石油炼制与化工 ›› 2014, Vol. 45 ›› Issue (1): 47-50.

• 基础研究 • 上一篇    下一篇

FCC环管进料喷嘴对提升管中气固流动结构的影响

李志超1,王璐2,杨朝合3,李春义3   

  1. 1. 中国石油工程建设公司华东设计分公司
      2. 山东海科化工集团有限公司
      3. 中国石油大学(华东)
  • 收稿日期:2013-05-17 修回日期:2013-08-18 出版日期:2014-01-12 发布日期:2013-12-23
  • 通讯作者: 李春义 E-mail:chyli_upc@126.com
  • 基金资助:

    国家973计划资助项目

EFFECT OF RING-FEEDER FORM OF FCC RISER ON GAS-SOLIDS FLOW STRUCTURE

  • Received:2013-05-17 Revised:2013-08-18 Online:2014-01-12 Published:2013-12-23

摘要: 在循环流化床冷模实验装置上对安装2种环管喷嘴提升管的气固流动结构进行研究,根据气体和颗粒的分布情况,计算了使用2种喷嘴情况下的提升管相对气固接触效率(RCE)和截面平均气固接触效率(CCE),并进行了比较。结果表明:使用喷嘴B时,提升管的颗粒浓度、气固接触效率均优于使用喷嘴A时,但随着提升管高度的增加,使用2种喷嘴时的情况趋于一致。

Abstract: The gas-solid flow structure in FCC riser was studied in detail in a CFB cold model unit using ring-feeders with different form. Based on the gas and solids distributions, relative gas-solid contact efficiency (RCE) and cross-sectional gas-solid contact efficiency (CCE) were calculated and compared. Experimental results indicate that solid concentration and gas-solid contact efficiency could be different in riser with different form of feeder. However, the effect of the feeder form on the gas-solid flow structure is diminished along with the increase of riser height.