorbents for butadiene removal.
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            NameFull: Baur, Guillaume B.
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            NameFull: Héroguel, Florent
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            NameFull: Spring, Jonathan
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            NameFull: Luterbacher, Jeremy S.
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            NameFull: Kiwi-Minsker, Lioubov
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              Text: Mar2016
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