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 BaCo0.7Fe0.2Nb0.1O3âδ membrane
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The influence of chromium in metal components on oxygen permeation and microstructure of BaCo0.7Fe0.2Nb0.1O3âδ(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
Journal: Journal of Membrane Science - Volume 493, 1 November 2015, Pages 382-388
نویسندگان
Yuwen Zhang, Chenchen Yu, Lili Zhang, Kun Su, Chengzhang Wu, Weizhong Ding, Xionggang Lu,