公开(公告)号：US3704224A

公开(公告)日：1972-11-28

申请号：US3704224D

申请日：1970-10-02

Applicant: STANDARD OIL CO

Inventor： SCOVILL WARNER E ,  DAY DONALD R

IPC: C10B55/00 ,  C25C7/02 ,  C10G9/14

CPC classification number: C10B55/00 ,  C25C7/025

Abstract: AN IMPROVED COKE FOR THE PRODUCTION OF GRAPHITE ELECTRODES IS PRODUCED FROM A PETROLEUM COKING FEEDSTOCK CONTAINING 0.01% BY WEIGHT OR MORE OF SPENT CRACKING CATALYST BY REDUCING THE SPENT CRACKING CATALYST CONTENT OF THE PETROLEUM COKING FEEDSTOCK TO LESS THAN 0.005% BY WEIGHT PRIOR TO THE COKING OF SAID FEEDSTOCK. WHEN A SMALL AMOUNT OF COLLOIDAL GRAPHITE IS ADDED TO THE PETROLEUM COKING STOCK HAVING LESS THAN 0.005% BY WEIGHT OF SPENT CRACKING CATALYST JUST BEFORE IT IS COKED, AN ADDITIONAL IMPROVEMENT IN THE COKE IS OBTAINED.

公开(公告)号：US2605640A

公开(公告)日：1952-08-05

申请号：US12029649

申请日：1949-10-08

Applicant: STANDARD OIL CO

Inventor： PARTCH JOHN G ,  DAY DONALD R ,  SCOVILL WARNER E

IPC: G01F23/02

CPC classification number: G01F23/02

公开(公告)号：CA962619A

公开(公告)日：1975-02-11

申请号：CA119202

申请日：1971-07-27

Applicant: STANDARD OIL CO OHIO

Inventor： SCOVILL WARNER E ,  DAY DONALD R

IPC: C10B55/00 ,  C25C7/02

Abstract: 1316737 Making coke from oil STANDARD OIL CO 17 Sept 1971 [2 Oct 1970] 43464/71 Heading C5E Coker feedstock containing from 0À01 to 1% b.w. solid spent catalyst is coked in a delayed coking process after the catalyst content has been reduced to not more than 0À005% b.w., e.g. by centrifuging or filtration. The feedstock may be decanted oil from a cracking process containing spent silica-alumina cracking catalyst, and the oil may be seeded with particulate colloidal graphite just before being coked. Catalyst fines removed from the oil may be regenerated and recycled to the cracker, and the coke may be calcined, mixed with coal tar pitch, extruded and baked, before being graphitized.