Design correlations of an air-lift tube reactor

J. G. Majeed, E. Békássy-Molnár

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Air-lift reactors are important gas-liquid contactors for gas separation, purification, fermentation and waste water treatment on account of their simple construction and low energy consumption together with high mass and heat transfer rates. Apart from the improved liquid mixing, air-lift reactors have no moving elements and the power requirement comes only from the air supply. A new air-lift tube (ALT)-type reactor was investigated in laboratory and pilot scale. A study was conducted to measure the effects of liquid properties (such as viscosity and density) on the hydrodynamics of the ALT reactor. The systems used for this study were: air/water, air/sodium hydroxide solution, air/sodium citrate buffer solution and air/glycerine. Pressure drop in the reaction tube, minimum and maximum gas velocities, pressure frequency and recycle liquid velocity in the recycle tube were measured under different experimental conditions using different tube diameters for the recycle and reaction tubes. Design correlations for the above-mentioned parameters were developed by computer program in order to design an ALT reactor for gas-liquid reactions. The correlations are valid in the range 0.1-1400 m3 h-1 of the gas stream.

Original languageEnglish
Pages (from-to)101-109
Number of pages9
JournalGas Separation and Purification
Volume9
Issue number2
DOIs
Publication statusPublished - 1995

Fingerprint

Air
Gases
Liquids
Sodium
Sodium Hydroxide
Glycerol
Water treatment
Fermentation
Pressure drop
Purification
Computer program listings
Buffers
Wastewater
Energy utilization
Mass transfer
Hydrodynamics
Viscosity
Heat transfer
Water

Keywords

  • ALT reactor
  • design correlations
  • SO absorption

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Engineering(all)

Cite this

Design correlations of an air-lift tube reactor. / Majeed, J. G.; Békássy-Molnár, E.

In: Gas Separation and Purification, Vol. 9, No. 2, 1995, p. 101-109.

Research output: Contribution to journalArticle

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