کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7021059 1456006 2015 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of chromium in metallic components on oxygen permeability and microstructure of BaCo0.7Fe0.2Nb0.1O3−δ membrane
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Influence of chromium in metallic components on oxygen permeability and microstructure of BaCo0.7Fe0.2Nb0.1O3−δ membrane
چکیده انگلیسی
The influence of chromium in metal components on oxygen permeation and microstructure of BaCo0.7Fe0.2Nb0.1O3−δ(BCFNO) membrane was investigated under the condition of the oxygen-permeable membrane reactors. In the presence of chromia-forming metal components, the oxygen permeation flux decreased by about 2.4% and 10% when using dry air and humidified air (4% H2O) for 100 h at 850 °C, respectively. In the presence of chromia-forming alloys on the permeate side, the oxygen permeation flux decreased by 7% within 100 h. Due to the deposition of volatile Cr species from chromia-forming alloys and formation of spinel phases of BaCrO4 and BaCr2O4 on the membrane surfaces, the performance of the membrane reactors deteriorated continuously as a function of time. Poisoning of chromium species is also a critical issue for the application of MIEC oxygen-permeable membrane reactors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 493, 1 November 2015, Pages 382-388
نویسندگان
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