Al-MFI Nanosheets as Highly Active and Stable Catalysts for the Conversion of Propanal to Hydrocarbons
Article is dedicated to Prof. Mark E. Davis.
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| Format: | Article |
| Language: | English |
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Springer US
2016
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| Online Access: | http://hdl.handle.net/1721.1/103357 https://orcid.org/0000-0002-0025-4233 https://orcid.org/0000-0001-5985-3348 |
| _version_ | 1811087674359939072 |
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| author | Luo, Helen Y. Prasomsri, Teerawit Roman, Yuriy |
| author2 | Massachusetts Institute of Technology. Department of Chemical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Chemical Engineering Luo, Helen Y. Prasomsri, Teerawit Roman, Yuriy |
| author_sort | Luo, Helen Y. |
| collection | MIT |
| description | Article is dedicated to Prof. Mark E. Davis. |
| first_indexed | 2024-09-23T13:50:12Z |
| format | Article |
| id | mit-1721.1/103357 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:50:12Z |
| publishDate | 2016 |
| publisher | Springer US |
| record_format | dspace |
| spelling | mit-1721.1/1033572022-09-28T16:32:06Z Al-MFI Nanosheets as Highly Active and Stable Catalysts for the Conversion of Propanal to Hydrocarbons Luo, Helen Y. Prasomsri, Teerawit Roman, Yuriy Massachusetts Institute of Technology. Department of Chemical Engineering Luo, Helen Y. Prasomsri, Teerawit Roman, Yuriy Article is dedicated to Prof. Mark E. Davis. The conversion of propanal to hydrocarbons is investigated over mesoporous aluminosilicate MFI nanosheets (Al-MFI-ns) of single-unit-cell thickness and conventional aluminum MFI zeolite (Al-MFI) at 673 K and atmospheric pressure. Al-MFI-ns exhibits a fivefold increase in stability attributed to the shorter diffusion path lengths and open architecture of the nanosheets, which minimizes pore blocking from fouling. The overall ratio of olefin to aromatic products is similar for Al-MFI-ns and Al-MFI at all conversion levels. However, the product distribution within each group shows that the Al-MFI-ns generate a fivefold increase in selectivity to C6–8 olefins and a twofold increase in selectivity to C9–10 aromatics compared to Al-MFI. The very high selectivity to C9-aromatic trimethylbenzene supports an aromatization mechanism involving sequential aldol condensation and dehydration sequences. The very short diffusion paths in the single-unit-cell thick nanosheets allows for the C9 aromatics to diffuse out of the pores before they can be converted to lighter aromatics or olefins. Al-MFI-ns shows no indication of irreversible deactivation, fully recovering its original activity after regeneration by calcination, and retaining similar deactivation rates and product selectivities as the fresh catalyst. Al-FMI-ns improves the production of aromatics from light oxygenates at mild conditions, a key feature for bio-oil upgrading. United States. Dept. of Energy (Small Business Innovation Research (SBIR) program, contract 97329S11-11) 2016-06-27T17:03:38Z 2016-06-27T17:03:38Z 2015-03 2016-05-23T12:15:59Z Article http://purl.org/eprint/type/JournalArticle 1022-5528 1572-9028 http://hdl.handle.net/1721.1/103357 Luo, Helen, Teerawit Prasomsri, and Yuriy Román-Leshkov. “Al-MFI Nanosheets as Highly Active and Stable Catalysts for the Conversion of Propanal to Hydrocarbons.” Top Catal 58, no. 7–9 (March 31, 2015): 529–536. https://orcid.org/0000-0002-0025-4233 https://orcid.org/0000-0001-5985-3348 en http://dx.doi.org/10.1007/s11244-015-0394-9 Topics in Catalysis Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ Springer Science+Business Media New York application/pdf Springer US Springer US |
| spellingShingle | Luo, Helen Y. Prasomsri, Teerawit Roman, Yuriy Al-MFI Nanosheets as Highly Active and Stable Catalysts for the Conversion of Propanal to Hydrocarbons |
| title | Al-MFI Nanosheets as Highly Active and Stable Catalysts for the Conversion of Propanal to Hydrocarbons |
| title_full | Al-MFI Nanosheets as Highly Active and Stable Catalysts for the Conversion of Propanal to Hydrocarbons |
| title_fullStr | Al-MFI Nanosheets as Highly Active and Stable Catalysts for the Conversion of Propanal to Hydrocarbons |
| title_full_unstemmed | Al-MFI Nanosheets as Highly Active and Stable Catalysts for the Conversion of Propanal to Hydrocarbons |
| title_short | Al-MFI Nanosheets as Highly Active and Stable Catalysts for the Conversion of Propanal to Hydrocarbons |
| title_sort | al mfi nanosheets as highly active and stable catalysts for the conversion of propanal to hydrocarbons |
| url | http://hdl.handle.net/1721.1/103357 https://orcid.org/0000-0002-0025-4233 https://orcid.org/0000-0001-5985-3348 |
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