Hydrodesulfurization process employing a guard chamber

Details Hydrodesulfurization process employing a guard chamber Hydrodesulfurization process employing a guard chamber

C - Chemistry, Metallurgy

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C10G 45/00 (2006.01) C10G 45/08 (2006.01) C10G 65/04 (2006.01)

Patent

CA 1072902

HYDRODESULFURIZATION PROCESS EMPLOYING A GUARD CHAMBER Abstract of the Disclosure A process for hydrodesulfurizing a residual oil by passing the oil downwardly through a catalytic reaction zone at a hydrogen pressure which is sufficiently high that de- metallization occurs rapidly so that at end-of-run the up- stream catalyst region is more nearly metals-saturated than the downstream catalyst region. At the end of the catalyst cycle, the more nearly metals-saturated upstream portion of the catalyst is removed from the process while the less nearly metals-saturated downstream portion of the catalyst is passed to a guard chamber where during further operation of the pro- cess it approaches metals-saturation. In this manner, no portion of catalyst is removed from the process until it has an elevated metals content. - 1 -

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