Back to results
US 6,855,244 B2Granted
Process for reducing coke agglomeration in coking processes
AssigneeExxonMobil Research and Engineering Company
InventorsMichael Siskin, Simon R. Kelemen
Life of this patent
Estimating the term…
Abstract
In an embodiment, the invention relates to a method for reducing coke agglomeration in petroleum streams derived from coking processes. In a preferred embodiment, the invention relates to a method for mitigating filter fouling from a coker gas oil by using a pusher gas substantially free of molecular oxygen.
Claims5
A method for reducing foulant agglomeration from a coker gas oil containing molecular oxygen, peroxides, or both, 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, the steam being substantially free of molecular oxygen;
- d) conducting the liquid hydrocarbon fraction back to the first separation region;
- and
- e) separating in the first separation region coker gas oil having a boiling point higher than the light fraction.
3 more elements
Dependencies are inferred from the claim text.