Computational fluid dynamics simulation of system hydrodynamics in a riser of stage circulating fluidized bed reactor

作     者：Phupanit, Jakkrapong Soanuch, Chaiwat Korkerd, Krittin Piumsomboon, Pornpote Chalermsinsuwan, Benjapon 

作者机构：Chulalongkorn Univ Fac Sci Program Petrochem & Polymer Sci Bangkok Thailand Chulalongkorn Univ Fac Sci Dept Chem Technol Fuels Res Ctr 254 Phayathai Rd Bangkok 10330 Thailand Chulalongkorn Univ Ctr Excellence Petrochem & Mat Technol Bangkok Thailand Chulalongkorn Univ Adv Computat Fluid Dynam Res Unit Bangkok Thailand 

出 版 物：《ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING》 (亚太化学工程杂志)

年 卷 期：2019年第14卷第1期

页      面：e2277-e2277页

核心收录：

学科分类：0817[工学-化学工程与技术] 08[工学] 

基　　金：Program in Petrochemistry and Polymer Science, Faculty of Science, Chulalongkorn University Thailand Research Fund [RSA5980052] Ratchadapisek Sompoch Endowment Fund (2018) Chulalongkorn University [CU-GR_61-032_23_010] 

主　　题：computational fluid dynamics simulation stage circulating fluidized bed reactor statistical experimental design system hydrodynamics system mixing 

摘      要：The riser of conventional and stage circulating fluidized bed reactors were simulated using computational fluid dynamics. The objective was to examine the design parameter effects using a 2(3) statistical experimental design method. The results showed that number of reactor stages had the highest effect on the standard deviation of the solid volume fraction (SVF), the average SVF, and standard deviation of gas temperature in a horizontal direction. In addition, the reactor wall temperature had the highest effect on the average holding time of catalysts. Increasing the number of reactor stages could reduce the back-mixing and increase the system turbulence. The average vertical and horizontal solid particle velocities in the reactor stage region were higher than in the other regions. At the reactor stage region, peaks in the gas temperature were observed. The advantages of a stage reactor were confirmed to be applied in all the operating condition cases, independent of the solid particle mass flux.