CAJ | 학술논문

很多核设施会产生放射性水平较高的氙等稀有气体同位素，须经过特殊处理后才能向环境排放，研究以空气或其它气体为介质的氙的吸附净化方法具有较强的实用价值。研究了常温下多组分气体在活性炭上直接吸附时，杂质组分 CO2对捕集氙效果的影响，比较了多级柱和单级柱两种方案的效果和活性炭用量，以及条件参数的影响。结果表明：相比较多级柱除杂质吸附氙的方法，单级柱直接吸附氙更易于实现工程应用；在流速约0.33 cm/s 下，活性炭单级柱常温常压吸附对氙捕集效率达到90%；在一定流速(0.02~1.2 cm/s)范围内，可以忽略炭床阻力的影响。
흔다핵설시회산생방사성수평교고적선등희유기체동위소，수경과특수처리후재능향배경배방，연구이공기혹기타기체위개질적선적흡부정화방법구유교강적실용개치。연구료상온하다조분기체재활성탄상직접흡부시，잡질조분 CO2대포집선효과적영향，비교료다급주화단급주량충방안적효과화활성탄용량，이급조건삼수적영향。결과표명：상비교다급주제잡질흡부선적방법，단급주직접흡부선경역우실현공정응용；재류속약0.33 cm/s 하，활성탄단급주상온상압흡부대선포집효솔체도90%；재일정류속(0.02~1.2 cm/s)범위내，가이홀략탄상조력적영향。
Radioactive isotopes of xenon are produced in nuclear facilities,and must be trapped before released into the atmosphere.Study on the adsorption behavior of Xe isotopes in air or other gaseous medium is of great importance.For the perspective of engineering application,direct adsorption of multi-component gas at room temperature using activated carbon was studied.The comparison between multi-stage and single-stage carbon column adsorption was carried out, and the effects of condition parameters including carbon consumption were investigated.Experimental results show that single-stage carbon column is easier to be achieved in engineering application as compared with the way of multi-stage adsorbing column.For single-stage carbon column,the adsorbing efficiency of Xe reaches 90% with a gas flow velocity of 0.33 cm/s,and the resistance from the carbon bed is negli-gible in a certain flow velocity range (0.02-1.2 cm/s).