对试验所得的固体颗粒停留时间分布曲线的分析明显表明床内存在着由于流体动力特性和几何结构引起的颗粒返混。
The experiments show that the solid reflux due to hydrodynamic and geometrical reasons are clearly observed in the analysis of the RTD (residence time distribution) curves.
基于对双通道渣油气化喷嘴喷雾性能和炉内停留时间分布的研究，提出了炭黑颗粒的分布模型。
A distribution mod-el of soot particles has been proposed based on the atomization characteristics of twin-fluid gasification burner and the residence time distribution (RTD) of the gasifier.
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