Investigating the effect of dianhydride type and pyrolysis condition on the gas separation performance of membranes derived from blended polyimides through statistical analysis |
| |
| Affiliation: | 1. School of Space and Environment, Beihang University, 37 Xueyuan Road, Beijing, China;2. College of Arts and Science, Beijing Union University, 197 Beituchengxi Road, Beijing, China;1. Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Hubei University of Science and Technology, Xianning, 437100, China;2. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China;3. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China;4. State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing, 102249, China;5. Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin, 300387, China;1. Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310, Skudai, Johor Darul Takzim, Malaysia;2. Faculty of Chemical and Energy Engineering (FCEE), Universiti Teknologi Malaysia, 81310, Skudai, Johor Darul Takzim, Malaysia;3. Faculty of Mechanical Engineering, Universiti Malaysia Pahang, 26600, Pekan, Pahang Darul Makmur, Malaysia |
| |
| Abstract: | In this study, properly designed experiments are utilized to improve and optimize the main parameters including the selection of precursors with different molecular structures, blend composition of precursors and conditions of carbonization. Optimum conditions are met for UIP-R/PBI, at blend composition of 94% and pyrolysis temperature of 620 °C at 10?7 Torr. Under such conditions, the model estimated permeability of CH4 and CO2 equal to 26.7 and 310 Barrer, while measured selectivity responses of CO2/CH4 is 77.5, respectively. As a result, greater values of separation efficiency are achieved in the range of 0.88–0.97 polyimide content in these blends. |
| |
| Keywords: | Gas permeability and selectivity CMS membranes Modeling and optimization Factorial design Carbonization |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
