适用于氢气和甲烷氢同位素测试的干燥剂性能研究  

Study on Properties of Desiccant Suitable for Hydrogen Isotope Measurement of Hydrogen and Methane

作　　者：岳晨午 张静雅 唐寒冰[1] 吴吉喆 刘龙波[1] 凡金龙[1] YUE Chenwu;ZHANG Jingya;TANG Hanbing;WU Jizhe;LIU Longbo;FAN Jinlong(Northwest Institute of Nuclear Technology,Xi′an 710024,China)

机构地区：[1]西北核技术研究所,陕西西安710024

出　　处：《低温与特气》2023年第6期1-6,16,共7页Low Temperature and Specialty Gases

摘　　要：气体中的水蒸气会影响氢同位素比值的测试结果。为满足氢气和甲烷氢同位素测试的需要,筛选出合适的高效干燥剂,采用静态容量法和真空静态重量法分别测试了几种常用干燥剂对氢气、甲烷和低分压水蒸气的吸附性能。结果表明,CaCl_(2)具有较高的低分压水蒸气吸附量和较低的氢气、甲烷吸附量,水蒸气吸附速率较快,适用于氢气和甲烷氢同位素测试的除湿处理。The water vapor in gas may impact the measurement results of hydrogen isotope ratio.In order to get a high⁃per⁃formance desiccant suitable for pretreatment of hydrogen and methane for hydrogen isotope measurement,the adsorption performances of several commercial desiccants for hydrogen,methane and low⁃pressure water vapor were measured by static volumetric method and vacuum static gravimetric method respectively.The results show that CaCl_(2),with the highest adsorp⁃tion capacity for low⁃pressure water vapor,lower adsorption capacity for hydrogen and methane,and fast adsorption rate for water vapor,is suitable for efficiently dehumidifying of hydrogen and methane for hydrogen isotope measurement.

关 键 词：干燥剂 水蒸气 氢气 甲烷 同位素 

分 类 号：TQ028.2[化学工程]