Mixed-conducting multichannel hollow fiber membranes for oxygen separation and membrane reaction
Jiawei Zhu, Wanqin Jin *
State Key Laboratory of Materials-Oriented Chemical Engineering
Membrane Science & Technology Research Center,
Nanjing Tech University, Nanjing 210009, P. R. China
Due to the potential impacts on energy and environment, mixed-conducting dense membranes have attracted considerable interests in oxygen separation and membrane reaction process. Mixed- conducting hollow fiber membranes possess a thin wall and an asymmetric structure and can obtain high oxygen permeation flux. Therefore, the configuration of hollow fiber is considered as the promising one for the future industrial application. Nevertheless, the conventional single-channel mixed-conducting hollow fiber membrane may not meet the requirements of industrialization, suffering from low mechanical strength. Therefore, in our work, a novel mixed-conducting multichannel hollow fiber membrane with high oxygen permeation flux and excellent mechanical strength was firstly proposed by phase inversion and sintering technique to combine advantages of multichannel tubular membrane technology and conventional hollow fibers1,2. Due to excellent properties of the multichannel hollow fiber membrane configuration, the mixed-conducting multichannel hollow fiber membrane has been applied in oxygen separation in oxyfuel process for CO2 capture3. In addition, to accelerate the commercial application of mixed-conducting membrane reactor for catalytic reaction processes, a robust mixed-conducting multichannel hollow fiber membrane reactor was constructed and characterized in our work4. Our work demonstrated that the mixed-conducting multichannel hollow fiber membrane can be a competitive candidate for industrial application in the field of energy and environmental.
Keywords: mixed-conducting; multichannel hollow fiber; membrane configuration; oxygen separation; oxyfuel process; membrane reactor
This work was supported by the Project of Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) and the Innovative Research Team Program by the Ministry of Education of China (No. IRT13070).
1. Zhu J, Dong Z, Liu Z, Zhang K, Zhang G, Jin W. Multichannel mixed-conducting hollow fiber membranes for oxygen separation. AIChE Journal. 2014;60(6):1969-1976.
2. Zhu J, Liu Z, Guo S, Jin W. Influence of permeation modes on oxygen permeability of the multichannel mixed-conducting hollow fibre membrane. Chemical Engineering Science. 2015;122(0):614-621.
3. Zhu J, Guo S, Zhang Z, Jiang X, Liu Z, Jin W. CO2-tolerant mixed-conducting multichannel hollow fiber membrane for efficient oxygen separation. Journal of Membrane Science. 2015;485(0):79-86.
4. Zhu J, Guo S, Liu G, Liu Z, Zhang Z, Jin W. A robust mixed-conducting multichannel hollow fiber membrane reactor. AIChE Journal. 2015: DOI 10.1002/aic.14835.