Asymmetric molecular sieve carbon membranes |
| |
| Authors: | Wang ShusenZeng Meiyun Wang Zhizhong |
| |
| Institution: | Department of Chemistry and Environment Engineering, Beijing Polytechnic University, Beijing, China, 100022 |
| |
| Abstract: | An asymmetric molecular sieve carbon membrane is obtained by conventional pyrolysis of a thermosetting polymeric film, followed by unequal oxidation. Morphology, pore size distribution, and gas separation characteristics of the membrane are discussed. The transport mechanism for gas permeation is clearly non-Knudsen diffusion since heavier oxygen permeates faster than lighter nitrogen. The proposed mass transfer mechanism is that of a molecular sieve. |
| |
| Keywords: | Carbon membrane Molecular sieve Asymmetric Pyrolysis Membrane separation |
| 本文献已被 ScienceDirect 等数据库收录！ |
