摘要
复合干燥剂由于能够结合多种干燥剂优势而成为新型高效干燥剂研发的热点之一。以硅胶为基质、LiCl为吸湿盐以及具有一定吸湿能力的聚乙烯醇(PVA)为黏结剂制备LiCl/PVA/硅胶复合干燥剂涂层,考察不同LiCl浸渍浓度、PVA质量分数、入口空气湿度和再生温度条件下涂层的循环除湿特性。结果表明,不同实验条件下涂层均具有良好的循环稳定性,循环除湿量随LiCl浸渍浓度、空气湿度和再生温度的提高而增大,随PVA质量分数的增大而减小。
Composite desiccants have received extensive research attention due to their advantages in combining each component.In this paper,LiCl/PVA/silica gel composite desiccant coatings were prepared by using silica gel as substrate,LiCl as hygroscopic salt and polyvinyl alcohol(PVA)with certain hygroscopic ability as the adhesive.The cyclic dehumidification characteristics of the coatings were experimentally investigated under different conditions,including LiCl impregnation concentration,PVA mass fraction,inlet air humidity and regeneration temperature.Results show that the coatings can achieve good cyclic stability even at different experimental conditions.The cyclic dehumidification capacity increases with the increased LiCl impregnation concentration,air humidity,and regeneration temperature but decreasing with the increase of PVA mass fraction.
作者
周承喆
刘林
李军
邓立生
黄宏宇
罗向龙
ZHOU Cheng-zhe;LIU Lin;LI Jun;DENG Li-sheng;HUANG Hong-yu;LUO Xiang-ong(School of Material and Energy,Guangdong University of Technology,Guangzhou 510006,China;Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China;CAS Key Laboratory of Renewable Energy,Guangzhou 510640,China;InnovationAcademy of South China Sea Ecology and Environmental Engineering,ChineseAcademy of Sciences,Guangzhou 510301,China)
出处
《新能源进展》
CSCD
2023年第3期213-220,共8页
Advances in New and Renewable Energy
基金
广东省重点领域研发计划项目(2020B0202010004)
中国科学院可再生能源重点实验室基金项目(2021000018)
广州市科技计划项目(202102020235)
中国科学院南海生态环境工程创新研究院自主部署项目(ISEE2021ZD04)。
关键词
固体除湿
复合干燥剂
干燥剂涂层
除湿特性
solid dehumidification
composite desiccants
desiccant coating
dehumidification characteristics
