Population correlation function P(t) has been used to examine the mechanism of breakage and coalescence of clusters at steady-state under shear, the results are in qualitative a greement with exPeriments. The research indicates that with a weak potential the mechanism of breakage and coalescence of clusters at steady-state under shear is predomnately controlled by the paticle-particle model, but that with a strong potential the mechanism shifts to that of clustercluster for large clusters; for small clusters, however, the mechanism of particle-particle model seems still to remain predondnate, further work needs to be done.
以泔水油为原料制备生物柴油,利用2次酯化过程,通过正交实验优化,得到最佳的酯化条件为:醇油摩尔比为5∶1,催化剂用量为1.0%,反应温度为110℃,一次酯化反应时间3.5 h,二次酯化反应时间1 h,处理后的原料油酸值为2.6570mg/g。利用两次酯化的中性油为原料,在醇油摩尔比为7∶1,催化剂用量为1.0%,反应温度为65℃,反应时间75 m in的条件下,醇解反应的转化率为94%以上,总体指标达到、部分指标超过0#柴油的质量要求。
