Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon
Patent
1981-05-28
1983-09-27
Straub, Gary P.
Chemistry of inorganic compounds
Carbon or compound thereof
Elemental carbon
208208R, 201 17, 423444, 423460, C01B 5700, C01B 3126, C09C 156, C01B 3102
Patent
active
044068727
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.
REFERENCES:
patent: 2717868 (1955-09-01), Gorin et al.
patent: 2739105 (1956-03-01), Ford et al.
patent: 3009781 (1961-11-01), Johnson et al.
patent: 3598528 (1971-08-01), Franz et al.
patent: 4011303 (1977-03-01), MacGregor
patent: 4160814 (1979-07-01), Hardin et al.
patent: 4203960 (1980-05-01), Bauer et al.
The Oil and Gas Journal, Jan. 22, 1979, pp. 64-68, "Thermal Process is Developed for Petroleum Coke Desulfurization," by Fernando Manzanilla Sadilla, Oliverio Moreno LaMonte, M. C. Sze, and W. V. Bauer.
Kapner Robert S.
O'Brien Robert
Diamond West Energy Corporation
Straub Gary P.
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