准东高钠煤热解过程中钠的迁移特性实验研究

宋维健 宋国良 张海霞 范金龙 吕清刚

引用本文: 宋维健, 宋国良, 张海霞, 范金龙, 吕清刚. 准东高钠煤热解过程中钠的迁移特性实验研究[J]. 燃料化学学报, 2015, 43(1): 16-21. shu
Citation:  SONG Wei-jian, SONG Guo-liang, ZHANG Hai-xia, FAN Jin-long, LÜ Qing-gang. Experimental study on alkali metal transformation during high-sodium Zhundong coal pyrolysis[J]. Journal of Fuel Chemistry and Technology, 2015, 43(1): 16-21. shu

准东高钠煤热解过程中钠的迁移特性实验研究

    通讯作者: 宋国良,男,副研究员,博士,Tel:13699186030;E-mail:songgl@iet.cn.
  • 基金项目:

    国家自然科学基金(21306193) (21306193)

    中国科学院战略性先导科技专项(XDA07030100). (XDA07030100)

摘要: 针对新疆准东煤田高钠煤(简称准东高钠煤)在发电锅炉燃烧时遇到结渣黏污严重的问题,基于立式管式炉热解,利用电感耦合等离子体-原子发射光谱(ICP-AES)、X射线衍射(XRD)以及扫描电镜-能谱(SEM-EDX)等检测手段,分析了准东高钠煤在不同热解温度下碱金属钠的析出特性、赋存形态以及热解半焦的微观形貌.利用Fact sage 6.1化学热力学平衡计算软件分析了碱金属的析出形式.结果表明,准东高钠煤中的碱金属钠在热解过程中有部分析出,开始的析出温度为600 ℃,当热解温度达900 ℃时,碱金属钠的析出率为40.2%;碱金属钠在热解过程中主要以NaCl的形式析出;热解温度低于900 ℃时,没有熔融态物质生成.

English

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  • 收稿日期:  2014-08-07
  • 网络出版日期:  2014-10-15
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