Construction of Three-Dimensional Moisture Swing Adsorption Cycle and Energy Efficiency Analysis
Moisture swing adsorption(MSA)method uses water as a lever to efficiently drive direct air carbon capture.At present,its cycle theory and energy efficiency research are relatively scarce.In this paper,MSA process is analyzed from the perspective of thermodynamic cycle,and a 6-step MSA cycle is constructed in the three-dimensional coordinate system of temperature,humidity,and adsorption capacity.Ideal specific energy consumption,thermodynamic efficiency and adsorbent efficiency of basic isothermal MSA cycle and the 6-step MSA cycle are compared,and the effects of temperature and humidity on each indicator are analyzed.Under the adsorption condition of 25℃ and 30％RH,the introduction of temperature swing process can reduce capture energy consumption by 28％at most,and increase the limit of thermodynamic efficiency by 119％.
direct air capturemoisture swing adsorptionthermodynamic cycleenergy efficiency analysis
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维普
