000 01737nab a2200205 4500
005 20260520000842.0
008 260224s2009 xxu
245 0 0 _aThe effects of MTBE/ethanol additives on toxic species concentration in gasoline flame
260 _a
_b
_cjul./ago. 2009
270 _a15/06/2010 ; 14/06/2010
300 _a6 p. ; 3543-3548
520 _aTranscripción del resumen del autor. Methyl tert-butyl ether (MTBE) and ethanol as gasoline fuel additives can enhance gasoline fuel octane value. This study evaluates the effects of these oxygenated additives (MTBE and ethanol) at 10% by volume on the main combustion intermediates in a low-pressure laminar premixed gasoline flame using synchrotron radiation. The photoionization mass spectra of three flames were presented, and the temperatures of flames were measured by a thermocouple. The relative concentrations of five typical combustion toxic species in the gasoline, gasohol, and MTBE/gasoline flame were compared. It is observed that ethanol and MTBE both delay the oxidation of aromatics in gasoline, and MTBE plays a more obvious role than ethanol. It is also shown that the addition of ethanol leads to an increased concentration of acetaldehyde, whereas the addition of MTBE has no significant effect on the concentration of acetaldehyde. The results obtained provide data for the analysis of intermediates and radicals in flames, which is of use in establishing the chemical kinetic processes of gasoline/oxygenated additive flames.
581 _a4
773 0 _tEnergy & fuels
_g23
942 _cARTICULO
100 1 _aYao, Chunde
_938135
100 1 _aYang, Xianglan
_942639
100 1 _aRaine, Robert Roy
_942640
999 _c171007
_d171007