A METHOD FOR CLEANING FOULED VESSELS IN THE PARAFFINIC FROTHTREATMENT PROCESS

摘要

A method of cleaning fouled vessels in the paraffinic froth treatment proces s (PFT). The foulant comprises asphaltenes. Foulant is at least partially removed from a surface of a vessel or conduit used in a PFT process by spraying a liquid against the foulant on the surface to physically remove at least a portion of the foulant from the surface. The liquid may be a PFT-compatible liquid, water, or a combination thereof. The method may be effected in the substantial absence of a foulant-dissolving agent.