MANUFACTURE OF PETROLEUM COKE

• US 3,852,047 A
• Filed: 02/23/1972
• Issued: 12/03/1974
• Est. Priority Date: 06/09/1969
• Status: Expired due to Term

• Current Assignee: Carroll L. Crawley, Harold C. Kaufman, Warren G. Schlinger
• Original Assignee: Carroll L. Crawley, Harold C. Kaufman, Warren G. Schlinger
• Inventors: Schlinger, Warren G., Kaufman, Harold C., Crawley, Carroll L.
• Primary Examiner(s): Meros, E. J.
• Application Number:
  US05/228,587
• Time in Patent Office: 1,014 Days
• Field of Search: 423/445,449,450 208/131,46,50,106 44/1,10,20,24 201/23
• US Class Current: 44/530
• CPC Class Codes: C10B 55/00 Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material cracking oils C10G
• CPC Class Codes: C10B 55/02 with solid materials
• CPC Class Codes: C10B 57/045 containing mineral oils, bitumen, tar or the like or mixtures thereof
• CPC Class Codes: Y10S 44/905 Method involving added catalyst

Abstract

Clusters of petroleum coke pellets are made by the steps of dispersing particulate carbon seed particles in a high boiling petroleum oil, heating the seeded oil in a coking heater under conditions of controlled cracking, and introducing the effluent from the heater into a coke drum where the seed particles serve as nucleating agents in the formation of clusters of petroleum coke pellets.

Claims

1. A PETROLEUM COKE COMPOSITION CONSISTING OF A CLUSTER OF SOLID PETROLEUM COKE SPHEROIDAL PELLETS, EACH PELLET HAVING A NUCLEUS AND AN OUTSIDE DIAMETER IN THE RANGE OF ABOUT 1/32 TO 1/4 INCH AND BEING AT LEAST PARTIALLY FUSED AND BONDED TO CONTINGUOUS PELLETS IN SAID CLUSTER WITH ABOUT 2 TO 30 WEIGHT PERCENT OF A SOLID ASPHALTIC-LIKE MATERIAL, AND SAID PETROLEUM COKE PELLETS AND SOLID ASPHALTIC-LIKE MATERIAL BEING SIMULTANEOUSLY PRODUCED BY THE DELAYED COKING OF A DISPERSION COMPRISING HIGH BOILING LIQUID PETROLEUM OIL CONTAINING DISPERSED THROUGHOUT ABOUT 0.01 TO ABOUT 0.5 WT. PERCENT MINUTE PARTICULATE CARBON SOOT SEED PARTICLES PRODUCED BY THE PARTIAL OXIDATION OF FOSSIL FUELS WHICH CONSTITUTE THE SAID NUCLEUS OF SAID PETROLEUM COKE PELLELTS AND WHICH HAVE A DIAMETER IN THE RANGE OF ABOUT 0.01 TO 0.5 MICRONS, AN OIL ABSORPTION NO. OF ABOUT 1-3 CC OF OIL PER GRAM OF CARBON SOOT, AND A SURFACE AREA OF ABOUT 300-1,000 SQUARE METERS PER GRAM;

AND WHEREIN SAID PETROLEUM COKE PELLETS WILL WITHSTAND A COMPRESSIVE LOAD OF 14 POUNDS MINIMUM WHEN A 1/8 INCH DIAMETER PELLET IS TESTED BY MEANS OF A CHATILLION LIGHT SPRING TESTER AND ARE FORMED AND FUSED TOGETHER BY MIXING 0.1 TO 4.0 WEIGHT PERCENT OF LIQUID WATER WITH SAID DISPERSION AND HEATING THE MIXTURE IN A HEATING ZONE OVER A TEMPERATURE RANGE OF ABOUT 650* TO 930**F. FOR ABOUT 1 TO 3 MINUTES TO CONTROL CRACKING, FOLLOWED BY DELAYED COKING AT A TEMPERATURE IN THE RANGE OF ABOUT 800* TO 895*F. AND A PRESSURE IN THE RANGE OF ABOUT 10 TO 60 PSIG.

2. The petroleum coke composition of claim 1 externally shaped in the form of a spheroid having a diameter in the range of about 1 to 6 inches and with a smooth outer surface.

3. The petroleum coke composition of claim 1 wherein said high boiling liquid petroleum oil also contains at least about 0.003 pounds of catalyst fines comprising aluminum oxide and silicon dioxide per gallon of said liquid petroleum feed.