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›› 2012, Vol. 12 ›› Issue (5): 876-881.

• 材料工程专栏 • 上一篇    下一篇

高温铜渣催化木屑水蒸气气化的实验研究

李娟琴 胡建杭 王华 邓双辉 胡威   

  1. 昆明理工大学 冶金与能源工程学院 昆明理工大学工业节能与能源新技术云南省高校工程研究中心 昆明理工大学冶金与能源工程学院 昆明理工大学冶金与能源工程学院 昆明理工大学冶金与能源工程学院
  • 收稿日期:2012-06-25 修回日期:2012-08-21 出版日期:2012-10-20 发布日期:2012-10-20
  • 通讯作者: 胡建杭

Experimental Study on Steam Gasification of Sawdust with High Temperature Copper-containing Slag

LI Juan-qin HU Jian-hang WANG Hua DENG Shuang-hui HU Wei   

  1. Engineering Research Center of Metallurgical Energy Conservation & Emission Reduction Province Engineering Research Centre of Industrial Energy Conservation and New Energy Technology, Kunming University of Science and Technology Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology
  • Received:2012-06-25 Revised:2012-08-21 Online:2012-10-20 Published:2012-10-20
  • Contact: HU Jian-hang

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被引次数

1

摘要： 利用高温铜渣的显热作为外热源，进行铜渣催化木屑水蒸气气化的实验研究，通过XRD分析催化反应前后铜渣的物相组成，结合催化气化后产气特性分析，推断铜渣的催化活性组分，测定气化反应前后铜渣的温度，计算铜渣的显热量和余热利用率. 结果表明，催化气化后铜渣出现Fe2O3特征峰，煅烧渣的Fe2O3和Fe3O4特征峰减少且强度减弱. 催化后H2含量明显增加，CH4和C2H4含量明显降低. 由此推断铜渣的催化活性组分为Fe2O3和Fe3O4，其含量越高，铜渣催化效果越好. 气化温度(720~950℃)范围内铜渣温度降低130~240℃，可回收利用的显热量为151.89~237.48 kJ/kg，余热利用率达18.49%~22.63%.

关键词: 铜渣, 余热, 水蒸气气化, 木屑

Abstract: Experiment of sawdust steam gasification catalyzed by copper-containing slag was carried out using its waste heat as external heat source. Catalytic activity components of the slag were inferred and catalytic activity was evaluated by analysing its phase composition before and after the catalytic reaction by XRD and characterization of gas product. Sensible heat and utilization rate of waste heat of the slag were calculated by determining the temperatures of catalyzed copper slag before and after gasification. The results show that untreated copper slag presents characteristic peaks of Fe2O3 and the number of characteristic peaks of Fe2O3 and Fe3O4 is reduced and their strength weakened for calcined copper slag after catalytic gasification. Volume fraction of H2 significantly is increased and volume fractions of CH4 and C2H4 are significantly reduced after catalytic gasification. It is infered that catalytic components of the slag are Fe2O3 and Fe3O4 and its catalytic activity is determined by the content of Fe2O3 and Fe3O4. The higher the content of Fe2O3 and Fe3O4, the better the catalytic activity of the slag. The recycling sensible heat of the slag and utilization rate of waste heat are 151.89~237.48 kJ/kg and 18.49%~22.63% respectively for the temperature reduction of the slag by 130~240℃ within the gasification temperature range from 720 to 950℃.

Key words: copper slag, waste heat, steam gasification, sawdust

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