Analysis of the Overall Pressure Balance around a High-Density Circulating Fluidized Bed

D. Bai, A. S. Issangya, J. X. Zhu, J. R. Grace

Research output: Journal PublicationArticlepeer-review

46 Citations (Scopus)

Abstract

A steady-state model is presented for predicting the flow behavior of a novel high-density circulating fluidized-bed coupled dual-loop system. The model allows the maximum achievable solids flux for given steady-state operating conditions to be predicted. The effects of superficial gas velocity, solids inventory, particle diameter and density, and the diameters of both risers and both downcomers as well as the position of the solids control valve are all predicted. Predictions are shown to be in good agreement with experimental values for solids circulation rates as high as 420 kg/m2 s for FCC particles in a dual-loop system. Parametric studies illustrate the usefulness of the approach for optimizing the operating conditions of complex gas-solid systems.

Original languageEnglish
Pages (from-to)3898-3903
Number of pages6
JournalIndustrial & Engineering Chemistry Research
Volume36
Issue number9
DOIs
Publication statusPublished - Sep 1997
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry (all)
  • Chemical Engineering (all)
  • Industrial and Manufacturing Engineering

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