摘要
研究测定了温度为77 K,压力0.1 MPa,流量分别为5、8、10 L·min-1时活性炭对O2、N2的饱和吸附量,考察了O2与N2双组分杂质在氢气中共存对活性炭吸附行为的影响,并采用Fick扩散模型分别对O2和N2在活性炭内的扩散行为进行了分析,求出了实验条件下O2与N2在活性炭内的扩散系数,确定了二者在活性炭内的扩散均属于晶体扩散。
The adsorption capacity of O2 and N2 impurities in hydrogen on activated carbons were studied at temperature of 77 K, pressure of 0.1 MPa and flow of 5, 8 or 10 L.min-l. The effect of amount of 02 and N2 in the feed gas on adsorption capacity was investigated. The Fick diffusion model was used to describe the diffusion behaviors of O2 and N2 in activated carbons, and diffusion coefficients of 02 and N2 under the experimental conditions in activated carbon were obtained, and they both belong to intra-crystalline diffusion.
出处
《当代化工》
CAS
2015年第3期470-472,共3页
Contemporary Chemical Industry
关键词
氧气
氮气
吸附
扩散模型
Oxygen
Nitrogen
Adsorption
Diffusion model
