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.168· 北京科技大学学报 第35卷 1.0 1.0 7.87 0.8 0.8 16.26 32.32 0.6 0.6 5Q7 0.4 90.47022149.55m中 0.4 16.2650.7 32.32 70.68 0.27.87 130.63 0.2 0.0 .0 0.2 0.4 0.6 0.8 1.0 00 168570i 0.2 0.4 0.6 0.8 1.0 X (a) (b) 图982mm床层高度方向上转化率及CO浓度的分布.(a)转化率:(b)CO浓度 Fig.9 Distribution of conversion rate and CO concentration in the height direction when F is 82 mm:(a)conversion rate: (b)CO concentration 3结论 8]Szekely J,Evans J W.Studies in gas-solid reactions:Part (1)通过对床层高度42mm的模型计算转化率 I.A structural model for the reduction of porous oxides 与实验测转化率对比,以及床层高度方向上,模型 with a reducing gas.Metall Trans,1971,2(6):1691 计算球团矿转化率、C0浓度分布的分析,证明了 9]Sohn H Y,Chaubal P C.Rate enhancement of gaseous reduction of iron oxide pellets by pressure cycling.Trans 等温固定床球团矿还原模型的正确性. Iron Steel Inst Jpn,1984,24(5):387 (2)当反应床层高度增加到82mm时,模型计 [10]Bhatia S K,Perlmutter DD.A random pore mnodel for 算转化率和实测转化率偏差较大,是由于床层高度 fluid-solid reactions:I.Isothermal,kinetic control.A/ChE 增加后球团还原反应产生的热效应加剧,偏离了模 J,1980,26(3):379 型假设的等温条件 [11]Homma S,Ogata S,Koga J,et al.Gas-solid reaction model for a shrinking spherical particle with unreacted 参考文献 shrinking core.Chem Eng Sci,2005,60(18):4971 (12]Fu J Y,Li Y T,Jiang C W,et al.Oxidation kinetics [1]Ban X F.The Basic Research of Gas-Solid Reaction Ki of magnetite concentrate pellets.J Cent South Univ Sci netics of Fine-made Pellet [Dissertation].Anshan:Uni Techno4,2004,35(6):950 versity of Science and Technology Liaoning,2003 (傅菊英,李云涛,姜昌伟,等磁铁精矿球团氧化动力学 (潘喜峰.微颖粒球团气-固反应动力学基础研究学位论 中南大学学报:自然科学版,2004,35(6):950) 文].鞍山:辽宁科技大学,2003) (13]Moriyama A.Analysis of fluid-solid reaction in fixed-bed [2]Chen Y F,Zhang Z C.Kinetics of reduction of porous reactors under isothermal conditions.Chem Eng,1970, hematite pellets.Chem Metall,1987,8(2):9 3412):1308 (陈字飞,张宗诚。多孔铁矿石球团还原动力学.化工冶金, [14]Wang N C.Course of Calculation Method.Beijing: 1987,8(2):9) Higher Education Press,2004 [3]Huang Z C,Wu K,Hu B,et al.Non-isothermal kinetics (任能超。计算方法简明教程.北京:高等教育出版社, of reduction reaction of oxidized pellet under microwave 2004) irradiation.J Iron Steel Res Int,2012,19(1):1 [15]Wang X L.Iron and Steel Metallurgy:Iron Part.2nd (4]Jiang YY,Xu Z H.The numerical analysis of mass trans- Ed.Beijing:Metallurgical Industry Press,2006 fer resistance in fixed bed.Chem Eng Equip,2011(1):8 (王筱留.钢铁冶金学:炼铁部分.2版.北京:冶金工业 (姜元勇,徐曾和.固定床中的传质阻力的数值分析.化学 出版社,2006) 工程与装备,2011(1):8) [16]Bao H,Xu Z H,Zha J R.Applying the three interface [5]Ramachandran P A,Doraiswamy L K.Modeling of non- model to reduction process in moving bed.Comput Appl catalytic gas-solid reactions.AIChE J,1982,28(6):881 Chem,1988,5(1):12 [6]Pan Z Y,Hu M P,Shu J Z.Study on noncatalytic gas- (包宏,许志宏,查金荣.三界面模型在移动床还原过程中 solid homogeneous model in complex reactions.J Zhe- 的应用.计算机与应用化学,1988,51):12) jiang Univ Technol,1995,23(2):106 [17]Fan D Q.Studies on the Reduction Kinetics of Iron Oride (播志彦,胡茂平,舒季钊.复杂反应中的非催化气·固均 Pellets [Dissertation].Beijing:University of Science and 相模型研究.浙江工业大学学报,1995,23(2):106) Technology Beijing,2012 [7]Wen C Y.Noncatalytic heterogeneous solid fluid reaction (范德球.球团矿还原过程动力学模型研究[学位论文].北 models.Ind Eng Chem,1968,60(9):34 京:北京科技大学,2012)
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