Patent ID: 8765622
Filing Date: 2014-07-01
Classification: B01D,B01J,C10G

Abstract:
1. A method of recovering unsupported fine catalyst from heavy oil, the method comprising: a) combining a slurry comprising unsupported fine catalyst in heavy oil with solvent to form a combined slurry-solvent stream; b) filtering the combined slurry-solvent stream in a deoiling zone employing at least a membrane that is rapidly displaced in a horizontal direction thereby generating a second stream comprising solvent and heavy oil and a retentate stream; c) recovering from the deoiling zone the retentate stream comprising unsupported fine catalyst and solvent; and d) separating the unsupported fine catalyst from the retentate stream comprising unsupported fine catalyst and solvent by a drying step generating a dry solid containing the unsupported fine catalyst with less than 0.5 wt % heavy oil.