生物质与煤混燃机理:固态沉积特性

杨天华; 吕峰; 开兴平; 贺业光; 李润东

生物质与煤混燃机理:固态沉积特性

沈阳航空航天大学, 辽宁省清洁能源与环境工程研究所, 辽宁沈阳 110136

基金项目: 国家重点基础研究发展规划(973计划, 2011CB201500); 国家自然科学基金(51176130)

详细信息

通讯作者:
杨天华(1974-), 女, 博士、教授, 生物质能利用。 E-mail: thyang@sau.edu.cn。

中图分类号: TK6
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出版历程
- 收稿日期: 2011-09-21
- 刊出日期: 2012-03-31

Mechanism of coal and biomass co-combustion: Deposition characteristics

Shenyang Aerospace Uniersity, Clean Energy and Environmental Engineering Institute, Shenyang 110136, China

摘要

摘要: 为了解在1 200 ℃不同反应时间条件下宜阳煤与水稻秸秆混燃的沉积性质,以18 kW的沉降炉为实验平台,利用扫描电镜及能谱,X射线衍射和电子探针方法对混燃的沉积物进行研究。研究表明,不同的混合比例或者不同反应时间条件下,沉积物中的Si、Al和Ca元素变化不大;表面的钾长石的黏性使沉积物更容易富集,而沉积物内部钾长石使沉积物的结构更加稳定;铝硅酸盐和Fe元素在沉积过程中都起了重要的作用。
- 混燃 /
- 动态 /
- 沉积特性
Abstract: Deposition behavior of coal and rice straw co-combustion is studied in different reaction time at 1 200 ℃. The deposition was analyzed by scanning electron microscopy and spectroscopy, X-ray diffraction and electron microprobe in the 18 kW drop tube furnace. The results show that Si, Al and Ca of deposition get a little change in different mixing ratio or different reaction time. The K-feldspar stickability of surface make it easier to deposit, and K-feldspar makes the deposits structure more stable. Aluminum silicate and Fe in the deposition process plays an important role.
- co-firing /
- dynamic /
- deposition characteristic

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