Umer Zahid

Effect of Liquefaction Plant Performance and Location on the Cost of CO2 Transport

Abstract Carbon capture and storage (CCS), a key technology for addressing global warming is in between demonstration to commercialization phase. Transportation of CO 2 is required since storage sites are not necessarily present under the source sites. Ships can be used for long distance transport of CO 2 ; liquefaction being a vital component in ship transportation. In this study, a state of art CO 2 liquefaction process has been designed by taking account of source facilities (i.e. post-combustion and pre-combustion). The proposed liquefaction process offers lower liquefaction energy requirement compared with other available literature. Three different scenarios for post-combustion and pre-combustion each have been studied on the basis of liquefaction plant location. The considered scenarios are categorized as: a) capture site, liquefaction plant and shipping terminal are located close to each other; b) capture site and liquefaction plant are far from shipping terminal; c) capture site is far from liquefaction plant and shipping terminal. Finally, an economic analysis is performed in order to evaluate the feasibility of CO 2 transport from source sites to ship loading terminal including liquefaction plant.

Choosing the suitable Carbon dioxide Storage Location in Sedimentary Basins of Korea

The average CO2 emission growth rate of Korea is 1.4% which is second highest among OECD countries. The Korean government plans to start CO2 injection by 2018, so in order to develop ready to inject sequestration site by that time, there is a need to assess storage sites technically, economically, and from safety point of view. Three potential basins namely Kunsan, Jeju and Ulleung are thought to have good CO2 storage capacity in Korea. In this study, CO2 storage potential in sedimentary basins of Korea is calculated along with their economic analyses. The results show that Ulleung basin has the maximum storage capacity and low storage cost among other basins. These results provide the basis for decision making while selecting storage site for commercial sequestration that offer maximum storage capacity and least storage cost.