Effect of Rotation Direction of Rotary Reactor and Particle Ratio on Mean Residence Time

doi:10.11930/j.issn.1004-9649.2012.9.43.4

Abstract

Abstract: The mean residence time(MRT) of particles in rotary retort affects the oil shale distillation effect and yield of shale oil with distillation technology using solid heat carrier. Based on the oil shale distillation experiment system, a mixture of oil shale particles and shale ash is studied, and the impacts of particle ratio and rotation direction of rotary reactor(with upender in it) on MRT is analyzed by tracer particle method under the condition of cold experiments. The experimental results demonstrate that different particle ratios lead to different particle average sizes of the mixture and longer residence time in the reactor for the mixture with smaller particle average size. Because of the structural characteristics of upender within the reactor, different particle moving patterns are formed when the rotation direction is different. The higher tumble distance of surface layer particles contributes to longer residence time when the reactor upender works at a right angle.

Key words: oil shale distillation, solid heat carrier, residence time, particle mixing ratio, reactor upender

CLC Number:

TK16

SUN Bao-min, WANG Gong, WU Si-zhu, LI Shao-hua, ZHANG Li-dong. Effect of Rotation Direction of Rotary Reactor and Particle Ratio on Mean Residence Time[J]. Electric Power, 2012, 45(9): 43-47.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2012.9.43.4

https://www.electricpower.com.cn/EN/Y2012/V45/I9/43

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