大庆和孤岛渣油蜡的结构组成研究

用X-射线衍射、小角X-射线散射和红外光谱法测定大庆及孤岛渣油中饱和蜡与芳香蜡的结晶度、微晶粒大小、分支度和碳氢基团含量,并用简化密度法计算其平均结构族组成。实验结果表明,大庆和孤岛饱和蜡间或芳香蜡间的结构组成差别不大,而饱和蜡与芳香蜡两者的结构组成有相当大的差别。

CRYSTALLINE STRUCTURE AND CHEMICAL COMPOSITION OF MICROCRYSTALLINE WAXES IN RESIDUAL OILS FROM DAQING AND GUDAO

Crystallinities, numbers of straight chain carbon(for saturated waxes only), degrees of branching, the numbers of carbon-hydrogen groups of saturated waxes and aromatic waxes isolated from Daqing and Gudao residual oils,were determined individually by X-ray diffraction method, Small Angle X-ray Scattering technique and Infrared Spectrography. The mean structure group was calculated by simplified Densimetric Method. It was found that the difference in structures and compositions of two saturated waxes or two aromatic waxes from Daqing and Gudao was not large, while the difference in structure and composition of saturated wax and aromatic wax from the same residual oil was quite substantial.