从热稳定性、降粘性能、原油馏分分析、物理模拟试验方面对化学添加剂进行了性能评价。
Performance of chemical additives has been evaluated from thermal stability, viscosity reducing, oil fraction analysis and physics simulation test.
主要采用色谱-质谱联机(GC - MS)成分分析法对生物质焦油及其馏分试样进行成分分析。
With gas chromatographic and mass spectrum (GC-MS) analysis technology, the chemical composition of biomass tar and its distillations were analyzed.
全二维气相色谱与普通一维色谱对比，在重馏分油的芳烃组分分析上体现了极大优势。
The comparison with conventional method, gas chromatography coupled to mass spectrometry(GCMS), illustrated the obvious advantages of the method for heavy gas oil analysis.
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