| 基于钙循环的Mn-Mg修饰石灰石流态化储热及磨损特性研究 |
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| 引用本文： | 马张珂,李英杰,边志国,张宇,王涛,雷文涛.基于钙循环的Mn-Mg修饰石灰石流态化储热及磨损特性研究[J].石油学报(石油加工),2020,36(6):1370-1378. |
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| 作者姓名： | 马张珂 李英杰 边志国 张宇 王涛 雷文涛 |
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| 作者单位： | 1. 山东大学 能源与动力工程学院，山东 济南 250061；
2. 大唐七台河发电有限责任公司，黑龙江 七台河 154600；
3. 山东纳鑫电力科技有限公司, 山东 济南 250101 |
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| 基金项目： | 国家自然科学基金项目（51876105）和山东省重点研发计划重大科技创新工程项目（2019JZZY020118）资助 |
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| 摘 要： | 以石灰石、Mn(CH3COO)2?4H2O和Mg(CH3COO)2?4H2O为原料，采用浸渍法制备了Mn-Mg修饰石灰石，研究了其在流态化下的钙循环储热性能和颗粒磨损特性。结果表明：Mn的掺入提高了CaO的储热反应速率，有助于减缓石灰石储热转化率随循环次数增加而衰减，最佳Mn/Ca摩尔比为5∶100；Mn和Mg的共同掺入使Mn-Mg修饰石灰石具有更稳定的循环储热性能，最佳Mn/Mg/Ca摩尔比为5∶8∶100；最佳条件下，Mn-Mg修饰石灰石第20次循环储热转化率分别比天然石灰石和Mn修饰石灰石提高54%和30%，其20次储热循环磨损率比Mn修饰石灰石仅增加5%。
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| 关 键 词： | Mn-Mg修饰石灰石 热化学储热 流态化 太阳能 钙循环 |
| 收稿时间： | 2020-06-28 |
Heat Storage and Attrition Performance of Mn-Mg Modified Limestone Based on Calcium Looping Under Fluidization |
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| MA Zhangke,LI Yingjie,BIAN Zhiguo,ZHANG Yu,WANG Tao,LEI Wentao.Heat Storage and Attrition Performance of Mn-Mg Modified Limestone Based on Calcium Looping Under Fluidization[J].Acta Petrolei Sinica (Petroleum Processing Section),2020,36(6):1370-1378. |
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| Authors: | MA Zhangke LI Yingjie BIAN Zhiguo ZHANG Yu WANG Tao LEI Wentao |
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| Affiliation: | 1. School of Energy and Power Engineering, Shandong University, Jinan 250061, China;
2. Datang Qitaihe Power Generation Co. Ltd., Qitaihe 154600, China;
3. Shandong Naxin Electric Power Technology Co. Ltd., Jinan 250101, China |
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| Abstract: | Using limestone, Mn(CH3COO)2?4H2O and Mg(CH3COO)2?4H2O as raw materials, the Mn-Mg modified limestone for calcium looping thermochemical heat storage was prepared by the impregnation method. The cyclic heat storage and attrition performances of Mn-Mg modified limestone under fluidization were investigated. The results show that doping Mn slows down the decay of heat storage conversion with the number of cycles and increases heat storage rate of limestone. The optimal Mn/Ca molar ratio is 5∶100. Moreover, the addition of Mn and Mg improves cyclic heat storage stability of Mn-Mg modified limestone and the optimal Mn/Mg/Ca molar ratio is 5∶8∶100. Under the optimal Mn/Mg/Ca molar ratio, Xef,20 of Mn-Mg modified limestone is 54% and 30% higher than that of natural limestone and Mn modified limestone, respectively, and the attrition rate of Mn-Mg modified limestone only increases by 5% after 20 cycles, compared to Mn modified limestone. |
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| Keywords: | Mn-Mg modified limestone thermochemical heat storage fluidization solar energy calcium looping |
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