CAJ | 학술논문

对日本Takeda（CMS-1）、Kuraray（CMS-2）和德国BF（CMS-3）3种炭分子筛（CMS）的孔结构和表面官能团进行了表征，分析了它们对CH4／N2和CO2／N2的吸附平衡和吸附动力学分离性能，以及CMS的结构与表面性质对吸附性能的影响。结果表明，CMS-1和CMS-2可实现CH4／N2的动力学分离，还可实现N2／CO2的平衡分离；CMS-3平衡分离CH4／N2和CO2／N2的效果要优于动力学分离。孔结构是影响炭分子筛分离性能的直接因素，孔径分布的差异使CMS-1和CMS2对CH4／N2的位阻-动力学分离效应表现得更为明显；表面含氧官能团有利于提高炭分子筛的吸附分离性能。
대일본Takeda（CMS-1）、Kuraray（CMS-2）화덕국BF（CMS-3）3충탄분자사（CMS）적공결구화표면관능단진행료표정，분석료타문대CH4／N2화CO2／N2적흡부평형화흡부동역학분리성능，이급CMS적결구여표면성질대흡부성능적영향。결과표명，CMS-1화CMS-2가실현CH4／N2적동역학분리，환가실현N2／CO2적평형분리；CMS-3평형분리CH4／N2화CO2／N2적효과요우우동역학분리。공결구시영향탄분자사분리성능적직접인소，공경분포적차이사CMS-1화CMS2대CH4／N2적위조-동역학분리효응표현득경위명현；표면함양관능단유리우제고탄분자사적흡부분리성능。
In this paper, with the Takeda(CMS-1) and Kuraray(CMS 2) carbon molecular sieve (CMS) from Ja pan together with the BF CMS(CMS-3) from Germany as adsorbents, we measured the adsorption isotherms by use of hi-precision intelligent gravimetrie analyzer, studied the CMS's adsorption equilibrium separating proper- ty and adsorption kinetics on N2, CH4 and CO2, characterized the pore size distribution and surface functional group of CMS. The effects of structure and surface property on adsorptive separation of CMS for CH4/N2 and CO2/N2 were researched. The experimental results showed that the dynamics separation for CH4/N2 and the e- quilibrium separation for CO2/N2 were realizable on CMS-1 and CMS-2. The effect of equilibrium separation for CH4/N2 and CO2/N2 was better than dynamics separation. The pore size was the key factor which affecting CMS's adsorptive separation performance. The difference of pore diameter distribution causesd even more ob- vious steric hindrance-dynamics separation effect for CH4/N2 on CMS-1 and CMS-2, as well as the equilibrium separation effect on CMS-3. The oxygen functional group was in favor of improving the adsorptive separation property of CMS.