Simultaneous overcome of the equilibrium limitations in BSCF oxygen-permeable membrane reactors
Water splitting and methane coupling
- authored by
- Zhengwen Cao, Heqing Jiang, Huixia Luo, Stefan Baumann, Wilhelm A. Meulenberg, Hartwig Voss, Jürgen Caro
- Abstract
The equilibrium limitations of water splitting and the coupling of methane to C2 hydrocarbons (ethane + ethylene) were simultaneously overcome by using a perovskite Ba0.5Sr0.5Co0.8Fe 0.2O3-δ (BSCF) oxygen-permeable membrane reactor. Oxygen produced from thermal water splitting was transported through the BSCF membrane and consumed in the coupling of methane. The BSCF membrane consists of an about 70 μm thick dense BSCF layer on an about 0.8 mm thick porous BSCF layer as support. By applying the membrane reactor concept instead of a fixed bed reactor without oxygen supply, the methane conversion and C2 yield increased from 3.7% to 26% and 3.1% to 6.5% at 950 °C, respectively. In both experiments, the supported 2 wt.% Mn-5 wt.% Na2WO4 catalyst was used at 950 °C. Simultaneously, about 9% of the H2O injected was converted to hydrogen with a production rate of about 3.3 cm 3 min-1 cm-2 at 950 °C which is higher than 1 m3 (STP) H2 m-2 h-1.
- Organisation(s)
-
Institute of Physical Chemistry and Electrochemistry
- External Organisation(s)
-
Max-Planck-Institut für Kohlenforschung
Forschungszentrum Jülich
BASF SE
- Type
- Article
- Journal
- Catalysis today
- Volume
- 193
- Pages
- 2-7
- No. of pages
- 6
- ISSN
- 0920-5861
- Publication date
- 15.10.2012
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Catalysis, General Chemistry
- Sustainable Development Goals
- SDG 7 - Affordable and Clean Energy
- Electronic version(s)
-
https://doi.org/10.1016/j.cattod.2011.12.018 (Access:
Closed)
