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Innovative reverse-electrodialysis power generation system for carbon capture and utilization
Kim, Hanki,Kim, Young-Eun,Jeong, Nam-Jo,Hwang, Kyo-Sik,Han, Ji-Hyung,Nam, Joo-Youn,Jwa, Eunjin,Nam, Sung-Chan,Park, Sung-Youl,Yoon, Yeo-Il,Kim, Chan-Soo Elsevier 2017 Journal of CO2 Utilization Vol.20 No.-
<P><B>Abstract</B></P> <P>Global warming has become a serious threat biosphere and effective measures are required to mitigate its intensification. To this end, carbon capture and sequestration (CCS) is a promising technology, while post-combustion capture (PCC) has been developed from CCS. However, an energy penalty during the regeneration step of the CO<SUB>2</SUB> absorbent has remained a critical problem. In the present study, a lab-scale test was conducted on carbon capture with reverse-electrodialysis (CCRED) to evaluate its potential to overcome the technical and economic drawbacks of CCS and RED. The results show that a normalized peak power density of 1W/m<SUP>2</SUP>, equal to 328.6kJ/kgCO<SUB>2</SUB>, could be obtained. The peak power density was 2000-fold higher than that in previous studies. By utilizing CO<SUB>2</SUB> as an energy source in CCRED, this novel process can compensate for the energy penalty in conventional CCS.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Lab-scale carbon capture with reverse-electrodialysis (CCRED) test was conducted to overcome the drawbacks of CCS and RED. </LI> <LI> Normalized peak power density of 1W/m<SUP>2</SUP>, equal to 328.6kJ/kgCO<SUB>2</SUB>, could be obtained from lab-scale CCRED unit. </LI> <LI> The peak power density was 2000-folded higher than in previous studies. </LI> </UL> </P>