| Resumo: | This study aims to improve petroleum residual oil quality by converting it into lighter
products over different types of catalysts. The process was conducted in a batch mode
under various operating conditions, temperature in range 250-350 °C, reaction time 90-
230 min and catalyst ratio 0.3-1.30 using a high-pressure stirred reactor in the presence
of hydrogen and catalyst.
At first commercial NiMo/Ah03 catalyst was used to find the range of operation
conditions for catalytic hydrocracking of petroleum residual oi). Statistical design of
experiment, (DOE), was used to obtain the range of operating conditions. It was found
that the range of operating conditions for catalytic hydrocracking of petroleum residual
oil over commercial NiMo/Ah03 sulphided catalyst are: temperature of 330°C, time of
200 min and catalyst ratio of 1.1.
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