| 초록 |
Concerns about an increase in CO2 concentration in the atmosphere and its impact on climate change have caused a global research effort toward CO2 capture from large CO2 sources. In many different solid sorbent processes for CO2 capture, major problem is relatively higher sensible heat of solid sorbent than absorption-based CO2 capture process. A simulated moving bed (SMB) adsorption process with heat integration was suggested as an available option to reduce sensible heat for CO2 capture. Fixed bed used in SMB process has a potential to keep heat of reaction occurred during adsorption and to minimize size of bed compared with other solid sorbent processes. The proposed process was extended to multi-bed scale for continuous capture of CO2 and fully integrating of heat in the process. Internal heat exchanger model was applied to conventional mathematical model for SMB process. For accurate evaluation of the SMB process, rigorous energy calculation model was proposed. Optimized operating coditions of SMB process were investigated at the flue gas condition of 100 Nm3/hr. Sensitivity analysis of SMB process can be also guidance for designing SMB process and solid sorbent. |
