ABSORPTION OF SO2 AND H2S IN SMALL-SCALE VENTURI SCRUBBERS
- 1 March 1987
- journal article
- research article
- Published by Taylor & Francis in Chemical Engineering Communications
- Vol. 51 (1-6) , 291-306
- https://doi.org/10.1080/00986448708911849
Abstract
Small-scale venturi scrubbers having geometries of typical large-scale units were constructed from glass and were operated in a laboratory system. Carrier gas streams consisting of air or nitrogen and up to 30% (by volume) CO2 were mixed with SO2 or H2S to give SO2 or H2S concentrations in the range of 1890–4400 ppm. These gas mixtures were then scrubbed in the Venturis using various injected liquids (plain water, NaOH solutions, NH4OH solutions, and NaOH/NaHCO3 solutions) at L/G ratios of 0.0004–0.0040 m3 liquid per standard (1 atm, 60°F)m3 of gas (3–30 gallons liquid per 1000 standard ft3 of gas). Absorption percentages for SO2 and H2S were determined as functions of the L/G ratio, initial liquid pH, and liquid composition. The effects of venturi throat length, gas velocity, and the presence of CO2 in the gas stream were also determined.Keywords
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