李风海,刘雪飞,马名杰,李振珠,杨自强,周美洁,颜丙才

• 1:菏泽学院化学化工学院
• 2:河南理工大学化学化工学院
• 3:山东美誉工程咨询有限公司
• 4:山东巨铭能源有限公司

摘要(Abstract)：

煤与生物质共气化是煤炭高效清洁转化和生物质大规模利用的重要途径.借助灰熔点测定仪、X射线衍射仪和FactSage软件，研究了小麦秸秆和茄子秸秆对高硅铝煤灰熔融特性的影响.当小麦秸秆灰(XMA)添加量为18%～20%或茄子秸秆灰(QZA)为9.7%～16%时，混合灰的流动温度为1 340～1 380℃,满足气流床气化的需求.随着秸秆灰含量的增加，碱性组分(如Ca~(2+)、K~+)含量增加,促进了[SiO_4]~(4-)和[AlO_4]~(5-)四面体解聚，导致煤灰网络聚合度降低.随着XMA的添加，低熔点钙长石(CaAlSi_2O_8)和钾长石(KAlSi_3O_8)的生成导致了混合灰的灰熔融温度降低；随着QZA的添加，除生成钙长石、钾长石外，还生成了镁橄榄石，使得QZA对高硅铝煤的助熔效果优于XMA.热力学计算表明，随着秸秆灰含量的增加，液相含量增加，导致灰熔融温度的降低.

关键词(KeyWords)： 秸秆;高硅铝煤;灰熔融特性;FactSage计算;调控机制

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(21875059);; 山东省自然科学基金资助项目(ZR2018MB037)

作者(Author): 李风海,刘雪飞,马名杰,李振珠,杨自强,周美洁,颜丙才

DOI: 10.16393/j.cnki.37-1436/z.2025.02.009

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