Estimation of CO2 Transport Costs in South Korea Using  a Techno-Economic Model

Kang, Kyung‐Hwa; Seo, Youngkyun; Chang, Daejun; Kang, Seong-Gil; Huh, Cheol

doi:10.3390/en8032176

Cited by 17 publications

(8 citation statements)

References 21 publications

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“…When transporting CO 2 to a pipe, a variable CO 2 transportation network is required for the flexible operation of the CCS chain, which is technically challenging [7,8]. Considering the flexibility of CO 2 carriers, however, the significance of carriers is likely to increase in the near future [9][10][11][12][13]. A CO 2 terminal is required when multiple sources and storage sinks are linked or when pipelines and carriers are linked in the CCS transportation chain [14][15][16][17].…”

Section: Of 18mentioning

confidence: 99%

Conceptualization of CO2 Terminal for Offshore CCS Using System Engineering Process

Noh¹,

Kang²,

Huh

et al. 2019

Energies

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In this study, the basic configuration and operation concept of a CO2 terminal were identified by conducting a system engineering process. The performance goal of a CO2 terminal was determined by requirement analysis. Then, functions and timelines were derived by functional analysis to meet the performance goal. Equipment to perform the functions were defined and finally, a process flow block diagram of the CO2 terminal was acquired. The CO2 terminal in this study consisted of three parts. First, the CO2 loading/unloading part is responsible for liquid CO2 unloading from the carrier and loading vapor CO2 onto the carrier. Secondly, the liquid CO2 transmission part extracts liquid CO2 from the storage tanks and increases the pressure until it satisfies the offshore pipeline transportation condition. The vapor-treatment part collects boil-off gas, generates vapor CO2, and charges the storage tanks with vapor CO2 to control the pressure of the storage tanks that discharge liquid CO2. Finally, the study results were compared with a liquefied natural gas (LNG) terminal. The biggest difference between the CO2 terminal in this study and the LNG terminal is that a vaporizer is essential in the CO2 terminal due to the smaller storage capacity of the CO2 terminal and, therefore, the lower amount of boil-off gas.

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Section: Of 18mentioning

confidence: 99%

Conceptualization of CO2 Terminal for Offshore CCS Using System Engineering Process

Noh¹,

Kang²,

Huh

et al. 2019

Energies

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“…The longer the pipeline is, the more losses it generates, and thus it requires more devices that will raise the pressure of carbon dioxide flow [17,20]. The cost of transport decreases with increasing amount of carbon dioxide transfer (Fig.…”

Section: Transportmentioning

confidence: 99%

Cost analysis of geological sequestration of CO₂

Kosowski

Kuk

2016

drill

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“…This implies that the operating conditions associated with the critical point and near-critical regions may occur during the transportation and injection processes, which are intermediate steps, because of the phase difference between the captured CO 2 and stored CO 2 . In a previous study [2][3][4] by the authors of this paper, a depleted gas field in the East Sea of Korea was studied as a storage reservoir. Near-critical point flow and supercritical state flow of CO 2 were found to occur in the topside pipeline of the offshore platform and the upper part of the injection wellbore at a specific injection point, thereby causing flow instability in the pipeline [5].…”

Section: Introductionmentioning

confidence: 99%

Instability Analysis of Supercritical CO2 during Transportation and Injection in Carbon Capture and Storage Systems

Min

Kang²,

Huh

2018

Energies

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Captured CO2 is in a subcritical state, whereas CO2 deep underground is in a supercritical state because of the high geothermal heat and pressure. The properties of CO2 can change rapidly at the critical point and in the near-critical region during the transportation and injection process. This study aims to identify the instabilities in the CO2 flow in these regions, along with the causes and effects, during the transportation and injection process, and propose relevant design specifications. Thus, the critical points and near-critical region of CO2 flow were numerically analyzed. The unstable region is presented in terms of temperature and pressure ranges, and the changes in the CO2 properties in this region were analyzed. In the unstable region, the sudden change in density was similar to the density wave oscillation of a two-phase flow. The CO2 stability map we obtained and the stability map of supercritical water show similar trends. Flow instability was also found to occur in standard CO2 transportation pipelines. We demonstrate that flow instability in CO2 transportation and injection systems can be avoided by maintaining the proposed conditions.

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Estimation of CO2 Transport Costs in South Korea Using a Techno-Economic Model

Cited by 17 publications

References 21 publications

Conceptualization of CO2 Terminal for Offshore CCS Using System Engineering Process

Conceptualization of CO2 Terminal for Offshore CCS Using System Engineering Process

Cost analysis of geological sequestration of CO₂

Instability Analysis of Supercritical CO2 during Transportation and Injection in Carbon Capture and Storage Systems

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