A comparison of rates of disproportionation and transalkylation of m-xylene

Autor: L. E. Aneke
Rok vydání: 2007
Předmět:
Zdroj: Journal of Chemical Technology and Biotechnology. 32:513-517
ISSN: 1935-181X
0142-0356
Popis: The relative rates of toluene transalkylation, disproportionation and benzene transalkylation of m-xylene over a catalyst consisting of 72% HY zeolite, 18% β-AlF3 and 10% (all w/w) Cu have been studied at a temperature of 723K, reciprocal space velocity of 352 g h−1 mol−1 and at total pressures varying between 101 and 911.93 kPa. The catalysed disproportionation of m-xylene is fastest and this has been explained in terms of the greater basicity of m-xylene over either benzene or toluene, whereas the catalyst is acidic. Thus m-xylene would be expected to adsorb more strongly on the catalyst.
Databáze: OpenAIRE