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毕业论文网 > 任务书 > 化学化工与生命科学类 > 化学工程与工艺 > 正文

多通道Ba0.5Sr0.5Co0.8Fe0.2O3-δ中空纤维膜的通道影响研究任务书

 2020-04-26 12:55:01  

1. 毕业设计(论文)的内容和要求

随着陶瓷膜的发展,构型上从片式膜发展到中空纤维膜,中空纤维膜由于其独特的孔结构,具有渗透性能高、装填密度高等优点被广泛研究,多通道中空纤维膜完全克服了单通道中空纤维膜机械强度弱的问题,而且也具有非常高的渗透通量,在工业上得到了广泛的应用。

目前多通道中空纤维膜已经由四通道、7通道到19通道甚至更多地通道发展,膜构型对于分离过程具有重要的影响,优化配置多通道膜构型是目前提高膜综合性能的重要工作。

因此,本课题基于前期开发的 ba0.5sr0.5co0.8fe0.2o3-δ (bscf)多通道中空纤维膜,通过对4、7、19不同通道的中空纤维膜进行透氧测试和强度测试,系统研究增加孔道对膜透氧通量、机械强度的影响,以及不同位置孔通道对于透氧量的贡献。

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2. 参考文献

[1] Yang Dew u ( 杨德武 ), Zhao Guoping ( 赵国平 ), Wang Yan hong ( 王艳红 ), Men g Lingyan ( 孟令岩 ).Numerical simulation study of seepage flow models. Journal of Filtration an d Separation ( 过滤与分离 ), 2005 , 15:24-28. [2] Tarabara V V, Wiesner M R.Computational fluid dynamics modeling of the flow in a laboratory membrane filtration cell operated at low recoveries, Chemical Engineering Science ,2003 , 58:239-246 [3] Z. Shao, W. Yang, Y. Cong, et al., Investigation of the permeation behavior and stability of a Ba0.5Sr0.5Co0.8Fe0.2O3-delta oxygen membrane, J. Membr. Sci., 172 (2000) 177-188. [4] Z. Shao, H. Dong, G. Xiong, et al. Performance of a mixed-conducting ceramic membrane reactor with high oxygen permeability for methane conversion, J. Membr. Sci., 183 (2001) 181-192. [5] P. Zeng, Z. Chen, W. Zhou, et al. Re-evaluation of Ba0.5Sr0.5Co0.8Fe0.2O3-delta perovskite as oxygen semi-permeable membrane, J. Membr. Sci., 291 (2007) 148-156. [6] J. Sunarso, S. Baumann, J. Serra, et al. Mixed ionic-electronic conducting (MIEC) ceramic-based membranes for oxygen separation, J. Membr. Sci., 320 (2008) 13-41. [7] A.S. Berman. Laminar flow in channels with porous walls, J. Appl. Phys., 24 (9) (1953), pp. 1232-1235 [8] Dolecek P , Cakl J.Perm eat e flow in hexagon al 19-channel inorganic mem brane under filtration and back flush operating modes, J.Membr ane S ci., 1998 , 149:171-179 [9] X. Shao, D. Dong, G. Parkinson, et al. A microchanneled ceramic membrane for highly efficient oxygen separation. J. Mater. Chem.A, 34 (2013) 9641-9644. [10] J. Zhu, Z. Dong, Z. Liu, et al. Multichannel mixed-conducting hollow fiber membranes for oxygen separation, AlChE J., 60 (2014) 1969-1976 . [11] J. Zhu,Z. Liu,S. Guo,et al. Influence of permeation modes on oxygen permeability of the multichannel mixed-conducting hollow fibre membrane, Chem. Eng. Sci.,122 (2015) 614#8211;621. [12] J. Zhu, S. Guo, Z. Chu, et al, CO2-tolerant oxygen-permeable perovskite-type membranes with high permeability, J. Mater. Chem. A, 3 (2015) 22564-22573. [13] J. Zhu, G. Liu, Z. Liu, et al. Unprecedented Perovskite Oxyfluoride Membranes with High-Efficiency Oxygen Ion Transport Paths for Low-Temperature Oxygen Permeation, Adv. Mater., 28 (2016) 3511-3515. [14] X. Shao, D. Dong, G. Parkinson, et al. Thin ceramic membrane with dendritic micro channeled sub structure and high oxygen permeation rate, J. Membr. Sci., 541 (2017) 653-660. [15] H. Xie, L. Zhuang, Y. Chen, et al. Phase-inversion synthesize of asymmetric-structured La5.5W0.6Mo0.4O11.25-delta membranes with enhanced hydrogen permeation flux, J. Alloys Compd., 729 (2017) 890-896. [16] Xu Nanping ( 徐南平 ), Li Weixing ( 李卫星 ), Zhao Yijiang( 赵宜江 ), Xing Weihong ( 邢卫 红 ), Shi Jun ( 时 钧 ).Theory and method of application-oriented ceramic membranes design (Ⅰ): Simulation of relation between membrane permeability and micro-structure, Journal of Chemical Industry and Engineering (China)(化工学报 ),2003 , 54 (9):1284-1289

3. 毕业设计(论文)进程安排

19.02.16~19.02.20 :学习和掌握实验操作过程,了解实验室的装置仪器,并进行实验室安全条例的学习。

19.02.20~19.03.10 :查阅各种课题背景资料,完成英文文献的阅读和翻译,同时开始准备实验计划、拟定实验方案。

19.03.10~19.05.20 :完成本课题实验工作,利用色谱技术测试不同通道的 bscf 中空纤维对透氧量的影响,通过不同堵孔方式考察不同位置孔通道对总透氧量的贡献。

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