Rapid glycine-nitrate combustion synthesis of the CO2-stable dual phase membrane 40Mn1.5Co1.5O4−δ–60Ce0.9Pr0.1O2−δ for CO2 capture via an oxy-fuel process

Oxy-fuel combustion technology: current status, applications, and trends

“…The process neither requires any further treatment nor produces any form of wastes that could be produced via other CO 2 capturing techniques. Luo et al applied a glycine–nitrate‐based fast single‐spot combustion synthesizing procedure to manufacture a new oxygen‐transporting dual‐phase CO 2 ‐stable membrane of the composition 40 wt% Mn 1.5 Co 1.5 O 4−δ with 60 wt% Ce 0.9 Pr 0.1 O 2−δ (40MCO–60CPO). Characterization of the membrane indicated a stable oxygen permeation flux for more than 60 h while pure CO 2 was the sweeping gas.…”

Status of CO<sub>2</sub>-stable dual-phase mixed conductor oxygen permeable membrane materials

“…燃烧法合成出来的双相混合导体透氧膜材 料粉体晶粒一般为纳米级, 两相分散均匀. 但是此方 法属于微型爆炸法, 需要设备比较苛刻, 不适用大量 粉体的制备 [40] . [36] Figure 3 Grain structure of the surface of the 60CGO-40NFO composite membrane prepared by different methods.…”

“…(a), (b) SEM; (c), (d) BSEM [36] 图 4 燃烧法合成 40MCO-60CPO粉体((a), (b)); 烧结后的 40MCO-60CPO双相混合导体透氧膜的表面形貌图((c)~(f)). (a)~(d) SEM; ((e), (f)) BSEM [40] Figure 4 SEM ((a)-(d)) images and BSEM ((e), (f)) analysis of the precursor ash after burning the precursor ((a), (b)) and the 40MCO-60CPO powder ((c)-(f)) [40] 2. Figure 5 (Color online) Images of disk membrane (a) and tubular membrane (b); SEM of hollow fiber membrane (c) and asymmetric membrane (d) [41][42][43][44] [17] .…”

Membrane-integrated oxy-fuel combustion of coal: Process design and simulation

“…For example, the oxygen flux of SCF membranes decreases to almost zero after exposing the permeate side to a pure CO 2 sweep gas stream for 70 h at 950 1C [23]. Alternatively, there are some membranes which are very stable in CO 2 atmosphere, such as dual phase membranes and K 2 NiF 4 -type membranes [29,30,41,42]. The oxygen fluxes of these membranes, however, are much lower, as compared with BSCF and SCF.…”

“…A lot of research is performed to explore suitable membrane materials for air separation for this application [27][28][29][30][31][32][33]. However, little work has been done on the overall evaluation of a membrane-integrated oxy-fuel combustion process [34,35], such as membrane area and energy balance estimations or to show whether the currently developed membranes are sufficient for, or far from, industrial application.…”