5A、13X与NaLSX分子筛吸脱水实验研究  

Experimental study on absorption and dehydration of 5A,13X and NaLSX molecular sieves

作　　者：王洪亮[1,3,4,5] 张勇平 胡宏杰[1,3,4,5] 刘红召[1,3,4,5] 王威 WANG Hong-liang;ZHANG Yong-ping;HU Hong-jie;LIU Hong-zhao;WANG Wei(Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,CAGS,Zhengzhou 450006,China;China Astronaut Research and Training Center,Beijing 100094,China;China National Engineering Research Center for Utilization of Industrial Minerals,Zhengzhou 450006,China;Key Laboratory forPolymetallic Ores’Evaluation and Utilization,MNR,Zhengzhou 450006,China;Key Laboratory of Comprehensive Utilization of Gold Resource in Henan Province,Zhengzhou 450006,China)

机构地区：[1]中国地质科学院郑州矿产综合利用研究所,河南郑州450006 [2]中国航天员科研训练中心,北京100094 [3]国家非金属矿资源综合利用工程技术研究中心,河南郑州450006 [4]自然资源部多金属矿综合利用评价重点实验室,河南郑州450006 [5]河南省黄金资源综合利用重点实验室,河南郑州450006

出　　处：《应用化工》2021年第4期957-960,964,共5页Applied Chemical Industry

基　　金：河南省科技攻关项目(172102210573)。

摘　　要：比较不同类型的分子筛吸水与脱水性能,筛选最优的分子筛脱水干燥剂。建立一种分子筛有效吸附水、有效脱附水与有效残留水的计算方法,比较在不同温度下的水含量分布。随脱附温度升高,分子筛有效脱附水增加,有效残留水减少,吸水率增大;真空气氛脱附后分子筛吸脱水能力优于非真空空气气氛吸脱水能力;在脱附温度为250℃时,13X与NaLSX的有效残留水为2.0%左右,5A分子筛的有效残留水基本完全脱除;当正常工作脱附温度为200~250℃时,13X分子筛脱附再生后的吸水能力最强,是最优的脱水干燥剂。To compare the water absorption and dehydration performance of different types of molecular sieves,and to select the best desiccant.To establish a calculation method of effective adsorption water,effective desorption water and effective residual water of molecular sieve,and compare the water content distribution at different temperatures.With the increase of desorption temperature,the effective desorption water of molecular sieve increased,the effective residual water decreased and the water absorption rate increased;the dehydration capacity of molecular sieve in vacuum atmosphere was better than that in non vacuum atmosphere;when the desorption temperature was 250℃,the effective residual water of 13X and NaLSX was about 2.0%,and the effective residual water of 5A molecular sieve was basically completely removed;When the normal working desorption temperature is 200~250℃,13X molecular sieve is the best desiccant with the strongest water absorption capacity after desorption and regeneration.

关 键 词：分子筛 脱水 脱附温度 水含量分布 

分 类 号：TQ028.15[化学工程]