复合生物柴油乳化油的制备及其稳定性研究

Preparation of Emulsified Complex Biodieseland and the Study of Its Stability

以20%生物柴油,80%石化柴油混合制成复合生物柴油(B20),通过加入表面活性剂制成复合生物柴油乳化油。初步探讨了乳化剂的用量、水混合量和乳化时间对该乳化油水剂稳定性的影响。实验表明:采用石油磺酸钠和壬基酚聚氧乙烯醚复合乳化剂,复合生物柴油(B20)添加复合乳化剂6%,最佳油水比1:4,乳化时间25min,制得稳定性较好的乳化液,乳化液室内保存45d不分层。添加复合乳化剂8%时,乳化液室内保存300d不分层。

Complex biodiesel was prepared with 20% biodiesel and 80% diesel. The experiment of water mixing was processed in emulsified complex biodiesel production. The influences of the following factors on the stability of emulsified complex biodiesel were studied ： the dosage of emulsifier, the water content and the time of emulsifying. The optimum conditions in the experiment were as follows： the ratio of oil to water 1：4, the dosage of emulsitier 6% , the time of emulsifying 25 min. A good stability of the emulsified complex biodiesel is obtained, no stratification is found in storage of 300 days in room temperature, the dosage of emulsifier 8% , in storage of 300 days. The emulsion principle is also discussed.