Simultaneous production of pure nitrogen and syngas in BaCe0.5Fe0.5O3-δ membrane reactor

Insight of BaCe0.5Fe0.5O3−δ twin perovskite oxide composite for solid oxide electrochemical cells

“…The Rietveld refinement of the 900°C‐calcined powder (Figure 2B) indicates that the final BCF powder comprises orthorhombic perovskite phase (73%), cubic perovskite phase (24%), and barium carbonate (3%). The phase composition of the BCF composite is consistent with the literature 21,24,25,31 . A small amount of barium carbonate was usually observed, while synthesizing barium containing perovskite oxides by calcining the charcoal‐like primary powder derived from the modified Pechini method at a temperature lower than or equal to 900°C.…”

“…The phase composition of the BCF composite is consistent with the literature. 21,24,25,31 A small amount of barium carbonate was usually observed, while synthesizing barium containing perovskite oxides by calcining the charcoal-like primary powder derived from the modified Pechini method at a temperature lower than or equal to 900 • C. Both the poor air exchange of the box furnace and high powder packing bed could be the reasons caused the residual barium carbonates, which can be removed by better control of the calcination process. From Figure 2, we can conclude that by calcining the charcoal-like primary powder derived from the modified Pechini method at 900 • C, we can obtain the TPOCs comprising orthorhombic and cubic perovskite phases as reported in the literature.…”

Dual-phase Ce0.8Sm0.2O2−δ–La0.8Ca0.2Al0.3Fe0.7O3−δ oxygen permeation hollow fiber membrane for oxy-CO2 reforming of methane

“…The selectivity of H 2 was slightly increased, while the CO 2 conversion was decreased slightly, indicating that CH 4 was oxidized partially by permeated oxygen. 61 In addition, as the temperature increased, the ability of oxygen in the reactor to suppress carbon accumulation was enhanced, and the selectivity of CO was enhanced, which suppressed the RWGS reaction, increased the selectivity of H 2 , and reduced the CO 2 conversion rate. It can also be inferred from the H 2 /CO ratio (Fig.…”

CFD Simulation of Syngas Combustion in a Two-Pass Oxygen Transport Membrane Reactor for Fire Tube Boiler Application

“…Since the combustion of syngas releases a large amount of heat, the syngas combustion membrane reactor can be used as a fire tube in a fire tube boiler to heat the water outside the tube, which enables the integration of oxygen separation, syngas combustion, steam generation, and CO 2 capture in a compact apparatus. Recently, immense amounts of research have been conducted on the syngas production based on membrane reactor [5][6][7][8][9], while the research on the syngas combustion in an OTMR is still insufficient. MA.…”