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首页> 外文期刊>Journal of industrial and engineering chemistry >Prediction of bitumen content in oil sand based on FT-IR measurement
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Prediction of bitumen content in oil sand based on FT-IR measurement

机译：基于FT-IR测量的油砂沥青含量预测

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FT-IR spectra of bitumen are utilized to propose simple prediction method of bitumen content in oil sand. Analysis and fractionation of Athabasca oil sand were carried out by standard method. A fraction of bitumen dissolved in tetrahydrofuran (THF) was 9.1 wt% and insoluble fraction was found as concomitantly clean clay (sand). The asphaltene fraction of oil sand was 1.42 wt%, which has higher sulfur content and lower H/C molar ratio than that of maltene. The clean clay and bitumen were used to prepare clay/bitumen composites. FT-IR spectra of different clay/bitumen composite were measured and compared. From analysis of the absorbance data, the empirical equation to predict bitumen content in oil sand was acquired using linear least square fitting. Using this equation, bitumen content of Athabasca oil sand was predicted to have a value of 10.5 wt% which is similar to 9.1 wt% of bitumen content extracted by THF solvent from oil sand.
机译：利用沥青的FT-IR光谱，提出了油砂中沥青含量的简单预测方法。阿萨巴斯卡油砂的分析和分馏采用标准方法进行。溶解在四氢呋喃（THF）中的沥青馏分为9.1 wt％，发现不溶的馏分是伴随而来的清洁粘土（沙土）。油砂的沥青质分数为1.42 wt％，比丙二烯具有更高的硫含量和更低的H / C摩尔比。干净的粘土和沥青用于制备粘土/沥青复合材料。测量并比较了不同粘土/沥青复合材料的FT-IR光谱。通过对吸光度数据的分析，使用线性最小二乘拟合获得了预测油砂中沥青含量的经验公式。使用该方程式，阿萨巴斯卡油砂的沥青含量预计值为10.5 wt％，与THF溶剂从油砂中提取的沥青含量的9.1 wt％相似。

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