On-line regeneration of hydrodesulfurization catalyst

Details On-line regeneration of hydrodesulfurization catalyst On-line regeneration of hydrodesulfurization catalyst

1978-10-30

1980-05-13

Crasanakis, George J.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423651, 208216R, 252419, B01J 800, C10G 2302

Patent

active

042028655

ABSTRACT:
A hydrotreating catalyst is regenerated as it concurrently hydrotreats a hydrocarbon fuel by introducing a low concentration of oxygen into the catalyst bed either continuously or periodically. At low oxygen concentrations the carbon deposits on the catalyst are burned off without harming the catalyst and without significantly affecting the hydrotreating process. In a preferred embodiment the hydrotreating process is hydrodesulfurization, and regenerating is done periodically with oxygen concentrations between 0.1 and 0.5 volume percent.

REFERENCES:
patent: 2631921 (1953-03-01), Odell
patent: 3413214 (1968-11-01), Galbreath
patent: 3519573 (1970-07-01), Coe
patent: 4123507 (1978-10-01), Hass

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