Abstract
The authors examine the hydrogenation processing of petroleum residues. The significant contents of resins, asphaltenes, and organometallic compounds in residual feeds impose specific requirements on catalysts for the hydrogenation processes. On the basis of their studies, processes have been developed and tested on a pilot-plant scale for hydrodemetallization and hydrodesulfurization of atmospheric resid in a fluid bed of catalyst, and for hydroprocessing vacuum resid in a three-phase fluid bed of catalyst. The material balance for hydrodesulfurization of atmospheric resid with preliminary demetallization in order to produce cat cracker feed is shown and the product quality is also presented.
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