The ability to stabilize asphaltene of DBSA,DP and DAL as the asphaltene dispersants in toluene/heptane solution was investigated by UV-Vis spectrum.

• 采用紫外-可见光谱法研究了沥青质分散剂对甲苯-正庚烷-沥青质体系中沥青质的稳定作用,通过黏度法考察了沥青质分散剂对沥青质溶液中胶束缔合度的影响。