Abstract

The paper reports the results of the fractional extraction of petroleum asphaltenes using a toluene/acetone mixture. This method was shown to be effective in extracting polyaromatic structures with various properties and in predicting a number of their composition parameters and structural properties, such as molecular weight, condensation level, aliphaticity, the number of paramagnetic centers, and metal content. It was found that the fractional extraction from petroleum asphaltenes with a toluene/acetone (60 : 40) mixture produces 47.4 wt % of polyaromatic structures with increased condensation level. Such asphaltene structures can be considered as graphene precursors and can be used for the preparation of various carbon materials.

中文翻译：

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从石油沥青中提取高浓缩多芳族化合物

摘要

本文报道了使用甲苯/丙酮混合物分馏石油沥青质的结果。事实证明，该方法可有效地提取具有各种特性的多芳族结构，并预测其组成参数和结构特性，例如分子量，缩合度，脂肪族，顺磁性中心数和金属含量。发现用甲苯/丙酮（60∶40）混合物从石油沥青质中分馏可产生47.4重量％的具有增加的缩合度的多芳族结构。这样的沥青质结构可以被认为是石墨烯前体，并且可以用于制备各种碳材料。