کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5145807 | 1497377 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and characteristics of BaSrCoFe-based perovskite as a functional material for chemical looping gasification of coal
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis and characteristics of BaSrCoFe-based perovskite as a functional material for chemical looping gasification of coal Synthesis and characteristics of BaSrCoFe-based perovskite as a functional material for chemical looping gasification of coal](/preview/png/5145807.png)
چکیده انگلیسی
Perovskite-type oxides have attracted considerable attention as advanced materials with redox stability. In this study, four different types of perovskite oxides were used in chemical looping gasification (CLG) to enhance carbon conversion and gas production. The performances of perovskites for CLG were investigated in a fixed-bed reactor. The perovskite oxides were characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), and scanning electron microscopy (SEM). Results demonstrated that all of the perovskites could improve both the yield and the quality of gas production. Particularly, Ba0.5Sr0.5Co0.8Fe0.2O3-δ perovskite (BSCF) exhibited the best performance. Moreover, the gas production in the CLG process was improved by increasing the reaction temperature and using steam/hydrogen mixed atmosphere. The optimal gasification temperature and steam/hydrogen ratio for BSCF were approximately 850 °C and 0.641, respectively. The performance of BSCF stabilized after six cyclic experiments. Moreover, XRD, XRF, and SEM results showed that BSCF is capable of structural recovery and exhibits stable elemental composition in mixed atmosphere. BSCF has good cyclic performance and is a promising oxygen-carrier material for gasification.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 48, 28 December 2016, Pages 22846-22855
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 48, 28 December 2016, Pages 22846-22855
نویسندگان
Haoran Ding, Yongqing Xu, Cong Luo, Ying Zheng, Qiuwan Shen, Zhaohui Liu, Liqi Zhang,