Patent ID: 6787024
Filing Date: 2004-09-07
Classification: C10G,Y10S

Abstract:
A method for reducing foulant from a coker gas oil containing molecular oxygen and peroxides, which method comprises:a) conducting an effluent stream from a coking process to a first separation region; b) separating at least a light fraction in the first separation region; c) conducting steam and the light fraction to a second separation region and separating a vapor fraction and a liquid hydrocarbon fraction having a peroxide concentration; d) conducting the liquid hydrocarbon fraction having a peroxide concentration back to the first separation region; e) separating in the first separation region the coker gas oil having a boiling point higher than the light fraction and containing oligomers; and (f) heating the coker gas oil to a temperature and for a time sufficient to decompose the oligomers.