Influence of the Granule Morphology of MgO Particles on the Yield of Pyrolysis Products

doi:10.12068/j.issn.1005-3026.2019.11.011

Abstract

Abstract: The MgO particles prepared by pyrolysis process possess different morphologies and uneven size distribution of the particles. There are some errors from the traditional numerical simulations to the experimental results， where the particles assume to be the standard spherical and same-sized particles. Therefore， an extension factor (α)， fullness factor (k) and shrinkage ratio (β) are introduced to characterize the distributions of several specific types of irregular MgO particles inside a jet-flow pyrolysis reactor. All three parameters are found to affect the yield of MgO particles greatly. When the parameters of α， k and β are -0.25， 1 and 1， respectively， the yield is maximum with a value of 96.88%， while it becomes a lower one of 80.39%， corresponding to α=0.25， k=2 and β=1.5.

Key words: reactor, pyrolysis, irregular spherical particle, numerical simulation, yield

CLC Number:

TQ031.7

LYU Chao， NIU Li-ping， ZHAO Qiu-yue， WANG Wen-bo. Influence of the Granule Morphology of MgO Particles on the Yield of Pyrolysis Products[J]. Journal of Northeastern University Natural Science, 2019, 40(11): 1579-1583.

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