白金平板上におけるメタノールの触媒反応により生成したホルムアルデヒドのレーザ誘起蛍光像の観察

概要

論文の詳細を見る
The visualization for analyzing the reaction mechanism of catalytic combustion of methanol/air mixture has been newly attempted. The measurement of formaldehyde distribution above a platinum plate in premixed methanol gas flows was carried out by the LIF (laser-induced fluorescene) method. Formaldehyde has the fluorescence spectra in the range of 340.6〜493.3 nm when it is excited by the thrid-harmonic wavelength of the Nd : YAG laser (355 nm). In this work, formaldehyde was excited by one pulsed laser shot and the fluorescence at wavelength of 412.2 nm was selected. By this laser technique, the time-resolved instantaneous distribution of formadehyde yielded during catalytic combustion of methanol/air mixtures on a platinum plate has been successfully measured. The results show that the distribution of formaldehyde fluorescence above the platinum plate is affected by gas velocity, catalyst temperature, and, in particular, air-fuel ratio. These results show good correspondence with those of other studies of conventional flow-reactor experiments, and con-firm that this measurement is a reliable method for analyzing the reaction mechanism of catalytic combustion.
一般社団法人日本機械学会の論文
1995-11-25