针对传统提升管内固体催化剂颗粒的轴向返混现象 ,提出了一种抗滑落提升管反应器的结构形式 ,试验测量了提升管反应器气固两相流动特性、空隙率分布及固体颗粒速度径向分布。结果表明 ,抗滑落提升管反应器结构具有一定减弱固体催化剂轴向滑落的效果 ,抗滑落提升管预提升段固体颗粒浓度呈中心浓边壁稀分布 ,且催化剂颗粒速度径向分布较平缓 ,中心区域与边壁区速度之比约为 2～ 3倍。 Aiming at the axial backmixing phenomenon of conventional solid catalyst particles in the pipe, a structure of anti-slip down riser reactor was proposed. The gas-solid flow characteristics, voidage distribution and solid particle velocity path of the riser reactor were measured. To the distribution. The results show that the anti-slide riser reactor structure has the effect of reducing the axial sliding of the solid catalyst. The concentration of solid particles in the pre-lifting section of the anti-slip riser has a central dense wall with dilute wall distribution, and the radial distribution of the catalyst particle is relatively slow. The ratio of the speed of the area to the side wall area is about 2 to 3 times.