| 基于硫酸钙固体燃料化学链气化过程制备合成气的研究(英文) |
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| 引用本文： | 刘永卓,郭庆杰. 基于硫酸钙固体燃料化学链气化过程制备合成气的研究(英文)[J]. 中国化学工程学报, 2013, 21(2): 127-134. DOI: 10.1016/S1004-9541(13)60450-4 |
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| 作者姓名： | 刘永卓 郭庆杰 |
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| 作者单位： | College of Chemical Engineering, Qingdao University of Science & Technology, Key Laboratory of Clean Chemical Processing Engineering of Shandong Province, Qingdao 266042, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China(20876079);the Natural Science Funds for DistinguishedYoung Scholar in Shandong Province(JQ200904);Shandong Province Key Technologies Research and DevelopmentProgram of China(2008GG10006010,2009GG10007001) |
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| 摘 要： | Chemical-looping gasification (CLG) is a novel process for syngas generation from solid fuels,sharing the same basic principles as chemical-looping combustion (CLC).It also uses oxygen carriers (mainly metal oxide and calcium sulfate) to transfer heat and oxygen to the fuel.In this paper,the primary investigation into the CLG process with CaSO4 as oxygen carrier was carried out by thermodynamic analysis and experiments in the tube reactor.Sulfur-contained gas emission was mainly H2S rather than SO2 in the CLG process,showing some different features from the CLC.The mass and heat balance of CLG processes were calculated thermodynamically to determinate the auto-thermal operating conditions with different CaSO4/C and steam/C molar ratios.It was found that the CaSO4/C molar ratio should be higher than 0.2 to reach auto-thermal balance.The effect of temperature on the reactions between oxygen carrier and coal was investigated based on Gibbs free energy minimum method and experimental results.It indicated that high temperature favored the CLG process in the fuel reactor and part of syngas was consumed to compensate for auto-thermal system.
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| 关 键 词： | chemical-looping gasification syngas generation CaSO4 oxygen carrier thermodynamic analysis |
| 收稿时间： | 2011-12-12 |
Investigation into Syngas Generation from Solid Fuel Using CaSO4-based Chemical Looping Gasification Process |
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| LIU Yongzhuo , GUO Qingjie. Investigation into Syngas Generation from Solid Fuel Using CaSO4-based Chemical Looping Gasification Process[J]. Chinese Journal of Chemical Engineering, 2013, 21(2): 127-134. DOI: 10.1016/S1004-9541(13)60450-4 |
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| Authors: | LIU Yongzhuo GUO Qingjie |
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| Affiliation: | College of Chemical Engineering, Qingdao University of Science & Technology, Key Laboratory of Clean Chemical Processing Engineering of Shandong Province, Qingdao 266042, China |
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| Abstract: | Chemical-looping gasification (CLG) is a novel process for syngas generation from solid fuels, sharing the same basic principles as chemical-looping combustion (CLC). It also uses oxygen carriers (mainly metal oxide and calcium sulfate) to transfer heat and oxygen to the fuel. In this paper, the primary investigation into the CLG process with CaSO4 as oxygen carrier was carried out by thermodynamic analysis and experiments in the tube reactor. Sulfur-contained gas emission was mainly H2S rather than SO2 in the CLG process, showing some different features from the CLC. The mass and heat balance of CLG processes were calculated thermodynamically to determinate the auto-thermal operating conditions with different CaSO4/C and steam/C molar ratios. It was found that the CaSO4/C molar ratio should be higher than 0.2 to reach auto-thermal balance. The effect of temperature on the reactions between oxygen carrier and coal was investigated based on Gibbs free energy minimum method and experimental results. It indicated that high temperature favored the CLG process in the fuel reactor and part of syngas was consumed to compensate for auto-thermal system. |
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| Keywords: | chemical-looping gasification syngas generation CaSO4 oxygen carrier thermodynamic analysis |
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