Manufacturing strategies for asymmetric ceramic membranes for efficient separation of oxygen from air

Mechanical properties of tape casted Lanthanum Tungstate for membrane substrate application

“…Candidate membrane materials that combine appreciable conductivity with sufficient chemical, mechanical and (hydro-) thermal stability for operation at high temperatures can be used in Proton Conducting Solid Oxide Fuel Cells (PCFCs), in catalytic membrane reactors or for H 2 separation [ 4,5,6 ]. Similar as already verified for oxygen transport membranes, high permeation rates can be achieved by thin membrane layers [ 7 ] supported by a porous substrate. This makes the mechanical stability of the substrate an important aspect [ 8,9 ].…”

Composite-alumina-carbon molecular sieve membranes prepared from novolac resin and boehmite. Part I: Preparation, characterization and gas permeation studies

“…Due to mechanical requirements, thin membranes must be supported in macroporous layers [24]. Furthermore, obtaining membranes on an inorganic tube is useful for scaling-up applications.…”

Strength and elastic modulus of lanthanum strontium cobalt ferrite membrane materials

“…Mixed ionic electronic conducting (MIEC) ceramic membranes are an interesting option for oxygen supply in industrial processes and to implement carbon capture concepts in fossil power plants [1,2]. Especially in the OXYFUEL process, the use of membranes promises the lowest losses in power plant efficiency compared to the conventional methods.…”

“…With the aid of dilution of the permeated oxygen by recirculated flue gas at the membrane further savings in energy consumption can be made, compared to high pressure or vacuum operation modes [3,4]. Currently perovskite materials reach the highest permeation rates, where advanced concepts use thin membrane layers that are supported by porous substrates [2,5]. In order to reduce expansion mismatch induced stresses, membrane layer and substrate are often composed of identical materials.…”