摘要
评述了活性碳和５Ａ分子筛的吸附等温线及其在真空佩温绝热夹层真空获得中的作用。分析了真空夹层抽真空除气时用Ｎ＿２气置换以及用“多次吸附－脱附Ｎ＿２气”方法活化吸附剂等先进工艺的机理。论述了根据吸附剂吸水的吸附等温线，合理确定活化工艺条件的方法。
The sorption isothern1s ofactivated charcoal and rnolecular sieve 5A are described and their action on obtainning vacuum in jacket of cryo- genic insulation is studied.The nlechanisms of some advanced technology,such as replacing gases in vacuum jacket with gas N_2 for several times du- ring vacuum jacket evacuating as well as sobent regenerating with a me-thod “sorb and then desorb gas N_2 for several times”are analysed.A method for determining sorbent regeneration technology specifications by using sorption isotherms for water on sorbents is mentioned and studied.
出处
《低温工程》
CAS
CSCD
1994年第1期11-16,共6页
Cryogenics
关键词
活性碳
5A分子筛
吸附剂
真空低温绝热
actlvated charcoal,molecular sieve 5A,sorbent,sorption iso- therm,vacuum cryagenic insulation.
