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·1538 工程科学学报,第38卷,第11期 进行动力学分析,确定了燃烧前期和后期的控速模型 Jing X L,Wang Z Q,Zhang Q,et al.Combustion property and 分别为缩核反应模型和缩核内扩散模型,并分别推导 kinetics of fine chars derived from fluidized bed gasifier.Fuel Chem Technol,2014,42(1):13 出两个模型的积分式.计算出混合燃料的活化能和指 (景旭亮,王志青,张乾,等。流化床气化炉半焦细粉的燃烧 前因子,给出反应速率常数k和有效扩散系数Da与 特性及其动力学研究.燃料化学学报.2014,42(1):13) 温度T的关系式.结果表明:半焦含量增加使得混合 [10]Sun H,Zhang J L,Wang G W,et al.Combustion properties 燃料燃烧前、后阶段的活化能都增加,且k和D都降 and reaction kinetics of coal char based on non-isothermal ther- 低,进一步说明添加半焦会使煤粉的燃烧性能降低. mogravimetry.Chin J Process Eng,2014,14(1):114 (3)通过对比在煤粉中添加不同质量分数半焦 (孙辉,张建良,王广伟,等。非等温热重法的煤焦燃烧特 (15%、30%、45%和60%)的混合燃料的燃烧特性参 性及反应动力学.过程工程学报,2014,14(1):114) 01] 数和动力学参数,得出如下结论:当添加半焦的质量分 Seo D K,Park SS,Hwang J,et al.Study of the pyrolysis of bi- omass using thermogravimetric analysis (TGA)and concentra- 数大于15%后混合燃料的燃烧性能会发生较大改变, tion measurements of the evolved species.J Anal Appl Pyrol, 建议控制半焦质量分数在15%以内. 2010,89(1):66 [12]Goldfarb J L,D'Amico A,Culin C,et al.Oxidation kinetics of 参考文献 oil shale semi-cokes:reactivity as a function of pyrolysis tempera- Nomura S,Callcott T G.Maximum rates of pulverized coal injec- ture and shale origin.Energy Fuels,2013,27(2):666 tion in ironmaking blast furnaces./S//Int,2011,51(7)1033 03) Vyazovkin S,Burnham A K,Criado J M,et al.ICTAC kinetics 2]Haykiri-Acma H,Yaman S,Kugukbayrak S,et al.Investigation committee recommendations for performing kinetic computations of the combustion characteristics of Zonguldak bituminous coal on thermal analysis data.Thermochim Acta,2011,520 (1-2):1 using DTA and DTG.Energy Sources Part A.2006,28(2):135 04] Pan W.Wu K,Zhao X,et al.Reduction kinetics of Shougang i- B]Yang S P,Cai W M,Zheng H A,et al.Performance analysis of ron ore sinter.J Univ Sci Technol Beijing,2013,35(1):35 semi-coke for blast furnace injection.Chin J Process Eng,2014, (潘文,吴铿,赵霞,等.首钢烧结矿还原动力学研究.北京 14(5):896 科技大学学报,2013,35(1):35) (杨双平,蔡文淼,郑化安,等.高炉喷吹半焦及其性能分析 05] Zhang H B,Wu K,Zhou X,et al.Research of coal properties 过程工程学报,2014,14(5):896) and blending.China Metall,2008,18(8):1 4]Liu JZ,Liu MQ,Zhao W D,et al.Thermogravimetric study on (张海滨,吴铿,周翔,等。煤粉特性及配煤的研究.中国治 combustion characteristics of lignite semi-coke.Therm Power 金,2008,18(8):1) Gener,2013,42(11):86 [16]Li X G,Lii Y,Ma B G,et al.Thermogravimetric investigation (刘建忠,刘明强,赵卫东,等.褐煤半焦燃烧特性的热重试 on co-combustion characteristics of tobacco residue and high-ash 验研究.