摘要
目的研制载人航天专用分子筛,并进行应用效果评价。方法分子筛产品的研制采用造粒、烘干、焙烧、二次晶化、二次交换和二次焙烧技术,并通过等温吸附和4床分子筛试验进行静态动态性能评价。结果研制的TC-5A和TC-13X分子筛产品,CO2和H2O的静态吸附能力分别达到19.7%和29.15%,在4床分子筛动态试验中,吸附床再生温度280℃,干燥床达120℃,干燥床出口空气露点小于-40℃,吸附床CO2动态处理能力为2.17～6.17 kg/d。结论 TC-5A和TC-13X分子筛应用于4床分子筛CO2处理系统,能够保证系统稳定运转,CO2处理量可满足3人密闭生存空间对CO2浓度控制的需要。
Objective To develop molecular sieves for manned spacecraft and evaluate their effectiveness. Methods Shaping, drying, baking, recrystalization, re-exchange and re-baking were adopted in the development of the molecular sieves. The static and dynamic behavior were tested by isothermal adsorption and by four-bed molecular sieves system, Results The TC-SA CO2 adsorption capacity was 19.7% and TC-13X moisture capacity was 29.15%. The kinetic experiments in four-bed molecular sieve system （4BMS） showed that the dew point at the outlet of drying bed was kept below -40 ℃ and the CO2 removal capacity was 2.17 6.17 kg/d when the regeneration temperatures of adsorption bed and drying bed were 280 ℃ and 120 ℃ respectively. Conclusion TC-SA and TC-13X can be used in 4BMS to remove CO2 effectively in a space capsule with three crew members.
出处
《航天医学与医学工程》
CAS
CSCD
北大核心
2013年第3期185-189,共5页
Space Medicine & Medical Engineering
基金
国家国际科技合作专项资助项目(2011DFR51020)
中国载人航天工程基金资助项目
关键词
分子筛
CO2吸附能力
干燥
空间站
molecular sieves
CO2 adsorption capacity
drying
space station
