Overall pressure balance and system stability in a liquid-solid circulating fluidized bed

Ying Zheng, Jing Xu Zhu

Research output: Journal PublicationArticlepeer-review

46 Citations (Scopus)

Abstract

A pressure balance analysis has been carried out, along with a dimensionless empirical correlation for the solids holdup in the riser and a semi-empirical equation for the pressure drop across the non-mechanical control valve derived in this work, to successfully predict the stable operating conditions and explain the origin of the unstable operation phenomena of the liquid-solid circulating fluidized bed. The effects of the total and auxiliary liquid velocity, the solids inventory and the unit geometry on the stable operation range are discussed. Furthermore, this work also reveals the importance of unit structure in improving the performance of the liquid-solid circulating fluidized bed systems. (C) 2000 Elsevier Science S.A. All rights reserved.

Original languageEnglish
Pages (from-to)145-153
Number of pages9
JournalChemical Engineering Journal
Volume79
Issue number2
DOIs
Publication statusPublished - Sep 2000
Externally publishedYes

Keywords

  • Circulating fluidized bed
  • Liquid-solids fluidization
  • Maximum solids circulation rate
  • Operation window
  • Pressure balance

ASJC Scopus subject areas

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

Fingerprint

Dive into the research topics of 'Overall pressure balance and system stability in a liquid-solid circulating fluidized bed'. Together they form a unique fingerprint.

Cite this