基于离子液体的深度除湿技术及应用探索
Ionic Liquid Desiccant Deep Dehumidification Technology and Its Application Exploration
曹博文 1殷勇高 2Giannetti Niccolo 3Saito Kiyoshi4
作者信息
- 1. 东南大学能源与环境学院,南京 210096;低碳型建筑环境设备与系统节能教育部工程研究中心,南京 210096;早稻田大学基础科学与工程研究生院,东京169-0072
- 2. 东南大学能源与环境学院,南京 210096;低碳型建筑环境设备与系统节能教育部工程研究中心,南京 210096
- 3. 早稻田大学早稻田高等研究所,东京169-8050
- 4. 早稻田大学应用力学和航空航天工程系,东京169-8555
- 折叠
摘要
液体深度除湿是实现低湿度行业低碳转型的一种有效途径.目前,具有深度除湿潜力(极低蒸气压、非结晶和无腐蚀)的离子液体是传统盐溶液的理想替代.本研究搭建了离子液体深度除湿实验平台,并分析了不同运行工况下的除湿性能.结果表明:降膜/鼓泡吸收方式均能实现较高的深度除湿效果,最低出风含湿量可降至2.0 g/kg(da)以下.同时,对于进口含湿量为3.3 g/kg(da)的低湿工况,降膜装置的除湿效率仅为40％左右.然而,鼓泡装置的除湿效率可达到81％,有效开发了离子液体的深度除湿潜力.此外,总结了两种吸收方式的先进性与适用性,为离子液体深度除湿技术的应用提供指导.
Abstract
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.
关键词
深度除湿/离子液体/除湿性能/实验研究Key words
deep dehumidification/ionic liquid/dehumidification performance/experimental study引用本文复制引用
基金项目
国家自然科学基金项目(52076039)
江苏省研究生科研与实践创新计划项目(KYCX23_0270)
出版年
2024
NETL
NSTL
万方数据