Study on leakage test of iodine adsorber using cyclohexane

Abstract

A new method for performance test of iodine adsorber, which is called cyclohexane method, is developed. Leakage simulation experiments and stability experiments using cyclohexane and freon respectively were conducted and compared to study the feasibility of using cyclohexane to replace Freon for in situ performance tests of iodine adsorber. In addition, the sorption and desorption behaviors of cyclohexane in impregnated activated carbon of iodine adsorber were investigated to study their effects on in situ mechanical leakage tests. For this reason, the effects of different carrier gas temperature, relative humidity, flow rate, and cyclohexane concentration in air were carefully investigated. Experimental results show that cyclohexane can be retained about 500 min in activated carbon bed therefore it can be used to replace freon to avoid its damage to atmosphere and temperature needs to pay attention in in situ performance tests because of its significant affection.