Design and performance evaluation of a novel system integrating Water-based carbon capture with adiabatic compressed air energy storage

Unraveling the Potential of Electrochemical pH-Swing Processes for Carbon Dioxide Capture and Utilization

“…In instances where water served as the adsorption fluid, thermodynamic analysis of the CO 2rich air indicated that the mass flow of circulating water necessary for CO 2 absorption surpasses that of flue gas by over 25 times, despite the reduced CO 2 partial pressure. 6 This investigation also unveiled that the energy consumption for CO 2 capture stood at ∼350 kWh/t-CO 2 , marking a 60−70% reduction compared to amine-based capture technologies requiring ∼1000 kWh/t-CO 2 . 7 Selectivity and adsorption capacity are crucial performance metrics.…”

“…In water-based CO 2 capture methods, the volume of water required for CO 2 capture under ambient pressure is notably higher due to the lower CO 2 partial pressure. In instances where water served as the adsorption fluid, thermodynamic analysis of the CO 2 -rich air indicated that the mass flow of circulating water necessary for CO 2 absorption surpasses that of flue gas by over 25 times, despite the reduced CO 2 partial pressure . This investigation also unveiled that the energy consumption for CO 2 capture stood at ∼350 kWh/t-CO 2 , marking a 60–70% reduction compared to amine-based capture technologies requiring ∼1000 kWh/t-CO 2 .…”

“…In addition, as the temperature rises, the gas solubility decreases, necessitating additional circulating water for effective CO 2 capture. This leads to increased power consumption for water pumping . The CO 2 equilibrium state differs in open and closed systems, contingent on exposure to air or confinement within the cell.…”

“…This leads to increased power consumption for water pumping. 6 The CO 2 equilibrium state differs in open and closed systems, contingent on exposure to air or confinement within the cell.…”

Multi‐stage stochastic dual dynamic programming to low‐carbon economic dispatch for power systems with flexible carbon capture and storage devices

“…Ref. [26] designed a system integrating water‐based carbon capture with an adiabatic compressed air energy storage system to reduce the energy consumption of water‐based carbon capture technology. The operation of a power plant with CCS is modelled as multi‐period stochastic programming to maximize the daily profit, which is solved by approximate dynamic programming [27].…”