System and Method For PH Control Of Lean MEG Product From MEG Regeneration and Reclamation Packages

摘要

A lean MEG stream having a first pH level is contacted with a CO2-rich gas stream to yield a lean MEG product having a second different and lower pH level preferably in a range of 6.5 to 7.0. The system and method can be readily incorporated into a slipstream MEG recovery package, with a source of the lean MEG stream being a MEG regeneration section of the package. The CO2-rich gas could be a vented CO2 stream from the MEG reclamation section of the package. Unlike hydrochloric and acetic acid overdosing, CO2 overdosing of the lean MEG stream does not lead to rapid acidification of the lean MEG product to be stored or injected.

主权项

1. A system for adjusting a pH level of a MEG stream, the system comprising:
a vessel having an inlet to receive a MEG stream and ported to receive a CO2-rich gas, the MEG stream and CO2-rich gas coming into contact with one another within the vessel.