公开(公告)号：US3811916A

公开(公告)日：1974-05-21

申请号：US17807971

申请日：1971-09-07

Applicant: ALUMINUM CO OF AMERICA

Inventor： RUSSELL A ,  JARRETT N ,  MARSHALL B ,  REMPER J

IPC: B01D7/00 ,  B01D7/02 ,  C01F7/00 ,  C01F7/56 ,  C01F7/58 ,  C01F7/60 ,  C01F7/62 ,  B44D1/02

CPC classification number: B01D7/02 ,  C01F7/58 ,  C01F7/60 ,  C01F7/62 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/20 ,  C01P2006/80 ,  Y10S264/19 ,  Y10T428/2982

Abstract: Process for the preparation of selectively constituted carbon impregnated alumina through the thermal cracking of hydrocarbon in contact with a fluidized bed of particles of precoated high surface area alumina in a first zone to deposit carbon in situ thereon in conjunction with the deposition of residual crackable hydrocarbon from the first zone gaseous effluent on particles of uncoated high surface area alumina in a second zone and prior to their introduction into said first zone, and minimization of the amounts of free hydrogen attendant the resultant carbon impregnated product.