Spray generator of singlet oxygen for a chemical oxygen-iodine laser

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.

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High‐Pressure Generator of Singlet Oxygen

Jirásek

Čenský

Špalek

et al. 2013

Chem Eng & Technol

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Centrifugal spray generator of singlet oxygen for a chemical oxygen-iodine laser

et al. 2010

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Chlorine measurement in the jet singlet oxygen generator considering the effects of the droplets

Goodarzi

Saghafifar

2016

Review of Scientific Instruments

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A new method is presented to measure chlorine concentration more accurately than conventional method in exhaust gases of a jet-type singlet oxygen generator. One problem in this measurement is the existence of micrometer-sized droplets. In this article, an empirical method is reported to eliminate the effects of the droplets. Two wavelengths from a fiber coupled LED are adopted and the measurement is made on both selected wavelengths. Chlorine is measured by the two-wavelength more accurately than the one-wavelength method by eliminating the droplet term in the equations. This method is validated without the basic hydrogen peroxide injection in the reactor. In this case, a pressure meter value in the diagnostic cell is compared with the optically calculated pressure, which is obtained by the one-wavelength and the two-wavelength methods. It is found that chlorine measurement by the two-wavelength method and pressure meter is nearly the same, while the one-wavelength method has a significant error due to the droplets.

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Spray generator of singlet oxygen for a chemical oxygen-iodine laser

Cited by 4 publications

References 25 publications

High‐Pressure Generator of Singlet Oxygen

High‐Pressure Generator of Singlet Oxygen

Centrifugal spray generator of singlet oxygen for a chemical oxygen-iodine laser

Chlorine measurement in the jet singlet oxygen generator considering the effects of the droplets

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