Experiment on the hydrate nucleation of liquid CO2 droplet

The object of the present study is to investigate the effect of pressure history of the water on CO2 hydrate nucleation. We measured the induction time which is the time from putting liquid CO2 droplet into the pressure chamber to forming the hydrate film to clarify the effect. Various conditions of ion-exchanged water was filled in a pressure chamber under 40 MPa and 277.6 K. In using water that had previously frozen as ice and melted at hydrate formation ( P, T) conditions or previously kept at hydrate formation ( P, T) for a long time, the hydrate formation was observed. (C) 2008 Elsevier Ltd. All rights reserved.