论文部分内容阅读
本文对溶解气体振荡释放体系使用了四极质谱进行追踪检测。确认了该体系为一种振荡的物理体系。对溶解气体振荡释放过程的实验考察表明该体系对溶解气体的放空流量等均有阈值要求。该体系对温度的变化是敏感的。在本文的实验条件下,体系对压力、搅拌等扰动是稳定的。体系内的丙烯与合成气在一定的条件下还可以发生一种“协同”作用。实验考察表明,溶解气体振荡释放过程的产生是由于体系在过饱和状态下成核机制所致。在非平衡条件下,气泡生长与上升过程所造成的负反馈条件是形成周期性现象的根本原因。本机制应对溶解度大而且沸点相差也大的二元气液体系具有普适性。
In this paper, the quadrupole mass spectrometry was used to trace the dissolved gas oscillation release system. The system was confirmed as a kind of oscillating physical system. The experimental investigation on the process of releasing the oscillations of the dissolved gas shows that the system has threshold requirements for the venting flow of the dissolved gas. The system is sensitive to changes in temperature. Under the experimental conditions in this paper, the system is stable to pressure, stirring and other perturbations. Within the system of propylene and syngas under certain conditions can also occur a “synergistic” effect. The experimental investigation shows that the release of the dissolved gas oscillation is due to the nucleation mechanism of the system in the supersaturated state. Under unbalanced conditions, the negative feedback condition caused by bubble growth and ascent is the root cause of the periodic phenomenon. This mechanism should deal with the universality of the binary gas-liquid system with large solubility and large boiling point difference.