System for removing salt from a rich mono ethylene glycol stream

摘要

A system for, and method of, recovering salt from a rich mono ethylene glycol MEG stream includes a flash separator having a desanding hydrocyclone located in the hot MEG recycle loop of the flash separator; a first solids fluidization device located at the bottom end of the flash separator's brine column; a second desanding hydrocyclone arranged to receive a salt slurry stream created by the first solids fluidization device; and an accumulator located downstream of the second desanding hydrocyclone and having a second solids fluidization device located at its bottom end. Each solids fluidization device includes means for causing the motive fluid to exit the device in a swirling motion to fluidize the salt components contained in the resident fluid. The overflow from the second desanding hydrocyclone is the motive fluid for the brine column and a produced water, condensate water, or seawater stream is the motive fluid for the accumulator.

主权项

1. A system for removing salt from a rich MEG stream being fed into a flash separator, the system comprising:
a first desanding hydrocyclone located in a recirculation loop of the flash separator and arranged so an underflow of the first desanding hydrocyclone is introduced into a brine column of the flash separator; a first solids fluidization device arranged at a lower end of the brine column and in communication with a first motive fluid stream, the first solids fluidization device including means for causing the first motive fluid stream to swirl when exiting the first fluidization device; and a first removal device located above the first solids fluidization device and arranged to carry a first salt slurry stream created by the swirling motive fluid away from the brine column to a second desanding hydrocyclone located outside of the brine column.