CPFD Simulation for Particle Deposit Formation in Reactor Cyclone of RFCC

Hyungtae Cho, Bumjoon Cha, Jaewook Ryu, Sungwon Kim, Il Moon

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

In general, growing particle deposit in reactor cyclone duct has caused operational safety problems as well as a decrease of the cyclone efficiency. In this paper, Computational Particle Fluid Dynamics (CPFD) simulation for forecasting the behaviors of particle deposit formation in cyclone duct in Residue Fluidized Catalytic Cracking (RFCC) process is carried out. The CPFD simulation based on Multi-Phase Particle In Cell (MP-PIC) method in which particle phase is based on a stochastic particle model using the Lagrangian method and fluid phase based on an Eulerian method. We aim at analyzing the flow patterns of both particles and fluids, depending on the different sizes and shapes of the cyclone duct. As a result, we found that low speed zone existed on the duct 90° (inlet position 0) at the initial time. Some particles passing out of main flow path tend to stick to the wall of the cyclone duct due to its low speed. A set of regions where particle deposit formation takes place are set as a start point for CPFD simulation. The deposit grew up to the size of 90mm thick, and sometimes fell off due to scouring phenomenon, which results in plugging in the dipleg, leading to serious problems such as carryover.

Original languageEnglish
Title of host publicationComputer Aided Chemical Engineering
PublisherElsevier B.V.
Pages915-919
Number of pages5
DOIs
Publication statusPublished - 2012

Publication series

NameComputer Aided Chemical Engineering
Volume31
ISSN (Print)1570-7946

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Computer Science Applications

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    Cho, H., Cha, B., Ryu, J., Kim, S., & Moon, I. (2012). CPFD Simulation for Particle Deposit Formation in Reactor Cyclone of RFCC. In Computer Aided Chemical Engineering (pp. 915-919). (Computer Aided Chemical Engineering; Vol. 31). Elsevier B.V.. https://doi.org/10.1016/B978-0-444-59506-5.50014-6