【摘要】 在常压下采用NDJ-7旋转式粘度计测定了生物柴油制备过程中相关混合体系在288.15~365.15 K下的粘度,包括大豆油和生物柴油,甲醇和甘油,甲醇、大豆油和生物柴油三个混合体系.结果表明:混合溶液的粘度均随温度升高而减小,并用最小二乘法分别对三个体系在不同温度下的粘度进行了关联,关联结果良好,可以用来计算不同组成和不同温度下这些混合体系的粘度.更多还原

【Abstract】 Viscosities of the mixtures about the preparation of the biodiesel were determined between 293.15 and 343.15 K under atmospheric pressure by using NDJ-7 rotary viscometer,the mixtures include soybean oil and biodiesel,methanol and glycerol,methanol,soybean oil and biodiesel.The experimental results showed that the viscosities of the mixtures decreased as the temperature increased.And the relationship between the viscosities of the mixtures and temperature was correlated by Andrade Equation using the least square method.The correlation coefficients are approximate to 1.So it can be used to calculate the viscosity of the mixtures at different temperatures and constitutors.更多还原