沥青质含量增高时，原油质量变坏。
Asphaltene content increased, the deterioration of oil quality.
沥青质含量的增加是沥青老化后性质变坏的重要原因。
It has been found that the age hardening of asphalts is mainly due to the increase of asphaltene content.
讨论了超声波作用对重油的粘度、残炭和沥青质含量的影响。
The kinetic viscosity, carbon residue and the content of asphaltene of the heavy oil were investigated under function of ultrasonic wave.
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