公开(公告)号：US3682813A

公开(公告)日：1972-08-08

申请号：US3682813D

申请日：1970-05-20

Applicant: SHELL OIL CO

Inventor： DUN PETER W ,  WEEREN PIETER A VAN

IPC: C10G65/08 ,  C10G13/04 ,  C10G31/14

CPC classification number: C10G65/08 ,  C10G2400/10

Abstract: HIGH VISCOSITY INDEX LUBRICATING BASE OILS ARE PRODUCED FROM A DEASPHALTED OIL IN A MULTIZONE HYDROCRACKING PROCESS IN WHICH A SULFIDED NONACIDIC CATALYST COMPRISING ONE OR MORE METALS OF THE GROUP VI-B, VVII-B OR VIII METALS IS USED IN EACH REACTION ZONE. PREFERABLY, HYDROGEN SULFIDE AND/OR AMMONIA ARE REMOVED FROM THE FIRSTZONE EFFLUENT BEFORE INTRODUCING IT INTO THE SECOND ZONE. THE FIRST REACTION ZONE TEMPERATURE IS AT LEAST 750*F. WHILE THE SECOND REACTION ZONE TEMPERATURE IS AT LEAST 700*F.

公开(公告)号：US3663422A

公开(公告)日：1972-05-16

申请号：US3663422D

申请日：1969-08-28

Applicant: SHELL OIL CO

Inventor： DUN PETER W ,  FORMIJN J VAN

IPC: C10G45/46 ,  C10G67/04 ,  C10G67/14 ,  C10M101/02 ,  C10G41/00

CPC classification number: C10M101/02 ,  C10G2400/10 ,  C10M2203/10 ,  C10M2203/102 ,  C10M2207/023 ,  C10M2207/027 ,  C10M2207/16 ,  C10M2209/084 ,  C10M2215/086 ,  C10M2215/28 ,  C10M2219/044 ,  C10M2223/045 ,  C10N2210/02 ,  C10N2250/121

Abstract: VERY HIGH VISCOSITY INDEX (VI>125 LUBRICATING OILS ARE PRODUCED BY HYDROTREATING SOLVENT-REFINED, ASPHALTFREE WAXY HYDROCARBONS IN THE PRESENCE OF A SUITABLE CATALYST UNDER SPECIFIC HYDROTREATING CONDITIONS. A TRUE SAE 10W/30 MULIGRADE OIL IS PRODUCED WHICH DOES NOT REQUIRE THE ADDITION OF VI IMPROVES OR THICKENERS.