| 초록 |
With growing concern about CO2 as greenhouse gas, Carbon Capture and Storage (CCS) is considered to be the most practical approach for reducing CO2 emission in near future. Previous CCS research has mainly focused on efficient capture and storage methods. However, there is a relative lack of studies on transport. Thus, this study addresses the issue by modeling of the processes for ship-based transport due to its flexibility compared to the regional constraints of pipelines. Ship-based transport of CO2 consists of liquefaction, loading, maritime transport, and offshore unloading processes. A key to the design of transport chain is to determine liquefaction process because this has a decisive effect on the energy requirement of whole chain processes. Therefore, this study systematically investigates the liquefaction process by modeling and simulation solving some fastidious trade-off problems. In particular, optimal compression ratio and heat integration, dehydration, cooling water are investigated to provide essential guidelines for minimum energy requirement of liquefaction process. |
