D208 ガスリフト効果を利用した二酸化炭素の深海送り込み技術 : GLADシステム(OS12 温暖化対策とCO2削減技術)

抄録

In order to mitigate global warming, a system dissolving huge amount of CO_2 gas captured from fossil fuel fired power plants into the ocean with high acceptance by the ocean environment is indispensable. We propose a sequestration system of CO_2 in the deep ocean water using gas-lift effects (so-called GLAD System). The system is an inverse-J pipeline set in the ocean at a depth of 200-3000 m. In the system, a pumping effect by buoyancy of the dissolving CO_2 bubbles is used to transport CO_2-rich seawater to great depths. In the present paper, we outline the GLAD system and summarize its related fundamental studies for the purpose of designing a highly-efficient and most-reliable system.