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|Title:||Feedstock recycling of polyethylene over AlTUD mesoporous materials|
|Author(s):||Neves, I. C.|
Machado, A. V.
Pereira, M. F. R.
High density polyethylene
|Journal:||Polymer Degradation and Stability|
|Abstract(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.|
|Access:||Restricted access (UMinho)|
|Appears in Collections:||CDQuim - Artigos (Papers)|
IPC - Artigos em revistas científicas internacionais com arbitragem
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