Testing of high performance asymmetric tubular BSCF membranes under pressurized operation – A proof-of-concept study on a 7 tube module

Oxygen transport membranes are a possible low-cost alternative to cryogenic air separation units or pressure swing adsorption for oxygen production, and could facilitate carbon capture by oxy-fuel combustion processes. In this work, proof-of-concept module with 7 ceramic tubular was designed tested in high test stand. To ensure production rates, asymmetric length of 70 cm consisting porous Ba0.5Sr0.5(Co0.8Fe0.2)0.97Zr0.03O3-δ support dense thin layer were used. The successfully operated at up 5.4 bar 280 h temperature range from 650 °C 850 °C. purities 96.5% flow rates 6.2 ml/cm2/min measured, total maximum 227 NLPH demonstrated.