Resumen
The kinetics of asphaltene conversion was studied during the hydrotreating of Maya heavy crude oil. Experimental tests were conducted in a pilot plant at the following reaction conditions: total pressure of 70-100 kg/cm2, liquid hourly space-velocity (LHSV) of 0.33-1.5 h-1, and reaction temperature of 380-420 °C at a constant hydrogen-to-oil ratio of 5000 ft3/bbl. A commercial NiMo/Al2O3 catalyst was used in all experiments. Asphaltenes were precipitated from Maya crude and from hydrotreated products in a Parr Batch Reactor at 25 kg/cm2 and 60 °C with n-heptane as solvent. Asphaltene hydrocracking data were used to estimate reaction orders and activation energy using a power-law model, and the average absolute error between experimental and calculated concentrations of asphaltenes was found to be less than 5%.
Idioma original | Inglés |
---|---|
Páginas (desde-hasta) | 99-103 |
Número de páginas | 5 |
Publicación | Catalysis Today |
Volumen | 109 |
N.º | 1-4 |
DOI | |
Estado | Publicada - 30 nov. 2005 |
Publicado de forma externa | Sí |