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Recently, researchers from Qingdao Institute of Bioenergy and Processes, Chinese Academy of Sciences and other units have developed a new type of titanium-based two-phase mixed conductor oxygen permeable membrane, which can be used as a membrane reactor for the hydrogen purification preparation process
.
This research solved the problem of poor stability of ceramic membrane materials in a reducing atmosphere and promoted the development of ceramic membrane hydrogen production technology
.
This new type of titanium-based dual-phase mixed conductor oxygen permeable membrane, compared with the chemically unstable iron-based dual-phase membrane, maintains the original phase structure and microscopic morphology after 100 hours of treatment in an atmosphere containing water vapor and high-concentration hydrogen.
, Showing excellent anti-reduction stability
.
The two-phase oxygen permeable membrane has good oxygen permeability under a reducing atmosphere, and can be used as a membrane reactor in a hydrogen purification preparation process
.
Driven by the low-purity hydrogen combustion reaction, CO-free hydrogen can be efficiently obtained on the water splitting reaction side of the membrane reactor
.
Experimental results show that the titanium-based dual-phase film can operate stably for a long time, and the film material exhibits good stability under actual chemical reaction conditions
.
The dense ceramic membrane with oxygen ion-electron mixed conductivity has 100% selectivity for the transmission of oxygen.
The high-temperature water splitting reaction and the industrial by-product hydrogen combustion reaction are coupled on both sides of the ceramic oxygen permeable membrane reactor, and low-purity hydrogen The combustion can promote the in-situ removal of oxygen generated by water splitting on the other side of the ceramic membrane, which can efficiently promote water splitting and directly obtain CO-free hydrogen, which can be used as a fuel directly in a hydrogen fuel cell
.
.
This research solved the problem of poor stability of ceramic membrane materials in a reducing atmosphere and promoted the development of ceramic membrane hydrogen production technology
.
This new type of titanium-based dual-phase mixed conductor oxygen permeable membrane, compared with the chemically unstable iron-based dual-phase membrane, maintains the original phase structure and microscopic morphology after 100 hours of treatment in an atmosphere containing water vapor and high-concentration hydrogen.
, Showing excellent anti-reduction stability
.
The two-phase oxygen permeable membrane has good oxygen permeability under a reducing atmosphere, and can be used as a membrane reactor in a hydrogen purification preparation process
.
Driven by the low-purity hydrogen combustion reaction, CO-free hydrogen can be efficiently obtained on the water splitting reaction side of the membrane reactor
.
Experimental results show that the titanium-based dual-phase film can operate stably for a long time, and the film material exhibits good stability under actual chemical reaction conditions
.
The dense ceramic membrane with oxygen ion-electron mixed conductivity has 100% selectivity for the transmission of oxygen.
The high-temperature water splitting reaction and the industrial by-product hydrogen combustion reaction are coupled on both sides of the ceramic oxygen permeable membrane reactor, and low-purity hydrogen The combustion can promote the in-situ removal of oxygen generated by water splitting on the other side of the ceramic membrane, which can efficiently promote water splitting and directly obtain CO-free hydrogen, which can be used as a fuel directly in a hydrogen fuel cell
.
