催化裂化催化剂喷雾干燥过程CFD模型  

CFD MODELING OF SPRAY DRYING PROCESS FOR FCC CATALYST PREPARATION

作　　者：秦娅[1] 吕庐峰[1] 侯栓弟[1] Qin Ya;LüLufeng;Hou Shuandi(SINOPEC Research Institute of Petroleum Processing,Beijing 100083)

机构地区：[1]中国石化石油化工科学研究院,北京100083

出　　处：《石油炼制与化工》2019年第3期13-18,共6页Petroleum Processing and Petrochemicals

摘　　要：基于气固两相流理论,结合催化裂化催化剂喷雾干燥过程的特点,运用欧拉-拉格朗日(Eulerian-Lagrangian)模型,建立喷雾干燥塔两相流计算流体力学(CFD)模型,对制备催化裂化催化剂的喷雾干燥塔内气浆两相流动量、质量和热量传递过程进行数值模拟计算。通过模拟计算结果分析,可以得到喷雾干燥塔内流速分布、温度分布以及颗粒运行轨迹等信息,从而对塔内流场信息进行可视化。将模拟结果与中型喷雾干燥塔实验数据进行对比,结果表明二者趋势一致,出口温度误差在10%以内,证明所建模型可靠,可用于喷雾干燥过程的模拟。On the basis of gas-liquid two-phase flow theory and properties of FCC spray drying process,a Computational Fluid Dynamic(CFD)model was developed to simulate the amount of two phases flow,heat and mass transfer process in the spray dryer,and the flow velocity patterns,temperature distribution and solid particle trajectories in the spray dryer are then obtained and visualized.The simulation results are compared with the experimental data of spray drying tower in pilot plant,and the results showed that the two trends are consistent with the maximum deviation of less than 10%.The model can be used to simulate the FCC catalyst spray drying process.

关 键 词：喷雾干燥 催化裂化催化剂 欧拉-拉格朗日 数值模拟 

分 类 号：TE624.91[石油与天然气工程—油气加工工程]