Application of MEG regeneration and reclamation technology on offshore platform

The MEG regeneration and reclamation technology is successfully applied to offshore platform. The process includes MEG pre-treatment, regeneration and desalination. The pre-treatment section is designed to remove hydrocarbon from the rich MEG and divalent metal salts, which can generate precipitation by reacting with sodium hydroxide. Adopting distillation column, the MEG regeneration section operates at a pressure slightly above the atmospheric pressure, and the mass concentration of lean MEG solubility should be more than 80%. The key technology of the process is desalination, which uses a vacuum flash separator to crystallize and remove the high soluble one valence salts, and primarily sodium salts from the lean MEG. The MEG regeneration and reclamation package has good performance and less MEG loss. Therefore, it has a variety of applications in prospect.