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氧气对胜利褐煤水蒸气气化半焦结构及反应性的影响

孙加亮 ,  陈绪军 ,  王芳 ,  林雄超 ,  王永刚

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引用本文: 孙加亮, 陈绪军, 王芳, 林雄超, 王永刚. 氧气对胜利褐煤水蒸气气化半焦结构及反应性的影响[J]. 燃料化学学报, 2015, 43(7): 769-778. shu
Citation:  SUN Jia-liang, CHEN Xu-jun, WANG Fang, LIN Xiong-chao, WANG Yong-gang. Effects of oxygen on the structure and reactivity of char during steam gasification of Shengli brown coal[J]. Journal of Fuel Chemistry and Technology, 2015, 43(7): 769-778. shu

氧气对胜利褐煤水蒸气气化半焦结构及反应性的影响

    通讯作者: 王永刚
  • 基金项目:

    The 12th Five-Year Plan of National Science and Technology Support (2012BAA04B02). (2012BAA04B02)

摘要: 为了研究氧气对半焦的结构变化和反应性的影响,采用不锈钢模拟气流床反应器,在8种不同气氛,800和900 ℃条件下,进行了胜利褐煤水蒸气气化实验。利用拉曼光谱和热重分析仪分别表征了半焦的结构和本征反应性。结果表明,在800和900 ℃条件下,添加的氧气对半焦结构变化的影响方式不同;半焦结构的变化是影响碱金属和碱土金属(AAEM)挥发的主要因素。在不同温度下,添加的氧气对Na挥发的影响和对结构的作用类似,H2O/O2混合气氛促使气化所得半焦的反应性进一步降低。半焦的反应活性指数与拉曼光谱谱带比值 I (GR+VL+VR)/ID具有很好的相关性。

English

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  • 收稿日期:  2015-02-03
  • 网络出版日期:  2015-05-30
通讯作者: 陈斌, bchen63@163.com
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