info:eu-repo/semantics/article
Kinetic studies of the dry reforming of methane over the Rh/La 2O3-SiO2 catalyst
Fecha
2007-11Registro en:
Múnera Agudelo, John Fernando; Cornaglia, Laura Maria; Vargas Cesar, Deborah; Schmal, Martin; Lombardo, Eduardo Agustin; Kinetic studies of the dry reforming of methane over the Rh/La 2O3-SiO2 catalyst; American Chemical Society; Industrial & Engineering Chemical Research; 46; 23; 11-2007; 7543-7549
0888-5885
CONICET Digital
CONICET
Autor
Múnera Agudelo, John Fernando
Cornaglia, Laura Maria
Vargas Cesar, Deborah
Schmal, Martin
Lombardo, Eduardo Agustin
Resumen
Rh(0.6%)/La2O2(27%)-SiO2 is one of the best catalysts used in membrane reactors for the CO2 reforming of methane. A reliable rate equation is needed to model the system. Hence, the fresh and used/catalysts were duly characterized using several instrumental techniques (TPD, DRIFTS, and XPS). The kinetic behavior of the catalysts in the reforming reaction was investigated as a function of temperature and partial pressure of CH4 and CO2. The rate of methane consumption showed fractional order dependency on the partial pressures of both reactants. A reaction mechanism adopted from the literature and supported by the characterization data presented here led to a kinetic equation that fits the experimental data obtained. This study contributes to a better qualitative and quantitative understanding of the dry reforming of methane occurring on Rh catalysts supported on La-containing oxides.