| 化学链气化过程中CuFe2O4/SiO2载氧体的反应性能及次烟煤的结构演变 |
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| 引用本文： | 安梅,潘鑫,胡修德,马晶晶,郭庆杰.化学链气化过程中CuFe2O4/SiO2载氧体的反应性能及次烟煤的结构演变[J].石油学报(石油加工),2020,36(4):777-783. |
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| 作者姓名： | 安梅 潘鑫 胡修德 马晶晶 郭庆杰 |
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| 作者单位： | 宁夏大学 省部共建煤炭高效利用与绿色化工国家重点实验室,宁夏 银川 750021 |
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| 基金项目： | 国家重点研发计划项目（2018YFB0605401）, 宁夏自然科学基金资助项目（2020AAC03020）,宁夏回族自治区重点研发计划（重大科技）项目（2018BCE01002）,国家自然科学基金地区项目(21868025) |
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| 摘 要： | 以CuFe2O4/SiO2为载氧体，次烟煤为燃料，在间歇流化床中进行次烟煤的化学链气化实验，通过X射线衍射和拉曼光谱分析了化学链气化过程中CuFe2O4/SiO2载氧体和次烟煤的结构演变规律。结果表明：与以SiO2为床料的次烟煤气化相比，CuFe2O4/SiO2载氧体的加入使得次烟煤化学链气化的最大碳转化速率提高了43%。这是因为在化学链气化过程中，CuFe2O4/SiO2载氧体会释放分子氧和传递晶格氧，而分子氧会促进次烟煤中大芳香环的裂解，晶格氧会加快次烟煤中小芳香环的消耗。
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| 关 键 词： | 化学链 气化 合成气 CuFe2O4/SiO2载氧体 |
| 收稿时间： | 2019-05-17 |
Reaction Characteristics and Structural Evolution of Coal With Oxygen CarriersCuFe2O4/SiO2 in Chemical-Looping Gasification Process |
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| AN Mei,PAN Xin,HU Xiude,MA Jingjing,GUO Qingjie.Reaction Characteristics and Structural Evolution of Coal With Oxygen CarriersCuFe2O4/SiO2 in Chemical-Looping Gasification Process[J].Acta Petrolei Sinica (Petroleum Processing Section),2020,36(4):777-783. |
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| Authors: | AN Mei PAN Xin HU Xiude MA Jingjing GUO Qingjie |
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| Affiliation: | State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China |
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| Abstract: | Reaction characteristics in chemical-looping gasification of sub-bituminous were studied with using CuFe2O4/SiO2 as oxygen carriers and a batch fluidized bed. Structural evolution of oxygen carriers CuFe2O4/SiO2 and sub-bituminous coal during chemical looping gasification were analyzed by X-ray diffraction and Raman spectrum. Experimental results indicate that, compared with SiO2, maximum carbon transformation rate of sub-bituminous increases 43% after adding CuFe2O4/SiO2 oxygen carriers because oxygen carriers CuFe2O4/SiO2 can release O.2 molecules and transfer lattice oxygen in chemical-looping gasification process. The released O.2 can promote cracking of large aromatic rings, and the lattice oxygen can consume small aromatic rings. |
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| Keywords: | chemical-looping gasification syngas CuFe2O4/SiO2 oxygen carrier |
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