Projects
Hydrate inhibition strategies for gas fields
● Requried MEG concentration is 25 wt%, resulting lean MEG (80wt%) injection 10932.7 kg/h.
● Kinetic Hydrate Inhibitor (KHI) is preferred below MEG concentration 20 wt%
● PVCap based KHI prevented hydrate formation for 20 hrs. (c.f. Fuilds residence time – 4.7 h)
CO2 storage tanks
● Korean companies are seeking foreign CO2 injection sites
● SK E&S will join Baye-Undan CCS operated by Santos by transporting captured CO2 in KOREA
● Liquid CO2 is stored in stored in storage tanks under – 50℃ and 7 bar until it reaches Darwin CO2 hub
DongHae CCS Project
● Issue 1. Composition of CO2 gas stream is not fixed yet, CO2 hub platform is under consideration.
● Issue 2. Operation pressure of transport pipelines is not fixed yet, under analysis with OLGA.
● Issue 3. Hydrate formation risk is not analyzed thoroughly yet for both pipeline and WBH.
Dry ice formation experiments
● Autocalve was filled with liquid CO2 and blowdown is commenced at triple point.
● When liquid CO2 reaches – 57℃, solid particles were observed in liquid phase.
● Temperature reached – 78℃ due to JT cooling and solid CO2 was formed from gas-liquid interface.