无机材料学报 ›› 2015, Vol. 30 ›› Issue (12): 1233-1242.DOI: 10.15541/jim20150244 CSTR: 32189.14.10.15541/jim20150244

• •    下一篇

双相混合导体膜氧渗透性能改善的研究进展

陈 婷1, 2, 江 莞2, 3, 江伟辉1, 2, 刘健敏2, 张筱君1, 谢志翔1   

  1. (1. 景德镇陶瓷学院 材料学院, 景德镇333001; 2. 国家日用及建筑陶瓷工程中心, 景德镇333001; 3. 东华大学 材料科学与工程学院, 上海201620)
  • 收稿日期:2015-05-21 修回日期:2015-07-05 出版日期:2015-12-20 网络出版日期:2015-11-24
  • 作者简介:陈 婷(1984–),女,讲师. E-mail: chenting@jci.edu.cn
  • 基金资助:
    国家自然科学基金(51402135);江西省科技厅青年科学基金(20142BAB216006);江西省教育厅青年基金(GJJ13621);景德镇市科技局基金(701301-323)

Research Progress in Improvement of Oxygen Permeation Properties for Dual-phase Mixed Conducting Membranes

CHEN Ting1, 2, JIANG Wan2, 3, JIANG Wei-Hui1, 2, LIU Jian-Min2, ZHANG Xiao-Jun1, XIE Zhi-Xiang1   

  1. (1. School of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333001, China; 2. National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen 333001, China; 3. College of Materials Science and Engineering, Donghua Unirersity, Shanghai 201620, China)
  • Received:2015-05-21 Revised:2015-07-05 Published:2015-12-20 Online:2015-11-24
  • About author:CHEN Ting. E-mail: chenting@jci.edu.cn
  • Supported by:
    National Natural Science Foundation of China (51402135);Projects of Jiangxi Provincial Department of Science and Technology (20142BAB216006);Youth Science Foundation of Jiangxi Provincial Department of Education (GJJ13621);Project of Jindezhen Science and Technologg Bureau (701301-323)

摘要:

双相混合导体膜在高温下能够同时传导氧离子和电子, 具有稳定性好、膨胀系数低、机械强度高和成分可调等优点, 可以作为反应器应用于甲烷部分氧化制合成气(POM)。但双相混合导体膜的透氧率较低, 成为亟待解决的问题。本文从透氧机理入手详细阐述了氧渗透过程的影响因素。在此基础上综述了目前提高双相混合导体膜透氧率的措施, 包括了采用混合导体作为电子导电相、降低电子导电相形成连续渗流网络的体积比阀值和减小双相晶粒尺寸, 以及宏观上制备出不对称膜、管状膜和中空纤维膜进一步降低膜厚、增大表面积以提高透氧率。最后指出双相混合导体膜在未来需要重点解决的一些问题。

关键词: 混合导体, 氧分离, 陶瓷膜, 双相, 综述

Abstract:

Dual-phase mixed conducting membrane can transport oxygen ions and electrons simultaneously at high temperature. Due to its high stability, low thermal expansion coefficient, high mechanical strength, and tunable component, it shows great potential in application of partial oxidation of methane to syngas (POM). However, how to improve its oxygen permeation flux is a key problem needing to be solved. In this review, the controlled step of the permeation process was analyzed based on the permeation mechanization. The improvements were presented, including utilized mixed conductor as electron conducting phase, reduced electronic threshold and decreased the grain size of the two phases. Meanwhile, fabricating asymmetric membrane, tube membrane and hollow fiber membrane were also efficient ways to reduce the thickness and to increase the surface area of the membrane, resulting in much increased permeation flux. Finally, some key problems to be solved in the future were also outlined.

Key words: mixed conductor, oxygen separation, ceramic membrane, dual-phase, review

中图分类号: