Abstract: The research history and recent research achievements of emulsified diesel at home and abroad were summarized. The several emulsified mechanisms of emulsified diesel, the used methods (HLB method, PIT method, CER method ) of emulsifier, energy-saving mechanism of emulsification, micro-explosion and accelerated combustion were stressly described. The development direction of future micro-emulsified desel was proposed according to current problems of emulsified diesel.

Key words: emulsified diesel, emulsification mechanism, emulsifier, research progress