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摘 要： 本文解决了传统复合吸附剂容易腐蚀以及粉碎的缺点。不同类型的粗孔硅胶与氯化锂盐复合制备了一系列硅胶。实验主要有以下内容。（1）测定了各种硅胶可复合的盐含量，观察新型复合吸附剂与传统复合吸附剂的腐蚀性。（2）测试纯硅胶与复合吸附剂的孔结构。（3）测试纯硅胶和复合吸附剂吸附水蒸汽性能等。实验证明，硅胶作为复合吸附剂的基质，不同类型的硅胶对复合的吸附剂影响很大。纯硅胶中，粗孔粒度为0.5～1.5mm的硅胶吸附性能最好，但总体来说吸附量较小；复合吸附剂中，微球粗孔硅胶以及片状大孔硅胶虽然吸附量得到了大大的提高，但不容易液解这两种复合吸附剂表面的氯化盐，将会导致复合吸附剂像化学吸附剂一样膨胀结块影响传质通道，并且腐蚀吸附床。而小于2mm的粗孔硅胶复合了氯化盐后，吸水产生毛细力将撑破硅胶骨架。因此，最适合复合吸附应用的硅胶基质为小颗粒耐水硅胶。在复合了氯化盐后，吸水性能有了很大提高。同时，长时间循环吸附吸水不会造成硅胶粉碎。 关键词： 吸附制冷 新型复合吸附剂 动态吸附性能 The Preparation Of A Composite Adsorbent Employing Lithium Chloride In Silica Gel And Kinetics Of Water Adsorption On It L. X. Gong R. Z. Wang. C. J .Chen Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, 800 Dong chuan Road, Shanghai, 200240, China Abstract: This paper presents a new composite adsorbent impregnating Lithium Chloride in silica gel which can eliminate corrosion effects and decrease the shatter index. Several kinds of the silica gel are used to make the different composite adsorbents. The experiments includes: (1) Test the salt content of the different kinds of the composite adsorbents. View the corrosion effect of them in the constant temperature/humidity equipment. (2) Test the pore structure. (3) Measure the moisture uptake curves of them. The experiment results showed that as the host matrix of the composite adsorbent, the kind of silica gel impacts on the characteristic of the composite adsorbent. Also the adsorption capacity improves a lot after it impregnating the salt. The silica gel which is best fit to be the host matrix for the composite adsorbent has the small particle diameter (ranged from 0.5 mm to 1.5 mm). Keywords: adsorption refrigeration; composite adsorbent; moisture uptake curves; Kinetics of Water Adsorption