High-Pressure Generator of Singlet Oxygen

The generation of gaseous singlet oxygen by gas‐liquid reaction of chlorine with alkaline solution of hydrogen peroxide in spray form was studied experimentally on the originally designed device with a fast separation of reacted liquid from gas. The singlet oxygen yield, residual chlorine, and water...

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Bibliographic Details
Published in:Chemical engineering & technology 2013-10, Vol.36 (10), p.1755-1763
Main Authors: Jirasek, V, Censky, M, Spalek, O, Kodymova, J
Format: Article
Language:English
Subjects:
Centrifugal separation
Generators
High pressure
Hydrogen peroxide
Liquids
Separation
Singlet oxygen
Spray generator
Sprayers
Sprays
Utilization
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Summary:The generation of gaseous singlet oxygen by gas‐liquid reaction of chlorine with alkaline solution of hydrogen peroxide in spray form was studied experimentally on the originally designed device with a fast separation of reacted liquid from gas. The singlet oxygen yield, residual chlorine, and water vapor content in gas were measured under different experimental conditions of the centrifugal spray singlet oxygen generator (CSSOG) using nitrogen as a dilution gas. A characteristic feature of the CSSOG is a high utilization of the chemicals and production of singlet oxygen at a very high total pressure even near the atmospheric pressure. This generator developed originally for driving a chemical oxygen‐iodine laser (COIL) could be employed also as an efficient singlet oxygen source in material science, chemical synthesis, and others. A centrifugal spray generator of singlet oxygen was optimized for operation with nitrogen buffer gas and high total pressure. This generator is able to successfully operate at much higher pressure compared to other types. Due to the very high hydrogen peroxide utilization the consumption of input liquid chemicals is substantially reduced.
ISSN:0930-7516
1521-4125
DOI:10.1002/ceat.201300196