de.mpg.escidoc.pubman.appbase.FacesBean
English
 
Help Guide Disclaimer Contact us Login
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Simultaneous overcome of the equilibrium limitations in BSCF oxygen-permeable membrane reactors: Water splitting and methane coupling

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons58648

Jiang,  Heqing
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

Locator
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

Zhengweng, C., Jiang, H., Huixia, L., Baumann, S., Meulenberg, W. A., Voss, H., et al. (2012). Simultaneous overcome of the equilibrium limitations in BSCF oxygen-permeable membrane reactors: Water splitting and methane coupling. Catalysis today, 193(1), 2-7. doi:10.1016/j.cattod.2011.12.018.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000E-F367-B
Abstract
The equilibrium limitations of water splitting and the coupling of methane to C-2 hydrocarbons (ethane + ethylene) were simultaneously overcome by using a perovskite Ba0.5Sr0.5Co0.8Fe0.2O3-delta (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 mu m 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 C-2 yield increased from 3.7% to 26% and 3.1% to 6.5% at 950 degrees C, respectively. In both experiments, the supported 2 wt.% Mn-5 wt.% Na2WO4 catalyst was used at 950 degrees 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 degrees C which is higher than 1 m(3) (STP) H-2 m(-2)h(-1). (c) 2011 Elsevier B.V. All rights reserved