Details
| Original language | English |
|---|---|
| Pages (from-to) | 2-7 |
| Number of pages | 6 |
| Journal | Catalysis today |
| Volume | 193 |
| Issue number | 1 |
| Early online date | 13 Jan 2012 |
| Publication status | Published - 15 Oct 2012 |
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.
Keywords
- Equilibrium limitation, Methane coupling, Oxygen permeable membrane, Perovskite, Water splitting
ASJC Scopus subject areas
- Chemical Engineering(all)
- Catalysis
- Chemistry(all)
- General Chemistry
Sustainable Development Goals
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In: Catalysis today, Vol. 193, No. 1, 15.10.2012, p. 2-7.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Simultaneous overcome of the equilibrium limitations in BSCF oxygen-permeable membrane reactors
T2 - Water splitting and methane coupling
AU - Cao, Zhengwen
AU - Jiang, Heqing
AU - Luo, Huixia
AU - Baumann, Stefan
AU - Meulenberg, Wilhelm A.
AU - Voss, Hartwig
AU - Caro, Jürgen
PY - 2012/10/15
Y1 - 2012/10/15
N2 - 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.
AB - 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.
KW - Equilibrium limitation
KW - Methane coupling
KW - Oxygen permeable membrane
KW - Perovskite
KW - Water splitting
UR - http://www.scopus.com/inward/record.url?scp=84866256995&partnerID=8YFLogxK
U2 - 10.1016/j.cattod.2011.12.018
DO - 10.1016/j.cattod.2011.12.018
M3 - Article
AN - SCOPUS:84866256995
VL - 193
SP - 2
EP - 7
JO - Catalysis today
JF - Catalysis today
SN - 0920-5861
IS - 1
ER -