摘要
在２９８Ｋ 下， 用重量法测定了Ｏ２ ， Ｎ２ ， ＣＨ４ 在３ 种碳分子筛 （ＣＭＳ） 上的扩散速率。其动力学数据表明， Ｏ２ 在ＣＭＳ上的扩散速率约是Ｎ２ 的１０ 倍， 所有Ｎ２ 的扩散速率又远较ＣＨ４ 的高； 同时用Ｆｉｃｋ 第二定律计算了扩散常数和扩散系数。
Diffusion of oxygen,nitrogen and methane on three kinds of carbon molecular sieves (CMS)was studied by gravimetric method (with Cahn 2000 electro balance) at 298K.CMS Ⅰ is made of coal,CMS Ⅱ is made of walnut shells and CMS Ⅲ is produced by Japan Takeda Co..Kinetic data showed that the diffusion rate of oxygen is about ten times as that of nitrogen on the CMSs,while the diffusion rate of nitrogen is much higher than that of methane.The diffusion constant D/R 2 and diffusion coefficient D were calculated by means of the simplified Fick′s second law.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
1999年第6期81-83,共3页
Acta Petrolei Sinica(Petroleum Processing Section)
