Search

Abstract: The development of cost-effective and safe CO2 transport solution is important issue for fully integrated CCS projects. Recently there have been studies on CO2 marine transport, some of which sought to improve general understanding of CO2 marine transport and some tried to provide better solution for a specific project. This paper assesses CO2 compression and transport considering geological condition of South Korea and assumed scenarios for Korea CCS projects. For flexible operation and stable CO2 injection, CO2 import terminal near injection site is introduced. Based on the results of comparison study, CO2 shipping is recommendable for individual fully integrated demonstration projects and CO2 shipping can be cost-effective for transporting large amount of CO2 in CO2 network connecting multi-sources and/or multi-storages. This paper suggests one of a solutions for CO2 marine transport in South Korea and some of suggestions in this study and the study results can be adopted for other projects in different environmental conditions as well. [Copyright &y& Elsevier]

Abstract: For most CCS projects, captured CO2 is transported by pipeline, in contrast to shipping it, which has only been introduced as a secondary option for long distances and small amounts. This paper provides some possible alternatives to reduce the total cost of CCS through CO2 shipping. The benefits of HP pump in power consumption is considered and a new total CCS chain is suggested, which can be divided into capture, liquefaction (or compression to supercritical fluid), transport by ship, compression by HP pump, and storage. With a highly efficient liquefaction process, CO2 shipping costs can be reduced under a new total CCS chain. The results of our study show that an optimal size needs to be adopted for each CCS project, enabling CO2 shipping to be more cost efficient. DSME has developed a concept design for a large CO2 carrier that has the potential to be more cost-effective than conventional transport. Therefore, CO2 transport by ship should now be seriously re-considered as an effective transport method on a project-by-project basis. [Copyright &y& Elsevier]