CaCl2/蛭石与LiCl/蛭石吸附性能研究  

Study on adsorption properties of CaCl2/vermiculite and LiCl/vermiculite

作　　者：赵惠忠[1] 黄天厚 雷敏 刘涛[1] 张敏[2] ZHAO Hui-zhong;HUANG Tian-hou;LEI Min;LIU Tao;ZHANG Min(Merchant Marine College,Shanghai Maritime University,Shanghai 201306,China;College of Food Science and Technology,Shanghai Ocean University,Shanghai 201306,China)

机构地区：[1]上海海事大学商船学院,上海201306 [2]上海海洋大学食品学院,上海201306

出　　处：《应用化工》2021年第1期100-103,109,共5页Applied Chemical Industry

基　　金：国家自然科学基金面上项目(50976073);上海市教育委员会科研创新重点项目(13ZZ121)。

摘　　要：采用干浸渍法制备复合吸附剂CaCl2/蛭石、LiCl/蛭石。在25℃,70%的相对湿度条件下,对不同样品的孔径分布、颗粒尺寸、盐含量、循环稳定性以及吸附性能进行了研究。结果表明,复合吸附剂CaCl2/蛭石以1∶1比例配制时吸附性能最佳;较小颗粒尺寸能够有效提高复合吸附剂的吸附性能,LiCl/蛭石样品、CaCl2/蛭石样品尺寸≤1 mm,比2~3 mm的样品分别提高了8.53%,13.23%。无机盐与蛭石的复合样品稳定性好,在循环测试样品时,其水蒸气吸附量与平均值最大相差9.96%,最小相差1.55%。该实验可以为太阳能空气取水吸附剂的选择与应用提供基础数据。The composite adsorbents CaCl 2/vermiculite and LiCl/vermiculite were prepared by the dry impregnation method.The pore size distribution,particle size,salt content,cyclic stability,and adsorption performance of different samples were studied at 25℃and 70%relative humidity.The results are as follows:the composite adsorbent CaCl 2/vermiculite has the best adsorption performance in a 1∶1 ratio.Selecting a sample with a smaller particle size can effectively improve the adsorption performance of the composite adsorbent.The size of the LiCl/vermiculite sample and CaCl 2/vermiculite sample≤1 mm increased by 8.53%and 13.23%compared with the sample of 2~3 mm size.The composite sample of inorganic salt and vermiculite has good stability.When the sample is cyclically tested,the maximum difference between the water vapor adsorption amount and the average value is 9.96%,and the minimum difference is 1.55%.This experiment can provide basic data for the selection and application of solar air water absorbent.

关 键 词：吸附剂 蛭石 吸附性能 空气取水 

分 类 号：TQ02[化学工程] TQ031.2