Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/13238
Título: | Feedstock recycling of polyethylene over AlTUD mesoporous materials |
Autor(es): | Neves, I. C. Botelho, Gabriela Machado, A. V. Rebelo, P. Ramôa, S. Pereira, M. F. R. Ramanathan, A. Pescarmona, P. |
Palavras-chave: | Catalytic degradation AlTUD-1 High density polyethylene Thermal analysis |
Data: | 2007 |
Revista: | Polymer Degradation and Stability |
Resumo(s): | The catalytic degradation of high density polyethylene (HDPE) was investigated using AlTUD-1 as catalyst, a recently discovered mesoporous aluminosilicate. The catalytic activity of AlTUD-1 was evaluated by TGA measurements, using a polymer/catalyst ratio of 9:1. AlTUD-1 has a Brønsted acidic behaviour, three-dimensional (3D) connectivities and a pore diameters between 2 and 50 nm. Compared to HY zeolite, the large pore size of AlTUD-1 enhances a selective catalytic degradation of the polymer and prevents rapid deactivation. Moreover, the apparent activation energy of polymer cracking is much lower than with HY zeolite. For these reasons, AlTUD-1 is a potentially interesting catalyst for the catalytic cracking of plastic waste into liquid fuels. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/13238 |
ISSN: | 0141-3910 |
Versão da editora: | http://dx.doi.org/10.1016/j.polymdegradstab.2007.05.004 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDQuim - Artigos (Papers) IPC - Artigos em revistas científicas internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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23. Feedstock Recycling of polyethylene over AlTUD mesoporous materials.pdf Acesso restrito! | 566,37 kB | Adobe PDF | Ver/Abrir |