H-USY and H-ZSM-5 zeolites as catalysts for HDPE conversion under a hydrogen reductive atmosphere

2021 ◽  
Vol 5 (4) ◽  
pp. 1134-1147
Author(s):  
Cátia S. Costa ◽  
Marta Muñoz ◽  
M. Rosário Ribeiro ◽  
João M. Silva

This work uses thermogravimetric analysis to investigate the influence of acidity and accessibility in the catalytic conversion of HDPE under hydrogen atmosphere over parent and Ni-based H-USY and H-ZSM-5 zeolites.

2015 ◽  
Vol 616 ◽  
pp. 9-13 ◽  
Author(s):  
Glauco F. Leal ◽  
Luiz A. Ramos ◽  
Dean H. Barrett ◽  
Antonio Aprígio S. Curvelo ◽  
Cristiane B. Rodella

2013 ◽  
Vol 51 (2) ◽  
pp. 137-144
Author(s):  
Naesung Lee ◽  
Jeung Choon Goak ◽  
Tae Yang Kim ◽  
Jongwan Jung ◽  
Young-Soo Seo ◽  
...  

2016 ◽  
Vol 10 (4) ◽  
pp. 465-472 ◽  
Author(s):  
Debora Almeida ◽  
◽  
Maria de Fatima Marques ◽  

In the present work, the pyrolysis of polypropylene and polyethylene was evaluated with and without the addition of niobium oxide as catalyst by means of thermogravimetric analysis and experiments in a glass reactor. The results revealed that niobium oxide performed well in the pyrolysis of both polypropylene and polyethylene separately. For the mixture of polypropylene with polyethylene, the catalyst reduced the pyrolysis time.


2019 ◽  
Author(s):  
Andreas Boelke ◽  
Yulia A. Vlasenko ◽  
Mekhman S. Yusubov ◽  
Boris Nachtsheim ◽  
Pavel Postnikov

<p>The thermal stability of pseudocyclic and cyclic <i>N</i>-heterocycle-stabilized (hydroxy)aryl- and mesityl(aryl)-l<sup>3</sup>-iodanes (NHIs) through thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) is investigated. NHIs bearing <i>N</i>-heterocycles with a high N/C-ratio such as triazoles show among the lowest descomposition temperatures and the highest decomposition energies. A comparison of NHIs with known (pseudo)cyclic benziodoxolones is made and we further correlated their thermal stability with reactivity in a model oxygenation. </p>


Author(s):  
Diogo Nunes ◽  
Gretta Larisa Aurora Arce Ferrufino ◽  
Ivonete Ávila

Sign in / Sign up

Export Citation Format

Share Document