Numerical Simulation of Optimization of Mixing Tank for Residue Upgrading Reactor  

作　　者：Bao Di Tang Xiaojin Zhu Zhenxing 

机构地区：[1]SINOPEC Research Institute of Petroleum Processing

出　　处：《China Petroleum Processing & Petrochemical Technology》2019年第2期110-117,共8页中国炼油与石油化工（英文版）

基　　金：supported by the Major Science and Technology Project of SINOPEC (ST18012-4)

摘　　要：For studying the mixing tank for RMAC (residue upgrading to maximize asphaltene conversion) reactor, the CFD simulation was employed to simulate the flow field in the mixing tank. The dispersion of liquid-liquid phase in the mixing tank and the power of turbines were investigated. The simulation results showed that compared with the original doublelayer propeller, the A310-swept double-layer impellers could reduce the liquid heterogeneous degree by 27.5% and the stirring power by 3.25%. The influence of rotation speed on the heterogeneous degree and stirring power was investigated, and the critical rotation speed was obtained. The optimal rotation speed was determined to be 240 r/min. The heterogeneous degree was 0.19 and the minimum stirring power was 10.89 W. By optimizing the impeller selection and process conditions, the overall performance of the mixing tank could be significantly improved.For studying the mixing tank for RMAC(residue upgrading to maximize asphaltene conversion)reactor,the CFD simulation was employed to simulate the flow field in the mixing tank.The dispersion of liquid-liquid phase in the mixing tank and the power of turbines were investigated.The simulation results showed that compared with the original doublelayer propeller,the A310-swept double-layer impellers could reduce the liquid heterogeneous degree by 27.5% and the stirring power by 3.25%.The influence of rotation speed on the heterogeneous degree and stirring power was investigated,and the critical rotation speed was obtained.The optimal rotation speed was determined to be 240 r/min.The heterogeneous degree was 0.19 and the minimum stirring power was 10.89 W.By optimizing the impeller selection and process conditions,the overall performance of the mixing tank could be significantly improved.

关 键 词：LIQUID-LIQUID MIXING IMPELLERS numerical simulation critical rotation speed 

分 类 号：TE[石油与天然气工程]