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过程工程学报 ›› 2015, Vol. 15 ›› Issue (6): 999-1005.DOI: 10.12034/j.issn.1009-606X.215216

• 过程与工艺 • 上一篇    下一篇

富钙废渣配煤对焦炭溶损反应的影响

孙章 刘朋飞 李慧星 郭瑞 梁英华   

  1. 华北理工大学化工学院，河北省煤化工工程技术研究中心 华北理工大学化工学院，河北省煤化工工程技术研究中心 华北理工大学化工学院，河北省煤化工工程技术研究中心 华北理工大学化工学院，河北省煤化工工程技术研究中心 华北理工大学化工学院，河北省煤化工工程技术研究中心
  • 收稿日期:2015-05-07 修回日期:2015-09-30 出版日期:2015-12-20 发布日期:2015-12-20
  • 通讯作者: 梁英华

Effect of Blending of Ca-based Slag on Solution Loss Reaction of Coke

SUN Zhang LIU Peng-fei LI Hui-xing GUO Rui LIANg Ying-hua   

  1. Coal Chemical Engineering Research Center of Hebei Province, School of Chemical Engineering, North China University of Science and Technology Coal Chemical Engineering Research Center of Hebei Province, School of Chemical Engineering, North China University of Science and Technology Coal Chemical Engineering Research Center of Hebei Province, School of Chemical Engineering, North China University of Science and Technology Coal Chemical Engineering Research Center of Hebei Province, School of Chemical Engineering, North China University of Science and Technology Coal Chemical Engineering Research Center of Hebei Province, School of Chemical Engineering, North China University of Science and Technology
  • Received:2015-05-07 Revised:2015-09-30 Online:2015-12-20 Published:2015-12-20
  • Contact: LIANg Ying-hua

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被引次数

2

摘要： 将1%富钙碱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，碳素溶损率小于15%时焦炭的溶损反应速率基本不变，碳素溶损率大于15%时溶损反应速率逐渐减小. 焦炭反应后的比表面积随碳素溶损率增加先增大后减小，在溶损率约为15%时最大. 配入富钙碱渣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，溶损速率增幅越大. 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%碱渣的焦炭的溶损反应表观活化能分别为132.15和103.81 kJ/mol.

关键词: 焦炭, 富钙废渣, 溶损反应, 动力学, 活化能

Abstract: Coke was prepared by coking of coal with addition of Ca-based slag as a catalyst. The solution loss reaction of coke at different temperatures (900~1200℃) was studied in a self-made vertical fixed-bed reactor. The results showed that the solution loss rate of coke remained constant when carbon loss rate (x) was less than 15%, and the solution loss rate gradually decreased at x>15%. The specific surface area of coke after reaction first increased and then decreased, and reached the maximum value at x"15%. Furthermore, the addition of slag improved the solution loss rate of coke, and enhanced its reactivity. A random pore model was used to describe the solution loss reaction of coke, and the activation energy of coke and coke with 1% slag was 132.15 and 103.81 kJ/mol, respectively.

Key words: coke, Ca-based slag, solution loss reaction, kinetics, activation energy

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