中文摘要：

将稻米油生物柴油分别与0^#柴油和煤直接液化柴油掺混，研究生物柴油与石化柴油混合燃料的低温流动性能。结果表明，两种石化柴油均能降低生物柴油的冷滤点、倾点和运动黏度。与0^#柴油掺混，φ（生物柴油）-60％时，混合燃料冷滤点和倾点最低分别为-10℃和-15℃；与煤直接液化柴油掺混，φ（生物柴油）-80％，就可以使混合燃料的冷滤点和倾点分别降到-10℃和-16℃。

英文摘要：

Rice oil biodiesel was separately blended with 0^# diesel and diesel from direct coal liquefac- tion,and cold flow properties of a biodiesel-diesel blend fuel were researched. Results indicated that two kinds of diesel both reduced cold filter plugging point, pour point, and kinematic viscosity of biodiesel.Cold filter plugging point and pour point of blend fuels lowered respectively to -10 ℃ and - 15 ℃ when biodiesel accounted for 60% of a blend fuel of biodiesel and 0^# diesel.Cold filter plugging point and pour point of blend fuels lowered respectively to -10℃ and -16 ℃ when biodiesel accoun- ted for 80% of a blend fuel of biodiesel and diesel from direct coal liquefaction.