Zr 0.92 Y 0.08 O 1.92 ‐La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3– δ Asymmetric Dual‐phase Oxygen Transport Membrane for Simultaneously Methane Partial Oxidation and Water Splitting

Fuel Cells ◽  
2020 ◽  
Author(s):  
J. Shi ◽  
X. Zhu ◽  
K. Li ◽  
Y. Wei ◽  
H. Wang
2014 ◽  
Vol 2 (21) ◽  
pp. 7780-7787 ◽  
Author(s):  
Huixia Luo ◽  
Tobias Klande ◽  
Zhengwen Cao ◽  
Fangyi Liang ◽  
Haihui Wang ◽  
...  

We report a novel CO2-stable reduction-tolerant dual-phase oxygen transport membrane 40 wt% Nd0.6Sr0.4FeO3−δ–60 wt% Ce0.9Nd0.1O2−δ. This membrane material shows good reversibility of the oxygen permeation fluxes, good stability in a CO2 atmosphere and under the harsh conditions of partial oxidation of methane to synthesis gas up to 950 °C.


2018 ◽  
Vol 6 (29) ◽  
pp. 14246-14254 ◽  
Author(s):  
Jeong Hwan Park ◽  
Young-il Kwon ◽  
Gyeong Duk Nam ◽  
Jong Hoon Joo

The utilization of CO2, coupled with partial oxidation of methane (POM) by using an oxygen transport membrane, has been investigated.


2019 ◽  
Vol 13 (26) ◽  
pp. 393-403 ◽  
Author(s):  
Chan Young Park ◽  
Tae H. Lee ◽  
Steve E. Dorris ◽  
U. (Balu) Balachandran

Processes ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 1767
Author(s):  
Chao Zhang ◽  
Yanhao Huang ◽  
Lingyong Zeng ◽  
Yiyi He ◽  
Peifeng Yu ◽  
...  

The mixed ionic-electronic conducting (MIEC) oxygen transport membrane (OTM) can completely selectively penetrate oxygen theoretically and can be widely used in gas separation and oxygen-enriched combustion industries. In this paper, dual-phase MIEC OTMs doped with Bi are successfully prepared by a sol-gel method with high-temperature sintering, whose chemical formulas are 60wt.%Ce0.9Pr0.1O2−δ-40wt.%Pr0.6Sr0.4Fe1−xBixO3−δ (60CPO-40PSF1−xBxO, x = 0.01, 0.025, 0.05, 0.10, 0.15, 0.20). The dual-phase structure, element content, surface morphology, oxygen permeability, and stability are studied by XRD, EDXS, SEM, and self-built devices, respectively. The optimal Bi-doped component is 60wt.%Ce0.9Pr0.1O2−δ-40wt.%Pr0.6Sr0.4Fe0.99Bi0.01O3−δ, which can maintain 0.71 and 0.62 mL·min−1·cm−2 over 50 h under He and CO2 atmospheres, respectively. The oxygen permeation flux through these Bi-doped OTMs under air/CO2 gradient is 12.7% less than that under air/He gradient, which indicates that the Bi-doped OTMs have comparable oxygen permeability and excellent CO2 tolerance.


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