The liquid phase maldistribution factor has been investigated in trickle bed reactor, and the results are compared with the previous measurement data from literature by using the Electrical Resistance Tomography. The simulation results are in agreement with the experimental results to some degree. The flow rates and particle sizes have been simulated with the method of multiphase flow. There are two different particles with average diameters of 3.4 mm and 5.3 mm. The flow rate has been studied ranging from 100 ml/min to 1100 ml/min. It has been found that the changes of the particles and liquid flow rates have a significant impact on the distribution of the liquid volume fraction. The internal liquid holdup is more serious, and the wall-flow phenomenon is more obvious in a bigger flow rate. The prediction of the liquid volume fraction distribution is a key research technique. Regression predictions have also been researched on the section near outlet, which can predict the internal flow state of the trickle bed under the condition of high temperature and high pressure. The average liquid volume fraction is linear with flow rates. The maldistribution factor is the index correlation with the flow rates. The results and main conclusions can be used to predict the distributions and get the properties in a trickle bed reactor.

中文翻译：

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CFD法分析Analysis流床反应器的液体分布不均

在滴流床反应器中研究了液相分布不均的因素，并使用电阻层析成像将结果与文献中先前的测量数据进行了比较。仿真结果与实验结果在一定程度上吻合。使用多相流方法模拟了流速和粒径。有两种平均直径分别为3.4毫米和5.3毫米的颗粒。已经研究了从100ml / min至1100ml / min的流速。已经发现，颗粒的变化和液体流速对液体体积分数的分布具有显着影响。内部液体滞留更严重，并且在大流量下壁流现象更加明显。液体体积分数分布的预测是一项关键的研究技术。还对出口附近的断面进行了回归预测研究，可以预测高温高压条件下滴流床的内部流动状态。平均液体体积分数与流速成线性关系。分布不均的因素是与流量的指数相关性。结果和主要结论可用于预测滴流床反应器的分布并获得其性能。分布不均的因素是与流量的指数相关性。结果和主要结论可用于预测滴流床反应器的分布并获得其性能。分布不均的因素是与流量的指数相关性。结果和主要结论可用于预测滴流床反应器的分布并获得其性能。