钢渣配煤对焦炭溶损反应的影响
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- 英文论文题名：Effect of Blending of Steelmaking Slag on Solution Loss Reaction of Coke
- 论文作者：潘亚宁 ; 段冲 ; 孙章
- 英文论文作者：PAN Ya-ning ; DUAN Chong ; SUN Zhang ; College of Chemical Engineering ; North China University of Science and Technology ; Coal Chemical Engineering Research Center of Hebei Province
- 年：2016
- 作者机构：华北理工大学化学工程学院;河北省煤化工工程技术研究中心;
- 论文关键词：焦炭 ; 钢渣 ; 溶损反应 ; 动力学 ; 活化能
- 英文论文关键词：coke ; steel making slag ; solution loss reaction ; kinetics ; activation energy
- 会议召开时间：2016-12-02
- 会议录名称：第八届中国金属学会青年学术年会论文集
- 语种：中文
- 分类号：TQ520.62
- 学会代码：ZGJS
- 会议名称：第八届中国金属学会青年学术年会
- 会议地点：中国辽宁沈阳
- 主办单位：中国金属学会
- 学会名称：中国金属学会
- 页数：6
- 文件大小：910k
- 原文格式：O
- 会议级别：全国
摘要
将1%转炉钢渣配入焦煤中制备焦炭,采用自制小型垂直固定床反应器研究了900-1200℃下所得焦炭的溶损反应过程。结果表明,在碳素溶损率小于20%时,焦炭的溶损反应速率基本保持不变,而在碳素溶损率大于20%时,溶损反应速率则逐渐减小。钢渣的配入提高了焦炭的溶损反应速率,增大了焦炭的反应性,溶损温度越高,溶损速率增加幅度越大。用随机孔模型描述了焦炭的溶损反应动力学过程,基础焦炭和添加1%钢渣的焦炭的溶损反应的表观活化能分别为133.76 kJ/mol和121.51 kJ/mol。
The coke was prepared from the coking coal added the 1wt.%steelmaking slag as a catalyst.The solution loss reactions of cokes at different temperatures(900-1200℃) were studied by the homemade drop-in-fixed-bed reactor.It was showed that the solution loss reaction rate of coke remains constant when carbon loss ratio(x) is less than 20%,and the solution loss reaction rate gradually decreases at x>20%.Furthermore,the addition of slag improves the solution loss reaction rate of cokes,and enhances coke reactivity.The random pore model was used to describe the solution loss reactions of the cokes,and the activation energies of BC and BC+1%SS are 133.76 kJ/mol and 121.51 kJ/mol,respectively.
The coke was prepared from the coking coal added the 1wt.%steelmaking slag as a catalyst.The solution loss reactions of cokes at different temperatures(900-1200℃) were studied by the homemade drop-in-fixed-bed reactor.It was showed that the solution loss reaction rate of coke remains constant when carbon loss ratio(x) is less than 20%,and the solution loss reaction rate gradually decreases at x>20%.Furthermore,the addition of slag improves the solution loss reaction rate of cokes,and enhances coke reactivity.The random pore model was used to describe the solution loss reactions of the cokes,and the activation energies of BC and BC+1%SS are 133.76 kJ/mol and 121.51 kJ/mol,respectively.
引文
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[11]孙章,李鹏,刘朋飞,等.焦煤中配入钢渣对焦炭热性能的影响[J].燃料与化工,2014,06):1-4.
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[21]李伟伟,李克忠,康守国,等.煤催化气化中非均相反应动力学的研究[J].燃料化学学报,2014,42(03):290-296.
[22]JEONG H J,PARK S S,HWANG J.Co-gasification of coalbiomass blended char with C02 at temperatures of 900-1100℃[J].Fuel,2014,116(0):465-470.
[23]EVERSON R C,NEOMAGUS H W,KASAINI H,et al.Reaction kinetics of pulverized coal-chars derived from inertiniterich coal discards;gasification with carbon dioxide and steam[J].Fuel,2006,85(7):1076-1082.
[24]REN L,YANG J,GAO F,et al.Laboratory Study on Gasification Reactivity of Coals and Petcokes in CO2/Steam at High Temperatures[J].Energy&Fuels,2013,27(9):5054-5068.
