METHOD FOR HYDROCRACKING, METHOD FOR PRODUCING HYDROCRACKED OIL, HYDROCRACKING DEVICE, AND DEVICE FOR PRODUCING HYDROCRACKED OIL

摘要

The present invention is a method for hydrocracking a petroleum-based heavy oil containing a heavy metal component, the method characterized by being provided with a supplying step for supplying hydrogen gas and a starting material slurry including the petroleum-based heavy oil and an iron-based catalyst to a hydrocracking reactor, a hydrocracking step for hydrocracking the petroleum-based heavy oil in the hydrocracking reactor, a recovery step for recovering a residual oil component including the iron-based catalyst from the product after the hydrocracking step, a disintegration step for disintegrating the iron-based catalyst in the recovered residual oil component and obtaining a disintegrated iron-based catalyst, and a resupplying step for resupplying a processed residual oil component including the disintegrated iron-based catalyst to the hydrocracking reactor. The iron-based catalyst is preferably pulverized by a pulverizing machine in the disintegration step. The iron-based catalyst is preferably limonite.