神东煤液化残渣显微组分的特征与分类研究
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摘要: 在PSU处理能力为0.1t/d的小型连续液化装置上对神东煤进行了加氢液化试验，对其液化残渣进行了显微光学研究。结果表明，在液化过程中，原料煤中的壳质组和镜质组全部转化，惰质组部分转化，在残渣中可见未反应的惰质组，同时在残渣中出现中间相小球体和半焦等新生组分。矿物质大量富集，并基本保持煤中原有的形态特征。THF处理后残余惰质组反射率在2.0%~3.8%，略高于煤中高反射率惰质组反射率，煤中高反射率惰质组是残余惰质组的主要来源。Abstract: Liquefaction experiment of Shendong coal was run with 0.1t/d PSU. The residues were analyzed by means of microscopy. It is found that coal macerals change significantly. Liptinite and vitrinite convert entirely and inertinite converts partly. Unconverted inertinite can be observed from residues. There are also some newly formed components such as mesophase and semicoke. Mineral matters accumulate and keep their petrological features in coal. The reflectance of unconverted inertinite in residue dissolved by THF ranges from 2.0% to 3.0%,which is a little higher than that of high reflectance inertinite in coal. The high reflectance inertinite in coal is the main source of unconverted inertinite in residue.
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Key words:
- Shendong coal /
- hydroliquefaction /
- residue /
- microscopic characteristics
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