[2]周文涛,胡俊鸽,张东丽.日本低成本和环境友好型炼焦新技术的进展[J].世界钢铁,2010,10(1):7-11.
[3]NAITO M,NOMURA S,KATO K.Development of Production and Utilization Technology of Coke with High Strength and High Reactivity[J].Tetsu-to-Hagane,2010,96(5):201-208.
[4]NOMURA S,AYUKAWA H,KITAGUCHI H,et al.Improvement in Blast Furnace Reaction Efficiency through the Use of Highly Reactive Calcium Rich Coke[J].ISU International,2005,45(3):316-324.
[5]NOMURA S,TERASHIMA H,SATO E,et al.Some fundamental aspects of highly reactive iron coke production[J].ISU International,2007,47(6):823-830.
[6]NOMURA S,KITAGUCHI H,YAMAGUCHI K,et al.The Characteristics of Catalyst-coated Highly Reactive Coke[J].ISIJ International,2007,47(2):245-253.
[7]SHARMA A,UEBO K,KUBOTA Y.Role of Fe_2O_3 and CaCO_3on the Development of Carbon Structure of Coke and their Catalytic Activity for Gasification[J].Tetsu-to-Hagane,2010,96(5):280-287.
[8]NOMURA S,NAITO M,YAMAGUCHI K.Post-reaction strength of catalyst-added highly reactive coke[J].ISIJ International,2007,47(6):831-839.
[9]YI H,XU G,CHENG H,et al.An Overview of Utilization of Steel Slag[J].Procedia Environmental Sciences,2012,16(0):791-801.
[10]李鹏,孙章,崔文权,等.钢渣对焦炭热性能的影响[J].煤炭转化,2014,37(02):47-51+56.
[11]孙章,李鹏,刘朋飞,等.焦煤中配入钢渣对焦炭热性能的影响[J].燃料与化工,2014,06):1-4.
[12]SUN Z,UP,GUO R,et al.Preparation of high strength and highly reactive coke by the addition of steel slag[J].Coke and Chemistry,2014,57(10):391-397.
[13]孙章,郭瑞,刘朋飞,等.焦炭动态反应性测定仪[A].2014年第七届中国金属学会青年学术年会[C].北京:中国金属学会,2014.163-167.
[14]孙章,郭瑞,刘朋飞,等.粒焦动态反应性与块焦反应性关系的研究[J].煤炭转化,2015,38(3):70-73.
[15]CHEN S G,YANG R T.Unified mechanism of alkali and alkaline earth catalyzed gasification reactions of carbon by C02 and H2O[J].Energy&Fuels,1997,11(2):421-427.
[16]CAZORLA-AMOR S D,LINARES-SOLANO A,DE LECEA C S-M,et al.Carbon gasification catalyzed by calcium:a high vacuum temperature programmed desorption study[J].Carbon,1992,30(7):995-1000.
[17]MOLINA A,MONDRAG N F.Reactivity of coal gasification with steam and CO2[J].Fuel,1998,77(15):1831-1839.
[18]WEN C Y.NONCATALYTIC HETEROGENEOUS SOLIDFLUID REACTION MODELS[J].Industrial&Engineering Chemistry,1968,60(9):34-54.
[19]BHATIA S K,PERLMUTTER D D.A random pore model for fluid-solid reactions:I.Isothermal,kinetic control[J].AIChE Journal,1980,26(3):379-386.
[20]邵久刚,张建良,王广伟。等.随机孔模型应用于煤焦燃烧的动力学研究[J].过程工程学报,2014,14(1):108-113.
[21]李伟伟,李克忠,康守国,等.煤催化气化中非均相反应动力学的研究[J].燃料化学学报,2014,42(03):290-296.
[22]JEONG H J,PARK S S,HWANG J.Co-gasification of coalbiomass blended char with C02 at temperatures of 900-1100℃[J].Fuel,2014,116(0):465-470.
[23]EVERSON R C,NEOMAGUS H W,KASAINI H,et al.Reaction kinetics of pulverized coal-chars derived from inertiniterich coal discards;gasification with carbon dioxide and steam[J].Fuel,2006,85(7):1076-1082.
[24]REN L,YANG J,GAO F,et al.Laboratory Study on Gasification Reactivity of Coals and Petcokes in CO2/Steam at High Temperatures[J].Energy&Fuels,2013,27(9):5054-5068.