Dense composite electrolyte hollow fibre membranes for high temperature CO2 separation

作者：Zhuang, Shujuan; Li, Ying^*; Zuo, Meng; Tan, Xiaoyao; Meng, Bo; Yang, Naitao; Liu, Shaomin

来源：Separation and Purification Technology, 2014, 132: 712-718.

DOI：10.1016/j.seppur.2014.06.025

• Hollow fibre
• Inorganic membrane
• La0.6Sr0.4Co0.2Fe0.8O3-alpha
• CO2 separation

Inorganic membranes for high temperature CO2 separation has potential applications in clean energy delivery for CO2 capture. In this work, the gas tight oxygen ion conducting perovskite and carbonate composite electrolyte hollow fibre membranes were developed for CO2 separation at high temperatures. For this purpose, the La0.6Sr0.4Co0.2Fe0.8O3-alpha (LSCF) perovskite hollow fibre was firstly prepared as the porous support to impregnate and immobilize the carbonate phase. The composite electrolyte hollow fibre membranes were characterised by SEM, XRD, room-temperature gas leakage detection and CO2 permeation test at temperature regime from 500 to 900 degrees C. The maximum CO2 flux measured reached 1.0 mL cm(-2) min(-1) at 900 degrees C, which was improved by a factor up to 5 when compared with the previously developed membranes due to the much thinner separating layer achieved in the current membrane.

• 出版日期2014-8-20
• 单位天津工业大学; 上海大学; 山东理工大学