Isomerization-cracking of n-octane on catalysts based on heteropolyacid H3Pw12O40 and heteropolyacid supported on zirconia and promoted with Pt and Cs
AUTOR(ES)
Manuale, Debora L., Torres, Gerardo C., Benítez, Viviana M., Badano, Juan M., Yori, Juan C., Sepúlveda, Jorge H.
FONTE
Quím. Nova
DATA DE PUBLICAÇÃO
2013
RESUMO
Isomerization - cracking of n-octane was studied using H3PW12O40 (HPA) and HPA supported on zirconia and promoted with Pt and Cs. The addition of Pt and Cs to the supported HPA did not modify the Keggin structure. The Pt addition to the supported HPA did not substantially modify the total acidity; however, the Brönsted acidity increased significantly. Cs increased the total acidity and Brönsted acidity. A linear relation was observed between the n-C8 total conversion and Brönsted acidity. The most adequate catalysts for performing isomerization and cracking to yield high research octane number (RON) are those with higher values of Brönsted acidity.
Documentos Relacionados
- Preparação, caracterização e aplicação de H3PW12O40 suportado em zircônia
- Hydrolysis of cellulose using heteropoly salts derivatives from H3PW12O40 with different redox properties as catalysts
- Bimetallic Pt-Ni catalysts supported on usy zeolite for n-hexane isomerization
- Nano Fe2O3, clinoptilolite and H3PW12O40 as efficient catalysts for solvent-free synthesis of 5(4H)-isoxazolone under microwave irradiation conditions
- Utilização do heteropoliácido H3PW12O40 como catalisador em processos de valorização de compostos terpênicos