公开(公告)号：US3649559A

公开(公告)日：1972-03-14

申请号：US3649559D

申请日：1967-06-27

Applicant: TEXACO INC

Inventor： COOPER DAVID E

IPC: B01J20/34 ,  B01J11/04 ,  B01J11/72

CPC classification number: B01J20/3408

Abstract: A CIRCULATING OXIDIZING GAS STREAM USED TO REGENERATE A BED OF CRYSTALLINE ALUMINOSILICATES IS OXIDIZED EXTERNAL TO THE BED TO REMOVE OXIDIZABLES FROM THE EFFLUENT STREAM BEFORE IT IS RECYCLED BACK TO THE BED. AS AN ALTERNATE TO THE OXIDATION, THE OXIDIZABLES ARE REMOVED FROM THE EFFLUENT STREAM IN AN ADSORPTION STEP.

公开(公告)号：US3647714A

公开(公告)日：1972-03-07

申请号：US3647714D

申请日：1969-05-14

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： WHITE FREDERICK K

IPC: C10G11/18 ,  B01J11/72 ,  B01J11/04

CPC classification number: C10G11/182

Abstract: WHEN SPENT FLUID CRACKING CATALYST IS AT LEAST PARTIALLY REGENERATED BY BURNING OF CARBON IN THE TRANSFER LINE LEADING TO THE REGENERATOR AND THE TEMPERATURE IN THE REGENERATOR CHAMBER IS AT LEAST 1220*F., REGENERATOR RESIDENCE TIMES AS LOW AS 3 TO 10 MINUTES PROVIDE CARBON ON REGENERATED CATALYST LEVELS AS LOW AS ABOUT 0.2 WEIGHT PERCENT.

公开(公告)号：US3711422A

公开(公告)日：1973-01-16

申请号：US3711422D

申请日：1970-09-08

Applicant: PHILLIPS PETROLEUM CO

Inventor： JOHNSON M ,  TABLER D

IPC: B01J29/90 ,  C10G11/05 ,  B01J11/70 ,  B01J11/72

CPC classification number: B01J29/90 ,  C10G11/05 ,  Y10S502/521

Abstract: A METHOD OF RESTORING ACTIVITY TO CRACKING CATALYSTS WHICH HAVE BEEN CONTAMINATED WITH METALS WHICH INVOLVES PASSIVATING THE METALS BY CONTACTING THEM WITH ANTIMONYCONTAINING COMPOUNDS AND RESTORING THE CATALYST ACTIVITY THEREAFTER BY CONVENTIONAL CALCINATION TECHNIQUES.

公开(公告)号：US3814701A

公开(公告)日：1974-06-04

申请号：US27911772

申请日：1972-08-09

Applicant: FMC CORP

Inventor： BROWNING J

IPC: B01J21/20 ,  B01J38/64 ,  C01B15/023 ,  B01J11/70 ,  B01J11/72

CPC classification number: C01B15/023 ,  B01J21/20 ,  Y02P20/584

Abstract: A SPENT ALUMINA THAT HAS BEEN IN CONTACT WITH AN ANTHRAQUINONE WORKING SOLUTION (MADE UP OF AN ANTHRAAQINONE WORKING COMPOUND DISSOLVED IN ONE OR MORE SOLVENTS) AND WHICH HAS BEEN USED TO MAINTAIN THE HYDROGEN PEROXIDE PRODUCTIVITY OF THE SOLUTION IS REGENERATED BY ROASTING THE ALUMINA AT A TEMPERATURE OF ABOUT 300400* C. UNTIL ADSORBED ORGANIC MATTER HAS BEEN REMOVED, CONTACTING THE ROASTED ALUMINA WITH AN AQUEOUS SODIUM HYDROXIDE SOLUTION AND ROASTING THE CAUSTIC-TREATED ALUMINA AT ABOUT 300-400* C. UNTIL THE ALUMINA HAS BEEN REGENERATED.