重油-煤-水油基多相浆的流变行为

Rheological Behaviour of Oil-Based Heavy Oil,Coal and Water Multiphase Slurries

使用适当的分散剂和乳化剂制备出一种油基（Ｗ／Ｏ）重油、煤、水三元混合燃料，研究了各组分含量、温度和分散剂含量对体系流变性和稳定性的影响．结果表明在所有情况下混合燃料均表现出屈服假塑性行为，随着内相含量的增加、温度的降低，体系的屈服应力增大，随着分散剂含量的增加（０２％－１０％），体系的粘度降低．

A kind of oil-based multiphase slurry composed of heavy oil-coal powder water (synfuel) was prepared by suing suitable dispersant and emulsifier.The effects of components content,experiment temperature and dispersant content on its rheological properties have been investigated.It was observed that the synfuel showed pseudoplastic behaviour with apparent yield stress,and the apparent yield stress increased with increasing inner phase coal and water content.It was also observed that the apparent viscosity of the synfuel decreased with increasing temperature,and the apparent wiscosity decreased with increasing dispersant content(from 0.2% to 1.0%).