Ionic Liquid Desiccant Deep Dehumidification Technology and Its Application Exploration
Liquid desiccant deep dehumidification(LDDD)is an excellent way to achieve low-carbon transformation of low humidity industrial buildings.Currently,ionic liquids(ILs)with extremely low vapor pressure,non crystallization,and non-corrosion are ideal substitutes for salt so-lutions in traditional LDDD.In this work,the ionic liquid desiccant deep dehumidification experimental platform established and the dehumidification performance is analyzed under different operating conditions.The results show that both falling-film and bubble absorption modes can achieve high deep dehumidification effects,and the minimum outlet humidity ratio can be reduced to below 2.0 g/kg(da).Meanwhile,for low humidity conditions with an inlet humidity ratio of 3.3 g/kg(da),the dehumidification efficiency of the falling film absorption-based device is only about 40％.However,the dehumidification efficiency of the bubble absorption-based device can reach 81％,effectively devel-oping the deep dehumidification potential of IL.In addition,the advantages of two absorption modes are summarized to provide guidance for the application of IL deep dehumidification technology.
deep dehumidificationionic liquiddehumidification performanceexperimental study
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