化工学报2016，Vol.67Issue(8)：3191-3201,11.DOI:10.11949/j.issn.0438-1157.20160438
FCC提升管反应器中终止剂注入对裂化反应的影响
Effect of terminator injection on catalytic cracking reactions in FCC riser
摘要
Abstract
The flow, heat transfer and reaction behaviors in the fluid catalytic cracking (FCC) riser before and after the injection of terminator were simulated by the computational fluid dynamics (CFD) method. Distributions of velocity, solid catalyst volume fraction, temperature, and species concentration in FCC riser were obtained after the injection of terminator. Besides, the action zone of the terminator and the effect on cracking reactions were analyzed with different mass fraction and teeming height of the terminator. The simulation results showed that with injection of the terminator, the velocity of oil gas was increased but volume fraction and temperature of the catalyst as well as temperature of the oil gas were decreased. The change in flow and the heat transfer caused the reduction in degree of the cracking reactions and the secondary reaction of oil gas in the riser, which resulted in a higher yield of gasoline and lower yields of dry gas, LPG and coke. The action zone and the effect on cracking reaction varied with different mass fraction and teeming height of the terminator, which should be evaluated by actual process conditions.关键词
提升管/催化裂化/终止剂/计算流体力学Key words
riser/fluid catalytic cracking/terminator/computational fluid dynamics分类
化学化工引用本文复制引用
王敏,吴迎亚,蓝兴英,高金森..FCC提升管反应器中终止剂注入对裂化反应的影响[J].化工学报,2016,67(8):3191-3201,11.基金项目
国家重点基础研究发展计划项目（2012CB215003）。 （）
