Desulfurization process and catalyst

Claim 2

A DESULFURIZATION CATALYST CONSISTING ESENTIALLY OF AN ADSORBENT CARRIER WHICH IS ESSENTIALLY AN ACTIVATED, COPRECIPITATED CARRIER WHICH IS ESSENTIALLY AN ACTIVATED, COPORTION OF SILICA, AND INTIMATELY INCORPORATED THEREIN BETWEEN ABOUT 3% AND 25% BY WEIGHT OF VANADIUM OXIDE CALCULATED AS V2O5, AND BETWEEN ABOUT 0.1% AND 5% BY WEIGHT OF MAGNESIUM OXIDE, WHEREIN THE ATOMIC RATIO OF MG TO V IS BETWEEN ABOUT 0.05 AND 1.0.

Claim 3

A PROCESS FOR TREATING A HYDROCARBON FRACTION CONTAINING NON-HYDROCARBON IMPURITIES SELECTED FROM THE GROUP CONSISTING OF SULFUR COMPOUNDS, NITROGEN COMPOUNDS, AND OXYGEN COMPOUNDS, WHICH COMPRISES SUBJECTING SAID HYDROCARBON FRACTION TO CALALYTIC HYDROTREATING AT TEMPERATURES BETWEEN ABOUT 600* AND 900* F., PRESSURES BETWEEN ABOUT ATMOSPHERIC AND 5000 P.S.I.G., SPACE VELOCITIES BETWEEN ABOUT 0.5 AND 20 VOLUMES OF LIQUID FEED PER VOLUME OF CATALYST PER HOUR, AND HYDROGEN RATIOS BETWEEN ABOUT 50 AND 5000 S.C.F. PER BARREL OF FEED, SAID HYDROTREATING BEING CARRIED OUT IN CONTACT WITH A CATALYST CONSISTING ESSENTIALLY OF (1) AN ADSORBENT CARRIER WHICH IS ESSENTIALLY A COPRECIPITATED ACTIVATED ALUMINA-SILICA GEL CONTAINING A MINOR PROPORTION OF SILICA, AND (2) INTIMATELY INCORPORATED THEREIN BETWEEN ABOUT 3% AND 25% BY WEIGHT OF VANADIUM OXIDE CALCULATED AS V205, AND BETWEEN ABOUT 0.1% AND 5% BY WEIGHT OF MAGNESIUM OXIDE, WHEREIN THE ATOMIC RATIO OF MG TO V IS BETWEEN ABOUT 0.05 AND 1.0.

Claim 4

A PROCESS FOR TREATING A HYDROCARBON FRACTION CONTAINING NON-HYDROCARBON IMPURITIES SELECTED FROM THE GROUP CONSISTING OF SULFUR COMPOUNDS, NITROGEN COMPOUNDS, AND OXYGEN COMPOUNDS, WHICH COMPRISES SUBJECTING SAID HYDROCARBON FRACTION TO CALALYTIC HYDROTREATING AT TEMPERATURES BETWEEN ABOUT 600* AND 900* F., PRESSURES BETWEEN ABOUT ATMOSPHERIC AND 5000 P.S.I.G., SPACE VELOCITIES BETWEEN ABOUT 0.5 AND 20 VOLUMES OF LIQUID FEED PER VOLUME OF CATALYST PER HOUR, AND HYDROGEN RATIOS BETWEEN ABOUT 50 AND 5000 S.C.F. PER BARREL OF FEED, SAID HYDROTREATING BEING CARRIED OUT IN CONTACT WITH A CATALYST CONSISTING ESSENTIALLY OF (1) AN ADSORBENT CARRIER WHICH IS ESSENTIALLY A COPRECIPITATED ACTIVATED ALUMINA-SILICA GEL CONTAINING A MINOR PROPORTION OF SILICA, AND (2) INTIMATELY INCORPORATED THEREIN BETWEEN ABOUT 3% AND 25% BY WEIGHT OF VANADIUM OXIDE CALCULATED AS V205, AND BETWEEN ABOUT 0.1% AND 5% BY WEIGHT OF MAGNESIUM OXIDE, WHEREIN THE ATOMIC RATIO OF MG TO V IS BETWEEN ABOUT 0.05 AND 1.0.