Method of reducing nitrogen to not more than 1 p. p. m. in reformer feed

Claim 1

A METHOD OF ENHANCING THE HYDRODENITROGENIZING CAPABILITIES OF HYDROGENATION CATALYST HAVING HYDRODESULFURIZING AND HYDRODENITROGENIZING CAPABILITIES WHICH COMPRISES CONTACTING A HYDROGENATION CATALYST HAVING HYDRODESULFURIZING AND HYDRODENITROGENIZING CAPABILITIES COMPRISING OXIDES OF COBALT AND MOLYBDENUM ON ALUMINA SUPPORT WITH SULFUR IN NON-OXIDIZED FORM TO OBTAIN A SULFIDED HYDROGENATION CATALYST WHICH, WHEN CONTACTED WITH TEST NAPHTHA CONTAINING ABOUT 95 TO ABOUT 100 P.P.M. OF NITROGEN AT HYDRODENITROGENIZING CONDITIONS OF 675*F., 425 P.S.I.G., LIQUID HOURLY SPACE VELOCITY OF 5, AND HYDROGEN CIRCULATION RATE OF 500 S.C.F./BBL. OF SAID TEST NAPHTHA, PRODUCES C5 AND HEAVIER HYDROCARBON PRODUCT CONTAINING AT LEAST FORTY PERCENT LESS NITROGEN THAN C5 AND HEAVIER HYDROCARBON PRODUCT PRODUCED FROM SAID TEST NAPHTHA UNDER SAID HYDRODENITROGENIZING CONDITIONS EMPLOYING SAID HYDROGENATION CATALYST WITHOUT PRESULFIDING.