HYDRATE FORMATION IN SEDIMENTS IN THE SUBSEABED DISPOSAL OF CO2

Sub-seabed disposal is the safest disposal option for CO2. Water press ure and dilution into oceanic water prevent direct emission of CO2 int o the air. Sediments under the deep sea floor are usually cool because the deep oceanic water is very cool. CO2 hydrate forms in the sedimen ts in areas of the sea floor deeper than 300 m. The formation of CO2 h ydrate in sediment pores almost completely prevents the escape of CO2. Copyright (C) 1996 Elsevier Science Ltd.