Optimization of Carbon Dioxide Capture Using Sorbent-Loaded Hollow-Fiber Modules

The performance of sorbent-loaded hollow-fiber modules to capture carbon dioxide from the exhaust stream of a thermal power plant is analyzed. The hollow-fiber modules undergo a Rapid Temperature Swing Adsorption (RTSA) process to capture carbon dioxide. A detailed heat and mass transfer model is developed to simulate the performance of the fiber module. The thermal wave technique for heat recovery is incorporated to reduce the thermal energy consumption and reduce operating costs. A parametric study of six key operating parameters is presented, and tradeoffs in performance metrics with variations in operating parameters are discussed. The proposed process compares favorably with other adsorption-based carbon capture technologies.