Effect of Distributor Structures on the Hydrodynamic Performance of Annulus-Lifted Gas-Solid Air Loop Reactors
1. College of Chemical Engineering and Environment, China University of Petroleum, Beijing 102249, China;
2. China Huanqiu Contracting and Engineering Corporation, Beijing 100029, China
Abstract At present, air loop reactors (ALR) are mainly limited to gas-liquid systems or gas-liquid-solid systems. As the theory of gas-solid reaction systems is becoming more and more mature, higher requirements on gas-solid air loop reactors are raised for gas-solid contact efficiency and other properties. Three types of distributor structures in annulus-lift gas-solid ALR were researched by numerical simulation methods, and the influence of the distributor structures was discussed on the hydrodynamic performance of the reactor. It was found that the distributor structures had a great influence on the particle distribution and circulation movement in the draft region, and had little effect on the flow in the annulus. Under the same conditions, the density distribution of the bed in reactor II was the most uniform, which indicated that its gas distribution effect was the best. And the particle circulation mass flow rate was the largest, indicating that its hydrodynamic performance was the best among three types of ALR.
KONG Shuangzhu1,NIU Zhanchuan1,2 et al. Effect of Distributor Structures on the Hydrodynamic Performance of Annulus-Lifted Gas-Solid Air Loop Reactors[J]. 化学反应工程与工艺, 2020, 36(2): 127-135.
KONG Shuangzhu1,NIU Zhanchuan1,2 et al. Effect of Distributor Structures on the Hydrodynamic Performance of Annulus-Lifted Gas-Solid Air Loop Reactors[J]. 化学反应工程与工艺, 2020, 36(2): 127-135.
