Strategies for improved stability of methanol-in-diesel emulsions

Abstract This study is motivated by the need to present a robust methodology for preparing stable methanol-in-diesel emulsions use in compression ignition engines with specific objective of maximizing methanol content. Specifically, it involved exploring feasibility conventional surfactants such as Tween-80 and Span-80 non-conventional 1-dodecanol, pentanol, butanol. The hydrophilic-lipophilic balance (HLB) values surfactant were varied from 7 15 investigate role HLB on stability macroemulsion. It observed that macroemulsion an value 10 provides best results. Using 10, three macroemulsions wt.%, 20 wt.% prepared using ultrasonication. However, only was be at least days after preparation. Next, microemulsions diesel-methanol produced Among these, 1-dodecanol found out most suitable owing its ability form any mixing ratio diesel-methanol, high cetane number (63.6). has clearly brought strategies both macro microemulsions. Overall, results presented current work are expected aid efforts adapting fuel blends.