Comparison of Economics of Various Ozone Generation Systems

Merz, E.; Gaia, F.

doi:10.1080/01919519008552231

Cited by 6 publications

(6 citation statements)

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“…The effect of current and voltage on efficiency as given in equation (4) gives some interesting insights to alternatives in the operation of electrolytic ozone generation. The electrochemical route requires a higher free energy barrier since the starting raw material is water, compared to oxygen in the CD process.…”

Section: Energy Efficiencymentioning

confidence: 99%

“…via aeration, and with efficient mass-transfer, then there should be a substantial gain in energy efficiency. The cell voltage may increase with reaction (5), but the 1/3 reduction in current per ozone produced can lead to an overall decrease in energy consumption, as shown in equation (4). The concept of areated anode therefore warrants further investigation.…”

Section: Energy Efficiencymentioning

confidence: 99%

“…This process can produce NO x as a by-product unless pure oxygen is supplied, which will require additional energy. The energy required to purify air to oxygen is at least two times that of making ozone from oxygen [4].…”

Section: Introductionmentioning

confidence: 99%

“…The energy required to purify air to oxygen is at least two times that of making ozone from oxygen. 4 The alternative route of ozone generation via water electrolysis is attractive since NO x is not generated and only a low voltage source is needed. If dissolved ozone is the desired product, then the water electrolysis route is more direct and effective.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of ozone from air via a polymer-electrolyte-membrane cell with a doped tin oxide anode

2006

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Section: Energy Efficiencymentioning

confidence: 99%

Section: Energy Efficiencymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis of ozone from air via a polymer-electrolyte-membrane cell with a doped tin oxide anode

2006

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“…The energy required to purify air to oxygen is at least two times that of making ozone from oxygen. 3 An alternative generation method is via UV radiation at 185 nm. However, the generated ozone concentration is lower than that of CCD production and more electrical energy is consumed.…”

mentioning

confidence: 99%

Electrochemical Generation of Ozone in a Membrane Electrode Assembly Cell with Convective Flow

Cui¹,

Wang²,

Wang³

et al. 2009

J. Electrochem. Soc.

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Highly efficient electrochemical generation of ozone on doped tin dioxide anodes was reported recently. Here, we report the scale up of such ozone generation on a membrane electrode assembly (MEA) made with 8×13cm –doped tin dioxide anode. The effects of water flow rate, operating voltage, and current on dissolved ozone concentration, ozone production, current efficiency, and energy efficiency are reported. Ozone production and current efficiency increased with water flow. Operating with a single MEA, 218mg∕h of dissolved ozone was produced at an applied current of 6A (current density=57.6mA∕cm2 ). With four MEAs operated in a stack, the dissolved ozone production increased to 1.1g∕h at a total current of 20.6A (current density=49.5mA∕cm2 ) and individual cell voltage of 3.3V . For the multiple MEA operation, the highest current efficiency was 21.7% based alone on dissolved ozone generation. The lowest energy consumption achieved was 42kWh∕kg (normalO3) at 643mg ozone per hour at current of 10.1A (current density=24.3mA∕cm2 ) and water flow of 5.4L∕min (linear velocity=7.03cm∕s ).

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Ozone

Wojtowicz¹

2000

Kirk-Othmer Encyclopedia of Chemical Technology

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This article discusses solubility, absorptivity, explosivity, as well as thermodynamic, spectral, structural, and other physical properties of ozone in the gaseous, liquid, and solid states; it reviews both organic and inorganic chemistry and offers various analytical methods for determining ozone in the solution and the gas phase. It examines, from a mechanistic viewpoint, not only the thermal and photochemical decomposition of gaseous and aqueous ozone, but also its generation, including gas preparation, electrical requirements and characteristics, efficiency, costs, and design. In addition, the article investigates atmospheric ozone formation in the troposphere and the stratosphere from the standpoint of photochemical smog, surveying the effect of natural and anthropogenic contaminants on ozone decomposition. Finally, the article considers numerous health and safety issues, including such topics as the depletion of ozone layer, environmental and human exposure, and ozone disinfection by‐products. Ozone can be used in drinking water, high purity water for bottling and canning plants, as well as the pharmaceutical and electronics industry; it can be used to bleach textiles and natural products, to control industrial wastewater pollution and sewage, to disinfect wastewater as well as water for large aquariums and shrimp hatcheries, to treat process water, swimming pools, and spas; it can also be used for pulp bleaching, organic synthesis, medical applications, and food preservation. Vol. 17, pp. 953–994, 168 refs. to May 1995.

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Comparison of Economics of Various Ozone Generation Systems

Cited by 6 publications

References 1 publication

Synthesis of ozone from air via a polymer-electrolyte-membrane cell with a doped tin oxide anode

Synthesis of ozone from air via a polymer-electrolyte-membrane cell with a doped tin oxide anode

Electrochemical Generation of Ozone in a Membrane Electrode Assembly Cell with Convective Flow

Ozone

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