We have sent samples of the glycol to the lab twice thinking we may have some DEG, TEG, or an amine and both samples came back as over 99.6% EG. Our regen temperature and hydrometer readings show that we are right around 80 wt%EG. We are confident the EG is OK, but the plant will only get cold...
We have a natural gas refrigeration plant that should operate at -20F so we inject 80% ethylene glycol for hydrate inhibition. When the EG is present the plant will warm to about 5F and the EG seems to dam up in the system. If we inject MeOH instead of EG the plant will operate at -20F. Once...
