Synthesis and Properties of a Novel Ethylene Glycol Monobutyl Ether Palm Oil Monoester Biofuel

摘要: Ethylene glycol monobutyl ether palm oil monoester (EGMEPM) was synthesized through transesterification with and (EGME). Through L9(34) orthogonal experiments, optimum conditions were gained as: n(EGME):n(palm oil) = 10:1, w(metal sodium) 1.2% total amount of alcohol at 70°C for 120 min. EGMEPM yielded 85.7%. The new biofuel had a high cetane number (77), good solubility, large flash point. Engine combustion experiment testified that burning the novel bioenergy has little influence on engine operation. Compared 0# diesel fuel, pressure lifting ratio reduced 2.9%–23.9% B25 blends 12.8%–38.9% (B100), maximal instantaneous heat release rate lowered by 11.6%–33.3% 26.8%–42.7% B100, respectively. When burnt B100 under partial loads 1400 rpm, smoke, CO, HC, NOX emissions reduced.