公开(公告)号：US3781219A

公开(公告)日：1973-12-25

申请号：US3781219D

申请日：1970-03-20

Applicant: ATLANTIC RICHFIELD CO

Inventor： JOHNSON M ,  GRAFF S

IPC: C10G49/06 ,  B01J23/656 ,  B01J23/96 ,  B01J38/42 ,  C10G35/09 ,  C10G47/14 ,  B01J11/18

CPC classification number: B01J23/6567 ,  B01J23/96 ,  C10G35/09 ,  C10G47/14

Abstract: A PROCESS FOR REACTIVATION, INCLUDING CHLORINATION, OF A FIXED BED OF CARBON-FOULED, PLATINUM GROUP METAL- AND RHENIUM-CONTAINING, ALUMINA-SUPPORTED CATALYST IS DISCLOSED WHICH INVOLVES CONTACTING THE CATALYST WITH AN OXYGEN-CONTAINING GAS, THEN WITH A GASEOUS STREAM CONTAINING INERT GAS, OXYGEN AND VAPOROUS CHLORINE-CONTAINING AGENT UNTIL AT LEAST ABOUT 0.2% CHLORINE HAS BEEN ADDED TO THE CATALYST BASED ON THE TOTAL WEIGHT OF CATALYST IN THE BED. CONTACT OF THE CATALYST IS THEN CONTINUED WITH A GASEOUS STREAM CONTAINING INERT GAS, OXYGEN AND A MINOR AMOUNT OF WATER VAPOR TO DISTRIBUTE CHLORINE IN THE CATALYST BED.