用于核电站放射性惰性气体处理的常温活性炭滞留床研究

STUDY ON THE CHARCOAL DELAY BED FOR RADIOACTIVE NOBLE GRASES

本文介绍了用于核电站放射性惰性气体处理的常温活性炭滞留床。试验结果表明，１１种市售国产活性炭大多数可用于常温活性炭滞留床，其中椰壳０１、０２炭，果壳１１、１２炭较好。滞留床吸附性能的主要影响因素包括：气流比速、压力、温度、活性炭含水量。设计的滞留床具有以下特点：常温操作，设备与操作过程较简单；操作压力低，比较安全；炭床体积小；活性炭更换次数少。

This paper describes the results of bench test and engineering scale test on theperformance of charcoal delay bed for radioactive noble gases. Many kinds of home-made charcoals were tested for their adsorption performances for noble gases and the correlationsbetween Kr and Xe adsorption coefficients were found.The influences on the delay bed per-formances of many parameters,such as temperature, system pressure,gas superficial velocity,relative humidity of gas stream and water content of charcoal, adsorbate concentrationand bed structure were studied.