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沥青芳香度的光谱计算方程
Spectral Calculating Equation of Asphalt Aromaticity
【摘要】 运用13C-NMR法直接测得沥青芳香度fa,同时应用红外光谱法(IR)测得1600cm-1,460cm-1,1380cm-1吸收峰的吸光度,然后对两者关联,建立了fa的光谱计算方程。该方程适用于一般精确度的沥青和渣油的fa值的计算,误差不大于5.5%,与B-L法结果也较为一致。
【Abstract】 The relation between aromaticity Obtained by the method of 13C-NMR and absorbance at 1600 cm-1, 1460 cm-1, 1380 cm-1 obtained by the method of IR spectrometry is studied. The equation of spectral calculation for fa is established which can be used for calculating fa of asphalts and residual oil with higher accuracy, the errors being less than 5.5% and the values obtained in agreement with that calculated by B-L method.
【关键词】 重油;
沥青;
光谱分析;
红外光谱;
芳香度;
碳-13核磁共振;
【Key words】 heavy oil; asphalt; spectral analysis; infrared spectral; aromaticity; 13C-NMR;
【Key words】 heavy oil; asphalt; spectral analysis; infrared spectral; aromaticity; 13C-NMR;
- 【文献出处】 华东化工学院学报 , 编辑部邮箱 ,1990年06期
- 【被引频次】5
- 【下载频次】147