Abstract: Alknolamide non-ionic emulsifier which is biodegradable and enviro nment-friendly was synthesized from bio-diesel or fuel oil and diethanolamine. The emulsifier to 0^# diesel and biodiesel microemulsion was verified. The results show that the emulsifier which was synthesized by bio-diesel and diethanolamine has a good performance of the micro-emulsion. Emulsion oil in the effects of trace additives can be miscible with 0^# on the market. The interaction of water and methanol in the emulsification process were also studied. The mixture ratio of emulsified diesel was 64% diesel, 12% emulsifier, 3% additive, and 21% solvent.

Key words: emulsifier, alkanolamide, emulsified diesel fuel, emulsified bio-diesel