GHG削減に貢献する日揮グループの開発技術：HiPACT^®/DDR Membrane

抄録

The reduction of carbon dioxide （CO₂）, which is said to be one of the causes of global warming, has become an important issue to achieve "Carbon Neutral" in this world. In order to effectively reduce CO₂ emissions, various investments in environmental technologies are needed. One of these innovative technologies is Carbon Dioxide Capture and Storage （CCS）, which captures and stores CO₂ emitted from industrial sectors, and Carbon Dioxide Capture, Utilization and Storage （CCUS）, which effectively utilizes this CO₂. We have developed two technologies to promote CCS/CCUS, HiPACT^® and DDR membrane.

HiPACT^® recovers CO₂ at high pressures from natural gas and synthesis gas, enabling cost reduction and energy saving in CCS. HiPACT^® has been jointly developed with BASF SE. A demonstration test has been successfully completed in Japan and the commercial plant has been built in Serbia.

DDR membrane is a high-efficiency CO₂ separation process using a DDR-type zeolite membrane. It is suitable for CO₂ separation from associated gas deriving from CO₂Enhanced Oil Recovery （EOR） which is one of the CCUS and natural gas with high CO₂ content. DDR membrane can enhance product yields because of very high selectivity for CO₂/CH₄. This technology is jointly developed by JGC Corporation and NGK Insulators, Ltd. A large-scale demonstration test is now on going in the United States of America.