热力发电,2013,42(11):86) anthracite coal.Bioresour Technol,2011,102(20):9783 5]Qian W,Xie Q,Huang YY,et al.Combustion characteristics of [17]Guo H J.Physical Chemistry of Metallurgy.2nd Ed.Beijing: semi-cokes derived from pyrolysis of low rank bituminous coal.Int Metallurgical Industry Press,2006 J Min Sci Technol,2012,22 (5):645 (郭汉杰.治金物理化学教程.2板.北京:治金工业出版 [6]Sennoune M,Salvador S,Quintard M.Toward the control of the 社,2006) smoldering front in the reactionrailing mode in oil shale semi- [18]Hu R Z,Shi Q Z,Gao S L,et al.Thermal Analysis Kinetics coke porous media.Energy Fuels,2012,26(6):3357 2nd Ed.Beijing:Science Press,2008 Fei H,Hu S,Xiang J,et al.Kinetics of coal char combustion (胡荣祖,史启祯,高胜利,等.热分析动力学.2版.北京: with random pore model under 02/C02 atmosphere.C/ESC J, 科学出版社,2008) 2011,62(1):199 19] Zhang B S,Liu J Z,Zhou J H,et al.A new method based on (费华,胡松,向军,等.随机孔模型研究煤焦02/C02燃烧 multi-heating rate methods for coal combustion parameters.Proc 动力学特征.化工学报,2011,62(1):199) CSEE,2009,29(32):45 8]Sadhukhan A K,Gupta P,Saha R K.Analysis of the dynamics of (张保生,刘建忠,周俊虎,等。一种基于多重扫描速率法求 coal char combustion with ignition and extinction phenomena: 解煤燃烧反应参数的新方法.中国电机工程学报,2009,29 shrinking core model.Int J Chem Kinet,2008,40 (9)569 (32):45)工程科学学报,第 38 卷,第 11 期 进行动力学分析,确定了燃烧前期和后期的控速模型 分别为缩核反应模型和缩核内扩散模型,并分别推导 出两个模型的积分式. 计算出混合燃料的活化能和指 前因子,给出反应速率常数 krea和有效扩散系数 Deff与 温度 T 的关系式. 结果表明: 半焦含量增加使得混合 燃料燃烧前、后阶段的活化能都增加,且 krea和 Deff都降 低,进一步说明添加半焦会使煤粉的燃烧性能降低. ( 3) 通过对比在煤粉中添加不同质量分数半焦 ( 15% 、30% 、45% 和 60% ) 的混合燃料的燃烧特性参 数和动力学参数,得出如下结论: 当添加半焦的质量分 数大于 15% 后混合燃料的燃烧性能会发生较大改变, 建议控制半焦质量分数在 15% 以内. 参 考 文 献 [1] Nomura S,Callcott T G. Maximum rates of pulverized coal injec￾tion in ironmaking blast furnaces. ISIJ Int,2011,51( 7) : 1033 [2] Haykiri-Acma H,Yaman S,Kuukbayrak S,et al. Investigation of the combustion characteristics of Zonguldak bituminous coal using DTA and DTG. Energy Sources Part A,2006,28( 2) : 135 [3] Yang S P,Cai W M,Zheng H A,et al. Performance analysis of semi-coke for blast furnace injection. Chin J Process Eng,2014, 14( 5) : 896 ( 杨双平,蔡文淼,郑化安,等. 高炉喷吹半焦及其性能分析. 过程工程学报,2014,14( 5) : 896) [4] Liu J Z,Liu M Q,Zhao W D,et al. Thermogravimetric study on combustion characteristics of lignite semi-coke. Therm Power Gener,2013,42( 11) : 86 ( 刘建忠,刘明强,赵卫东,等. 褐煤半焦燃烧特性的热重试 验研究. 热力发电,2013,42( 11) : 86) [5] Qian W,Xie Q,Huang Y Y,et al. Combustion characteristics of semi-cokes derived from pyrolysis of low rank bituminous coal. Int J Min Sci Technol,2012,22( 5) : 645 [6] Sennoune M,Salvador S,Quintard M. Toward the control of the smoldering front in the reaction-trailing mode in oil shale semi￾coke porous media. Energy Fuels,2012,26( 6) : 3357 [7] Fei H,Hu S,Xiang J,et al. Kinetics of coal char combustion with random pore model under O2 /CO2 atmosphere. CIESC J, 2011,62( 1) : 199 ( 费华,胡松,向军,等. 