Fabrication and oxygen permeability of gastight, macrovoid-free Ba0.5Sr0.5Co0.8Fe0.2O3−δ capillaries for high temperature gas separation
作者： C. Buysse , A. Kovalevsky , F. Snijkers , A. Buekenhoudt , S. Mullens
DOI: 10.1016/J.MEMSCI.2009.10.030
关键词:
摘要: Abstract Oxygen-permeable perovskites with mixed ionic-electronic conducting properties can play an important role in the separation of oxygen from air which is needed oxy-fuel and pre-combustion technologies for removal capture CO 2 . In this work, gastight, macrovoid-free Ba 0.5 Sr Co 0.8 Fe 0.2 O 3− δ (BSCF) capillaries were successfully shaped by a phase-inversion spinning technique, followed calcination sintering. It was found that both rheology ceramic suspension composition bore liquid coagulation bath are key factors making green capillaries. Gastight BSCF obtained sintering 5 h at 1100 °C. The sintered contained significant amount BaSO 4 due to reaction polysulfone binder during calcination. permeation flux through measured compared literature data on disk hollow fiber membranes similar conditions.
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