Shock Tube and Kinetic Modeling Study of Isobutanal Oxidation

Optimization
of chemical kinetic modeling for biobutanol oxidation requires further
investigation on its key stable intermediates, such as aldehydes.
In this study, ignition delay times of isobutanal/oxygen diluted with
argon were measured behind reflected shock waves in the temperature
range of 1100–1650 K, at pressures of 1.3, 5, and 10 atm, and
equivalence ratios of 0.5, 1.0, and 2.0. An isobutanal submodel was
developed on the basis of literature review, and it yields fairly
good agreement with the experimental results under the test conditions.
The reaction pathway and sensitivity analysis were performed to gain
insight into the controlling reaction pathways and reaction steps.