Robert J O'Brien

US Patent:

44068727, Sep 27, 1983

Filed:

May 28, 1981

Appl. No.:

6/267782

Inventors:

Robert S. Kapner - West Caldwell NJ
Robert O'Brien - Woodside NY

Assignee:

Diamond West Energy Corporation - New York NY

International Classification:

C01B 5700
C01B 3126
C09C 156
C01B 3102

US Classification:

423461

Abstract:

Delayed coke is desulfurized by first contacting the coke with an active sulfur-bearing gas at a temperature high enough to produce a reaction between the sulfur in the coke and the active sulfur in the gas, and then holding the coke in contact with the gas at said high temperature for approximately one hour. An alternative process provides for desulfurization of delayed coke by modifying the second step of the prior process to dilute or replace the sulfur-bearing gas with an inert gas. In a third alternative, the foregoing process is further modified by lowering the temperature during the second or holding step to maintain the reaction between the sulfur-bearing gas and the coke.