SYSTEM FOR PURIFYING CRUDE OILS

摘要

The invention relates to removing contaminants from oil using solid sorbents that are comprised primarily of carbon and preferably of coke particles. The coke particles have an affinity for contaminants in oil and are sized to be filtered from oil without plugging. Most contaminants have such a small size that they tend to plug up filters. As the contaminants agglomerate onto the solid sorbent, the resulting particles form a filter cake on conventional filter materials in such a way as to allow the oil to pass on through without significant pressure drop or delay.

主权项

1. A system for removing contaminants from crude oil comprising:
a) a contaminant adsorption vessel arranged for crude oil to enter and exit and for the crude oil to have at least a portion of its contaminants removed while in the contaminant adsorption vessel; b) a feed for delivering crude oil into the contaminant adsorption vessel, c) a feed for delivering solid sorbent into the contaminant adsorption vessel; d) a mixing element for distributing the solid sorbent throughout the crude oil so that the contaminants agglomerate/adsorb on the solid sorbent; e) a filter for separating the crude oil from the solid sorbent where the crude oil has reduced contaminant content and the solid sorbent has contaminants agglomerated thereon; f) a crude oil outlet downstream of the filter; and g) a solid sorbent outlet arranged upstream of the filter.