| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for hydrocracking a petroleum-based heavy oil, comprising hydrocracking the petroleum-based heavy oil containing a heavy metal, such as a vacuum-distillation residue oil, by which a light oil can profitably be produced in a high yield. SOLUTION: This method for hydrocracking the petroleum-based heavy oil, comprising a process for supplying hydrogen gas and a raw material slurry containing the heavy oil and a limonite iron ore catalyst to a suspension type reactor and a process for hydrocracking the heavy oil under reaction conditions comprising a reaction pressure at 30 to 160 kg/cm<SP>2</SP>, a reaction temperature of 430 to 455°C and a reaction time for 30 to 180 min, is characterized by preliminarily heating the raw material slurry at a temperature of 320 to 420°C for 10 to 60 min in the course for heating the raw material slurry to the reaction temperature: 430 to 455°C. COPYRIGHT: (C)2004,JPO
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