In this work, the rotating liquid sheet (RLS) contactor was used as a new contactor device for the separation of CO₂ content from CO₂/N₂ gas mixtures by pure water, MDEA and DEA solutions. To do so, an RLS module with a helical slot in the wall of central tube was designed to provide a single continues helical liquid sheet with high levels of the liquid–gas contact area. Subsequently, the influence of various operating parameters including gas flow rate, CO₂ inlet concentration and solvent concentration was investigated. The obtained results clearly revealed that separation efficiency could reach higher than 95% by DEA solution. Also, experimental observations proved that with increasing the gas flow rate and CO₂ inlet concentration, the absorption flux increases while the separation efficiency reduces. In addition, the CO₂ removal process can be improved by increment solvent concentration. Further, as a unique advantage, tube rotation intensified mass transfer from the gas stream into the liquid absorbents.

在这项工作中，旋转液片 (RLS) 接触器被用作一种新的接触器装置，用于通过纯水、MDEA 和 DEA 溶液从 CO ₂ /N ₂气体混合物中分离 CO ₂含量。为此，设计了一个在中心管壁上带有螺旋槽的 RLS 模块，以提供具有高液气接触面积的单个连续螺旋液体层。随后，研究了包括气体流速、CO ₂入口浓度和溶剂浓度在内的各种操作参数的影响。所得结果清楚地表明，DEA 溶液的分离效率可达到 95% 以上。此外，实验观察证明，随着气体流速和 CO ₂入口浓度，吸收通量增加，而分离效率降低。此外，可以通过增加溶剂浓度来改进CO ₂去除过程。此外，作为一个独特的优势，管子旋转加强了从气流到液体吸收剂的传质。