Making Strides in Studying Seafloor CO2 Sequestration

Abstract

There are a variety of options to mitigate climate change, such as improved energy efficiency, the switch to less carbon-intensive fuels, renewable energy, nuclear power, and carbon dioxide capture and storage (CCS). The Korea Ocean Research & Development Institute (KORDI) has been focusing on developing technologies for offshore, underground geological storage of carbon dioxide since 2005. The physical and chemical properties of carbon dioxide and carbon dioxide hydrate are the most important parameters in developing carbon dioxide transport and storage. A preliminary design of a deep- sea injection system for carbon dioxide ocean sequestration was also created. Systems for liquid transport, liquid storage and liquid injection were conceptually determined for the functional requirement. Despite the well known roles of carbon dioxide in biochemical responses and ecological processes, its effects on the metabolic activities and biological rhythm of marine organisms' oxygen consumption have not been well described.