催化重整反应在乳化油着火过程中的研究

Ignition process study of emulsified fuel’s catalytic reforming reaction

关键词:  乳化燃料  催化点火  催化重整反应+  点火延迟  点火温度

Key words:  Emulsified fuel  Catalytic ignition  Catalytic reforming reaction~+  Ignition delay  Ignition temperature

摘要:

为研究乳化油的点火延迟,从实验和计算两方面研究了催化重整反应对乳化油着火过程的影响,对比了柴油和掺水量为20%(质量比)乳化油在有、无催化剂条件下的温升曲线。从实验和计算结果都可以看出,乳化油的温升曲线比柴油滞后,但在有催化剂的情况下能够减小与柴油之间的差异。通过本实验还证实了燃料的着火首先发生在涂有催化剂的表面,然后向空间传播,使着火变得容易。可见催化重整反应对乳化油的着火有着积极的作用。

Abstract:

The ignition process of emulsified fuel’s catalytic reforming reaction in constant volume chamber was studied and the ignition curves of diesel oil,emulsified fuel(containing 20wt% water) with or without catalyst were compared.From the results of experiment and calculation,it is shown that the emulsified diesel fuel’s ignition delay is longer than that of pure diesel oil,but if there was catalytic reforming reaction,the ignition delay would be shortened.Through the experiment,it is also verified that the ignition of fuel firstly occurs on the surface covered catalyst,and then spreads out the space to make the ignition easy.It is showed that catalytic reforming reaction takes an active part in the ignition of emulsified fuel.