Robust Freeze-Cast Bilayer Dual-Phase Oxygen Transport Membrane Targeting Chemical Reactor Application

2018 ◽  
Vol 1 (8) ◽  
pp. 3774-3778 ◽  
Author(s):  
Tong Liu ◽  
Wen Zhao ◽  
Yao Wang
Keyword(s):  
Oxygen Transport ◽  
Chemical Reactor ◽  
Membrane Targeting ◽  
Dual Phase ◽  
Reactor Application ◽  
Oxygen Transport Membrane

scholarly journals A CO2-stable reduction-tolerant Nd-containing dual phase membrane for oxyfuel CO2 capture

2014 ◽  
Vol 2 (21) ◽  
pp. 7780-7787 ◽  
Author(s):  
Huixia Luo ◽  
Tobias Klande ◽  
Zhengwen Cao ◽  
Fangyi Liang ◽  
Haihui Wang ◽  
...  
Keyword(s):  
Partial Oxidation ◽  
Co2 Capture ◽  
Oxygen Transport ◽  
Synthesis Gas ◽  
Dual Phase ◽  
Membrane Material ◽  
Oxidation Of Methane ◽  
Oxygen Transport Membrane ◽  
Stable Reduction ◽  
Harsh Conditions

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.

scholarly journals Effects of Bi Substitution on the Cobalt-Free 60wt.%Ce0.9Pr0.1O2−δ-40wt.%Pr0.6Sr0.4Fe1−xBixO3−δ Oxygen Transport Membranes

Processes ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 1767
Author(s):  
Chao Zhang ◽  
Yanhao Huang ◽  
Lingyong Zeng ◽  
Yiyi He ◽  
Peifeng Yu ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxygen Transport ◽  
Oxygen Permeability ◽  
Sol Gel ◽  
Dual Phase ◽  
Permeation Flux ◽  
Oxygen Permeation Flux ◽  
Oxygen Transport Membrane ◽  
Co2 Tolerance ◽  
Chemical Formulas

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.

scholarly journals Phase formation and performance of solid state reactive sintered Ce0.8Gd0.2O2−δ - FeCo2O4 composites

2021 ◽  
Author(s):  
Liudmila Fischer ◽  
Kerstin Neuhaus ◽  
Christina Schmidt ◽  
Ke Ran ◽  
Patrick Behr ◽  
...  
Keyword(s):  
Solid State ◽  
Phase Formation ◽  
Oxygen Transport ◽  
Raw Materials ◽  
Low Cost ◽  
Promising Method ◽  
Dual Phase ◽  
Reactive Sintering ◽  
And Performance ◽  
Oxygen Transport Membrane

Reactive sintering of dual phase composites for the use as oxygen transport membrane is a promising method enabling lower sintering temperatures as well as low cost raw materials. Ce0.8Gd0.2O2−δ -...

A novel CO2- and SO2-tolerant dual phase composite membrane for oxygen separation

2015 ◽  
Vol 51 (33) ◽  
pp. 7140-7143 ◽  
Author(s):  
S. Cheng ◽  
M. Søgaard ◽  
L. Han ◽  
W. Zhang ◽  
M. Chen ◽  
...  
Keyword(s):  
Composite Membrane ◽  
Oxygen Transport ◽  
Dual Phase ◽  
Oxygen Separation ◽  
Oxygen Transport Membrane

Here we report a novel, cheap, non-toxic, CO2- and SO2-stable dual phase composite oxygen transport membrane (Al0.02Ga0.02Zn0.96O1.02–Gd0.1Ce0.9O1.95−δ) for oxygen separation.

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