Adsorption/desorption of CO_2 on Activated Carbon Fibers Using Electric Swing Adsorption

摘要

An electric swing adsorption (ESA) process for recovering highly pure CO_2 from the mixed gases was tested.In this study,activated carbon fibers were used as an adsorbent.The activated carbon fibers showed fast adsorption rate and the high adsorption capacity for CO_2 adsorption under the condition of the ambient pressure.Activated carbon fiber with higher specific surface area was suitable to repeated adsorption-desorption cycle process,showing consistent breakthrough curve.Especially,the regeneration method by vacuum combined with ESA improved the performance of desorption process by an additional 17% regeneration efficiency compared to a vacuum only method,and showed the high regeneration efficiency at comparatively low 7-8 Wh energy.