催化燃烧法去除含氪气体中甲烷的实验研究  

Removal of methane in krypton containing gas by catalytic combustion

作　　者：陈彬[1] 武山[1] 韦冠一[1] 方随 Chen Bin;Wu Shan;Wei Guanyi;Fang Sui(Northwest Institute of Nuclear Technology, Xi’an 710024, Shaanxi, China)

机构地区：[1]西北核技术研究所,陕西西安710024

出　　处：《工业催化》2021年第9期40-46,共7页Industrial Catalysis

摘　　要：为制备满足放射性测量需求的Kr气体源,需对含Kr气体中的高浓度CH_(4)进行初步分离,本文开展了催化燃烧法分离CH_(4)和Kr的实验研究。研究结果表明,CH_(4)的催化燃烧转化率随CH_(4)浓度和催化温度的升高而增加,H2对CH_(4)催化燃烧的抑制作用随着H_(2)浓度的升高而变大,CO对CH_(4)催化燃烧的抑制作用随着CO浓度的升高而变小,模拟气中的CH_(4)在适宜的催化燃烧条件下可有效去除。A preliminary removal of high concentration CH_(4) from Kr containing gas is needed to prepare the Kr gas source that meets the requirements of radioactive measurement.An experimental study on the removal of CH_(4) by catalytic combustion method had been carried out.The results show that the catalytic combustion removal efficiency of CH_(4) increases with the increase of CH_(4)concentration and catalytic temperature.The suppression of H_(2) on CH_(4) catalytic combustion increases with the increase of H_(2) concentration.The suppression of CO on CH_(4)catalytic combustion decreases with the increase of CO concentration.CH_(4) in standard gas can be removed effectively under suitable catalytic combustion conditions.

关 键 词：分析化学 CH_(4) KR 催化燃烧法 气体分离 

分 类 号：O658.9[理学—分析化学] TQ116.44[理学—化学]