On the Effect of Modifications to Montmorillonite for the Desulphurization of Synthetic Gasoline
The preparation, characterization and desulphurization of hexadecyltrimethylammonium bromide (CTAB)-intercalated montmorillonite (CTAB-MMT) and SiO 2 Ce-pillared montmorillonite (SiO 2 Ce-MMT) is described. CTAB-MMT, SiO 2 Ce-MMT and MMT (the original clay) were examined for their ability to remove...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publications
2011-02-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.29.2.197 |
| _version_ | 1797282348568412160 |
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| author | Ying Zhang Aiping Chen Chunzhong Li Meifang Luo Zhenliang Xu |
| author_facet | Ying Zhang Aiping Chen Chunzhong Li Meifang Luo Zhenliang Xu |
| author_sort | Ying Zhang |
| collection | DOAJ |
| description | The preparation, characterization and desulphurization of hexadecyltrimethylammonium bromide (CTAB)-intercalated montmorillonite (CTAB-MMT) and SiO 2 Ce-pillared montmorillonite (SiO 2 Ce-MMT) is described. CTAB-MMT, SiO 2 Ce-MMT and MMT (the original clay) were examined for their ability to remove thiophene sulphur from normal heptane solution as well as from synthetic gasoline. The adsorption thermodynamics and kinetics on all three adsorbents were investigated when it was found that SiO 2 Ce-MMT possessed a higher adsorption capacity than MMT and CTAB-MMT. The adsorption capacity increased as the temperature increased in the range 303–333 K. The data for the adsorption equilibrium were well fitted by the Freundlich isotherm model. Negative values of ΔG 0 suggested that the adsorption process was spontaneous. Furthermore, positive ΔH 0 and ΔS 0 values indicated that the adsorption was endothermic and irreversible. |
| first_indexed | 2024-03-07T17:11:31Z |
| format | Article |
| id | doaj.art-31b4c7bf1eb14dec9a5e12afd3c0bf26 |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2024-03-07T17:11:31Z |
| publishDate | 2011-02-01 |
| publisher | SAGE Publications |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-31b4c7bf1eb14dec9a5e12afd3c0bf262024-03-03T00:57:50ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40382011-02-012910.1260/0263-6174.29.2.197On the Effect of Modifications to Montmorillonite for the Desulphurization of Synthetic GasolineYing Zhang0Aiping Chen1Chunzhong Li2Meifang Luo3Zhenliang Xu4 Membrane Science and Engineering R & D Center, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China Key Laboratory for Ultrafine Materials of the Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China Key Laboratory for Ultrafine Materials of the Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China Key Laboratory for Ultrafine Materials of the Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China Membrane Science and Engineering R & D Center, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. ChinaThe preparation, characterization and desulphurization of hexadecyltrimethylammonium bromide (CTAB)-intercalated montmorillonite (CTAB-MMT) and SiO 2 Ce-pillared montmorillonite (SiO 2 Ce-MMT) is described. CTAB-MMT, SiO 2 Ce-MMT and MMT (the original clay) were examined for their ability to remove thiophene sulphur from normal heptane solution as well as from synthetic gasoline. The adsorption thermodynamics and kinetics on all three adsorbents were investigated when it was found that SiO 2 Ce-MMT possessed a higher adsorption capacity than MMT and CTAB-MMT. The adsorption capacity increased as the temperature increased in the range 303–333 K. The data for the adsorption equilibrium were well fitted by the Freundlich isotherm model. Negative values of ΔG 0 suggested that the adsorption process was spontaneous. Furthermore, positive ΔH 0 and ΔS 0 values indicated that the adsorption was endothermic and irreversible.https://doi.org/10.1260/0263-6174.29.2.197 |
| spellingShingle | Ying Zhang Aiping Chen Chunzhong Li Meifang Luo Zhenliang Xu On the Effect of Modifications to Montmorillonite for the Desulphurization of Synthetic Gasoline Adsorption Science & Technology |
| title | On the Effect of Modifications to Montmorillonite for the Desulphurization of Synthetic Gasoline |
| title_full | On the Effect of Modifications to Montmorillonite for the Desulphurization of Synthetic Gasoline |
| title_fullStr | On the Effect of Modifications to Montmorillonite for the Desulphurization of Synthetic Gasoline |
| title_full_unstemmed | On the Effect of Modifications to Montmorillonite for the Desulphurization of Synthetic Gasoline |
| title_short | On the Effect of Modifications to Montmorillonite for the Desulphurization of Synthetic Gasoline |
| title_sort | on the effect of modifications to montmorillonite for the desulphurization of synthetic gasoline |
| url | https://doi.org/10.1260/0263-6174.29.2.197 |
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