Behavior of venturi scrubbers as chemical reactors

Journal Article · Fri Dec 01 04:00:00 EST 1995 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie00039a015· OSTI ID:183086

Hills, J H ^[1]

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1. Nottingham Univ. (United Kingdom). Dept. of Chemical Engineering

Venturi scrubbers have been used for a long time as devices to remove particulates from gas streams. However, the large surface area of the drops also makes them effective gas-liquid reactors, particularly for scrubbing pollutant gases from an inert stream, and this aspect has been much less studied. Solutions to the equation of absorption with first-order chemical reaction in spherical polar coordinates are presented in graphical form as plots of dimensionless mass absorbed against dimensionless time, with dimensionless rate constant, gas volume, and gas-side mass-transfer coefficient as parameters. An asymptotic solution which combines the effects of finite gas volume and gas-side mass-transfer resistance is derived and its range of validity assessed; an extension to the case of infinite reaction rate is also proposed. The results are applied to the design of venturi scrubbers and compared with the experimental data of Ravindram and Pyla. Serious discrepancies are apparent, and possible reasons for these are discussed.

• Sponsoring Organization: USDOE
• OSTI ID: 183086
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 12 Vol. 34; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ABSORPTION
CHEMICAL REACTORS
DESIGN
DROPLETS
GASES
HYDROGEN SULFIDES
MATHEMATICAL MODELS
SCRUBBERS
SEPARATION PROCESSES
SULFUR DIOXIDE