In this work, the oxidation of MTBE, ETBE, DIPE, and TAME was investigated experimentally in a high-pressure jet-stirred reactor (JSR) in the high-temperature oxidation regime (800-1150 K, 10 atm, phi = 0.5-2, 0.1% of ether, and 0.5 s). New experimental data on mole fractions of reactants, intermediates, and final products were measured using probe sampling followed by gas chromatograph (GC) analyses. These data were used to extend an already available oxidation reaction model for primary reference fuels. This extension to the ether components only required die insertion of a small subset of new primary reactions where kinetic parameters are evaluated on the basis of similarity and analogy rules inside reaction classes and generalized prediction methods for H-abstraction reactions. The fair agreement observed between experimental data and model predictions in different operating conditions confirms the validity of the proposed approach and allows the modeling of oxidation and combustion of commercial gasoline.
Oxidation of oxygenated octane improvers: MTBE, ETBE, DIPE, AND TAME
FARAVELLI, TIZIANO;RANZI, ELISEO MARIA;
1998-01-01
Abstract
In this work, the oxidation of MTBE, ETBE, DIPE, and TAME was investigated experimentally in a high-pressure jet-stirred reactor (JSR) in the high-temperature oxidation regime (800-1150 K, 10 atm, phi = 0.5-2, 0.1% of ether, and 0.5 s). New experimental data on mole fractions of reactants, intermediates, and final products were measured using probe sampling followed by gas chromatograph (GC) analyses. These data were used to extend an already available oxidation reaction model for primary reference fuels. This extension to the ether components only required die insertion of a small subset of new primary reactions where kinetic parameters are evaluated on the basis of similarity and analogy rules inside reaction classes and generalized prediction methods for H-abstraction reactions. The fair agreement observed between experimental data and model predictions in different operating conditions confirms the validity of the proposed approach and allows the modeling of oxidation and combustion of commercial gasoline.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
