O2 APPLICATION

Oxygen (O2) is an active, life-sustaining component of the atmosphere; making up 20.94%. It is colorless, odorless and tasteless. Oxygen is commonly used, with or instead of air, to increase the amount of oxygen available for combustion or biological activity. This increases reaction rates and leads to greater throughput in existing equipment and smaller sizes for new equipment.

Oxygen has numerous uses in steelmaking and other metals refining and fabrication processes, in chemicals, pharmaceuticals, petroleum processing, glass and ceramic manufacture, and pulp and paper manufacture. It is used for environmental protection in municipal and industrial effluent treatment plants and facilities.

Oxygen also has numerous uses in healthcare, both in hospitals, outpatient treatment centers and home use. For some uses, such as effluent treatment and pulp and paper bleaching, oxygen is converted to ozone (O3), an even more reactive form, to enhance the rate of reaction and to ensure the fullest possible oxidation of undesired compounds.

Aquaculture – Fish Farming

In recent years, fish farming has turned into high density farming practice using ponds, large scale tanks etc. Oxygen is essential in all modern fish farming. Fish need oxygen to live and grow, when fish grow the density of fish in the ponds increases, while the oxygen saturation level in the water decreases and the loss of fish will be high.

Adding oxygen into water helps the fish farming industry to maximise production by enhancing water treatment and recycling processes. Pure oxygen dosed in correct way ensures faster growths rates, less stress and diseases and higher quality.

Glass Manufacturing

Oxygen in glass industry plays very important role and is typically used to enhance combustion. The benefits are fuel saving due to improved furnace efficiency, increased flame temperature, reduced energy cost, reduced pollutants, improved glass quality and etc. These benefits create an platform for production increase which is the most common motivation for using oxygen.

Gold Mining

Adding oxygen to the air in the gas desulfurizing process results in a number of benefits, e.g. increased plant capacity, more flexibility, and improved conversion of ammonia. By using oxygen to convert mineral sulphides to sulphates and processing them, gold yield can be more than doubled over standard ore gravity separation and concentration. By sparging 94-95% oxygen into a thickened flotation concentrate (which has been heated under pressure) an oxidized slurry results. Not only are sulphides converted to sulphates by the O2, but arsenic is converted to ferric arsenate.

Medical

Beside basic respiratory support, benefits of medical oxygen can make feeling of well-being and freshness, increase partial pressure of oxygen in blood, muscles and muscle tissue, improve levels of concentration as well. Normally, oxygen supply of healthcare including central oxygen supply to hospitals, nursery & retirement homes, field hospitals, veterinary facility.

Hyperbaric oxygen therapy involves providing the body with extra oxygen. ‘Hyper’ means increased and ‘baric’ relates to pressure. HBOT has been used around the world for over 50 years in the prevention and improvement of debilitating conditions as well as in the enhancement of overall health.

Metallurgy

Oxygen gas is used in shaft furnaces melting lead, tin, zinc, copper and rock wool. The most important benefit is the increase of output with a simultaneous coke reduction. Meanwhile, in the waste disposal and recycling industry, the use of pure oxygen in various high-temperature operations increases the process efficiency, saves energy and lowers pollutant emissions.

Metal Brazing & Cutting

Pure oxygen, instead of air, is used to increase the flame temperature to allow localized melting of the workpiece material. A common propane/air flame burns at about 2,250 K (1,980 °C; 3,590 °F), a propane/oxygen flame burns at about 2,526 K (2,253 °C; 4,087 °F).

In oxy-fuel brazing, a brazing torch is used to weld metals. Brazing metal results when two pieces are heated to a temperature that produces a shared pool of molten metal. The molten pool is generally supplied with additional metal called filler. Filler material depends upon the metals to be welded.

In oxy-fuel cutting, a torch is used to heat metal to its kindling temperature. A stream of oxygen is then trained on the metal, burning it into a metal oxide that flows out of the kerf as slag.

Ozone Generation

Oxygen (O2) and Ozone (O3) are gaining wide acceptance in water treatment. There has been rapid development in both the methods of reliably producing low cost oxygen and ozone and applying them to water treatment problems.

By using oxygen as feed gas instead of air, the ozone generator's efficiency will significantly increase and the risk of HNO3 formation will be reduced. Application of ozone in water treatment includes the destruction or removal of: complex organic molecules, cyanides and phenols from chemical waste, etc. Ozone is also used extensively in industry in oxidation processes and for disinfection purposes.

Pulp & Paper Manufacturing

Oxygen is increasingly important as a bleaching chemical. In the manufacture of high-quality bleached pulp, the lignin in the pulp must be removed in a bleaching process. Chlorine has been used for this purpose but new processes using oxygen reduce water pollution. Oxygen plus caustic soda can replace hypochlorite and chlorine dioxide in the bleaching process, resulting in lower costs.

In a chemical pulp mill, oxygen added to the combustion air increases the production capacity of the soda recovery boiler and the lime-reburning kiln. The use of oxygen in black liquor oxidation reduces the discharge of sulfur pollutants into the atmosphere.

Veterinarians

As an essential veterinary facility, the central oxygen supply system is designed with monitoring features allowing backup and the ability to trigger immediate restoration in the unlikely event of a system failure.

Oxygen is used for stabilizing animals both during and after surgical procedures. Hyperbaric Oxygen Therapy (HBOT) is a new method that veterinarians are using today to treat wounded or chronically ill animals. This exciting treatment accelerates normal post-operative healing and increases the benefits of many antibiotics by improving their tissue penetration.

Water Treatment

There has been rapid development in both the methods of reliably producing low cost oxygen and ozone and applying them to wastewater treatment problems.

Lack of oxygen can cause inadequate treatment, as well as offensive odours. Injecting oxygen into treatment plants, improve sludge settling, lower sludge load, and improve treatment capacity.

The aeration process allows bacteria and waste to be put into contact. Efficient oxygenation is essential to the success of aerobic biological treatment. In difficult cases, particularly with industrial effluents, pure oxygen boosting is a very efficient solution.