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http://dx.doi.org/10.7846/JKOSMEE.2012.15.2.067

Experimental Study on N2 Impurity Effect in the Pressure Drop During CO2 Mixture Transportation  

Cho, Meang-Ik (Korea Ocean Research & Development Institute)
Huh, Cheol (Korea Ocean Research & Development Institute)
Jung, Jung-Yeul (Korea Ocean Research & Development Institute)
Baek, Jong-Hwa (Korea Ocean Research & Development Institute)
Kang, Seong-Gil (Korea Ocean Research & Development Institute)
Publication Information
Journal of the Korean Society for Marine Environment & Energy / v.15, no.2, 2012 , pp. 67-75 More about this Journal
Abstract
Carbon-dioxide capture and storage (CCS) process is consisted by capturing carbon-dioxide from large point source such as power plant and steel works, transporting and sequestrating captured $CO_2$ in a stable geological structure. During CCS process, it is inevitable of introducing impurities from combustion, capture and purification process into $CO_2$ stream. Impurities such as $SO_2$, $H_2O$, CO, $N_2$, Ar, $O_2$, $H_2$, can influence on process efficiency, capital expenditure, operation expense of CCS process. In this study, experimental apparatus is built to simulate the behavior of $CO_2$ transport under various impurity composition and process pressure condition. With this apparatus, $N_2$ impurity effect on $CO_2$ mixture transportation was experimentally evaluated. The result showed that as $N_2$ ratio increased pressure drop per mass flow and specific volume of $CO_2-N_2$ mixture also increased. In 120 and 100 bar condition the mixture was in single phase supercritical condition, and as $N_2$ ratio increased gradient of specific volume change and pressure drop per mass flow did not change largely compared to low pressure condition. In 70 bar condition the mixture phase changed from single phase liquid to single phase vapor through liquid-vapor two phase region, and it showed that the gradient of specific volume change and pressure drop per mass flow varied in each phase.
Keywords
CCS; Carbon Dioxide; Nitrogen Impurity; Pipeline Transporation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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