Bi1.5Y0.3Sm0.2O3-δ-based ceramic hollow fibre membranes for oxygenseparation and chemicalreactions

Nur Hidayati Othman, Zhentao Wu, Kang Li*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

In this study, Bi1.5Y0.3Sm0.2O3-δ (BYS), an oxide of great ionic conductivity, has been used to develop BYS-La0.8Sr0.2MnO3-δ (LSM) dual-phase ceramic hollow fibre membranes in an objective of promoting oxygen permeation that has been considered as the controlling step of our recent dual-layer ceramic hollow fibre membrane reactor (DL-CHFMR) for methane conversion, and subsequently lowering the temperature needed for both oxygen separation and catalytic reaction. Oxygen permeation of approximately 1.21mlmin-1cm-2 (900°C, Ar as sweep gas) was achieved by a single-layer BYS-LSM hollow fibre membrane, which is substantially higher than the previous counterpart of (ZrO2)0.90(Sc2O3)0.10(ScSZ)-LSM, proving the advantage of using BYS in promoting oxygen permeation. Although the stability of BYS in strong reducing atmosphere hampers the use of BYS-LSM/BYS-Ni DL-CHFMR for partial oxidation of methane (POM), its great ionic conductivity and catalytic activity to oxidative coupling of methane (OCM) would lead to the further development of more efficient DL-CHFMR design that can be operated at possibly lower temperatures and under less reducing atmospheres.

Original languageEnglish
Pages (from-to)58-65
Number of pages8
JournalJournal of Membrane Science
Volume432
DOIs
Publication statusPublished - 1 Apr 2013

Keywords

  • BYS
  • Catalytic reactions
  • Ceramic hollow fibre membrane
  • Dual-layer
  • Membrane reactor
  • Oxygen permeation

Fingerprint Dive into the research topics of 'Bi<sub>1.5</sub>Y<sub>0.3</sub>Sm<sub>0.2</sub>O<sub>3-δ</sub>-based ceramic hollow fibre membranes for oxygenseparation and chemicalreactions'. Together they form a unique fingerprint.

  • Cite this