Experiment on Resistance Characteristics of Petroleum Coke Particle Packed Bed Based on Dimensional Analysis
The resistance characteristics of the volatile gases in the packed bed of petroleum coke in the vertical shaft calciner is key to whether the volatiles can escape smoothly.This study first systematically investigated the physical parameters of petroleum coke,such as porosity and bulk density,through experimental testing methods.Secondly,an experimental device for measuring the pressure drop in the packed bed of petroleum coke was constructed.Based on this,the study explored the influence of material layer height,bed diameter ratio,particle size,and gas flow rate on the pressure drop of the bed.The research results show that as the particle size of petroleum coke increases,the bulk density decreases,and the porosity increases.When the bed diameter ratio D/dp＞20,the wall effect can be ignored.The unit pressure drop is positively correlated with the gas flow rate and negatively correlated with the particle size.The dimensionless relationship for the resistance of the accumulated coke layer is fp=6.922 × 1060ε86.519(1-ε)105.394 Re-1.047p.This study provides theoretical support for understanding the behavior of volatile gases during the calcination of petroleum coke in a vertical shaft calciner.
万方数据
维普
