Preparation and oxygen desorption performance modification of BaCoO3-δ perovskite-type materials via B-site cerium doping

Qiuwan Shen; Zicheng Shao; Yuhang Jiang; Shian Li; Guogang Yang; Naibao Huang; Xinxiang Pan

doi:10.36410/jcpr.2021.22.5.576

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자료유형: 학술저널

저자정보: Qiuwan Shen (Dalian Maritime University) Zicheng Shao (Dalian Maritime University) Yuhang Jiang (Dalian Maritime University) Shian Li (Dalian Maritime University) Guogang Yang (Dalian Maritime University) Naibao Huang (Dalian Maritime University) Xinxiang Pan (Dalian Maritime University)

저널정보: 한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제22권 제5호

발행연도: 2021.10

수록면: 576 - 583 (8page)

DOI: 10.36410/jcpr.2021.22.5.576

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The oxyfuel combustion process is used as a potential technique to CO2 capture and the oxygen carries play a crucial role ofthis technology. Ba-Co based perovskites are promising materials to producing O2/CO2 gas for oxyfuel combustion. In thisstudy, perovskite oxides BaCo0.8M0.2O3-δ (M = Ce, Al, Fe, Cu) were prepared via an EDTA sol-gel method. Scanning electronmicroscope (SEM) was used to study the surface morphology and structure of the fresh and the used perovskite powders. Oxygen adsorption/desorption experiments were carried out in a fixed-bed system; and the oxygen desorption property ofBaCo0.8Ce0.2O3-δ was studied in details. The oxygen production amount of 1g BaCo0.8Ce0.2O3-δ perovskite powders can reach101.07 mg after one adsorption and desorption cycle. SEM results showed that the fresh samples had a porous structure;however the particles were covered by impurities after cycles due to the sintering. Experiments results indicated that theoptimal desorption temperature is 850oC. The optimal volume flow rate of carbon dioxide and partial pressures of carbondioxide were determined to be 200 ml·min?1, 100% CO2 partial pressure, respectively. Furthermore, the results of cyclicperformance indicate that BaCo0.8Ce0.2O3-δ perovskite powder shows high cyclic stability for producing O2-enriched CO2stream.

#Oxyfuel combustion #CO2 capture #oxygen desorption #doping

참고문헌 (27)

참고문헌 신청

C. G. Zheng / 2015 / Engineering 1(1):139~149

T. Bruckner / 2016 / Energy Technol 4(1):19~30

H. N. Jang / 2016 / Fuel 170:92~99

F. Carrasco-Maldonado / 2016 / Int. J. Greenh. Gas Control 45:189~199

H. B. Wu / 2020 / Fuel 263:116799

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