随机孔模型研究煤焦 O2 /CO2 燃烧 动力学特征. 化工学报,2011,62( 1) : 199) [8] Sadhukhan A K,Gupta P,Saha R K. Analysis of the dynamics of coal char combustion with ignition and extinction phenomena: shrinking core model. Int J Chem Kinet,2008,40( 9) : 569 [9] Jing X L,Wang Z Q,Zhang Q,et al. Combustion property and kinetics of fine chars derived from fluidized bed gasifier. J Fuel Chem Technol,2014,42( 1) : 13 ( 景旭亮,王志青,张乾,等. 流化床气化炉半焦细粉的燃烧 特性及其动力学研究. 燃料化学学报. 2014,42( 1) : 13) [10] Sun H,Zhang J L,Wang G W,et al. Combustion properties and reaction kinetics of coal char based on non-isothermal ther￾mogravimetry. Chin J Process Eng,2014,14( 1) : 114 ( 孙辉,张建良,王广伟,等. 非等温热重法的煤焦燃烧特 性及反应动力学. 过程工程学报,2014,14( 1) : 114) [11] Seo D K,Park S S,Hwang J,et al. Study of the pyrolysis of bi￾omass using thermo-gravimetric analysis ( TGA) and concentra￾tion measurements of the evolved species. J Anal Appl Pyrol, 2010,89( 1) : 66 [12] Goldfarb J L,D'Amico A,Culin C,et al. Oxidation kinetics of oil shale semi-cokes: reactivity as a function of pyrolysis tempera￾ture and shale origin. Energy Fuels,2013,27( 2) : 666 [13] Vyazovkin S,Burnham A K,Criado J M,et al. ICTAC kinetics committee recommendations for performing kinetic computations on thermal analysis data. Thermochim Acta,2011,520( 1--2) : 1 [14] Pan W,Wu K,Zhao X,et al. Reduction kinetics of Shougang i￾ron ore sinter. J Univ Sci Technol Beijing,2013,35( 1) : 35 ( 潘文,吴铿,赵霞,等. 首钢烧结矿还原动力学研究. 北京 科技大学学报,2013,35( 1) : 35) [15] Zhang H B,Wu K,Zhou X,et al. Research of coal properties and blending. China Metall,2008,18( 8) : 1 ( 张海滨,吴铿,周翔,等. 煤粉特性及配煤的研究. 中国冶 金,2008,18( 8) : 1) [16] Li X G,Lü Y,Ma B G,et al. Thermogravimetric investigation on co-combustion characteristics of tobacco residue and high-ash anthracite coal. Bioresour Technol,2011,102( 20) : 9783 [17] Guo H J. Physical Chemistry of Metallurgy. 2nd Ed. Beijing: Metallurgical Industry Press,2006 ( 郭汉杰. 冶金物理化学教程. 2 版. 北京: 冶金工业出版 社,2006) [18] Hu R Z,Shi Q Z,Gao S L,et al. Thermal Analysis Kinetics. 2nd Ed. Beijing: Science Press,2008 ( 胡荣祖,史启祯,高胜利,等. 热分析动力学. 2 版. 北京: 科学出版社,2008) [19] Zhang B S,Liu J Z,Zhou J H,et al. A new method based on multi-heating rate methods for coal combustion parameters. Proc CSEE,2009,29( 32) : 45 ( 张保生,刘建忠,周俊虎,等. 一种基于多重扫描速率法求 解煤燃烧反应参数的新方法. 中国电机工程学报,2009,29 ( 32) : 45) ·1538·
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