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Medical Application(Cylender: 47 Liters and 10 liters)
Metals manufacturing uses for oxygen
The largest user of oxygen is the steel industry. Modern steelmaking relies heavly on the use of
oxygen to enrich air and increase combution
temperatures in blast furnaces and open hearth furnaces
as well as to replace coke with other combustible materials.
During the steel making
carbon combines with oxygen to form carbon oxides, which leave as gases. Oxygen is fed into the
steel bath through a
special lance. Oxygen is used to allow greater use of scrap metal in electric arc
furnaces. Large quantities of oxygen
are also used to make
other metals, such as copper, lead, and
Oxygen enrichment of comustion air, or oxygen injection through lances, is used to an increasing
extent in cupola fumaces, open-hearth fumaces,
smelters for glass and mineral wool, and lime and
coment kilns, to enhance their capacity and
reduce energy requirments. Smelting times and energy
consumption can also be reduced by special oxy-oil or oxy-gas burnaers in electro-steel
induction smelters for aluminum. A high thermal
efficiency is achived by these "Oxyfuel" burners,
which mix fuel and oxygen at
the tip of the burner. As a result, rapid combustion occurs at
Chemicals, pharmaceuticals and petroleum uses
* Oxygen is used as a raw material in many oxidaion process, including the manufacture of ethylene
oxide, propylene oxide, synthesis
partial oxidation of a wide range of hydrocarbons,
ethylene dichloride, hydrogen peroxide, nitric acid, vinyl chloride and phthalic acid.
* Very large quantities of oxygen are used in coal gasification to generate a synthesis gas that can be
used as a chemical feedstock or precursor
easily-transported and easily-used fules.
* Oxygen is used to enrich the air feed to catalytic cracking regenerators, which increases capacity
the units.it is used in sulfur recovery untis to achieve similar benefits.
* Oxygen is also used to regenerate catalysts in refineries.
Oxygen is used to achieve more complete combustion and destructionh of hazardous and waste
materieals in incinerators.
Pulp and paper manufacturing uses
Oxygen is increasingly important as a bleaching chemical.In the manufacture of high-quality bleached
pulp,the lignin in the pulp
in a bleaching process.Chlorine has been used for this
purpose but new processes using oxygen reduce water pollution.Oxygen plus caustic
hypochlorite and chlorien 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.
Health care uses
* In medicine,oxygen is used during surgery,intensive care treatment,inhalation therapy,etc.High
statndars of purity and handling must be
* Oxygen is typically supplied to hospitals though bulk liquid delivereies,then distributed to usage
points.It assists with respiratory problems,
saving lives and increasing patient comfort.
Small portable air separation units are gaining wide use in homes. Compact non-cryogenic units,
typically producing 93% purity medical grade
are being utilized in small and/orremote
hospitals where demand is high enough to make cylinder deliveries a logistical problem but where
deliveries are unavailable or very costly.
Food packing & Industrial Application(Cylinder:47 liters)
Metals manufacturing uses for nitrogen
Nitrogen is used to treat the melt in the manufacture of steel and other metals and as a shield gas in
the heat treatment of
iron, steel and other
metals. It is also used as a process gas, together with other
gases for reduction of carbonization and nitriding.
"Flash" or "fins" on cast metal can be removed by cooling with liquid nitrogen, making them brittle,
allowing then to be broken off by mechanical action.
Chemicals, pharmaceuticals and petroleum uses
Refineries, petrochemical plants and marine tankers use nitrogen to pureg equipment, tanks and
pipelines of dangerous vapors and gases
example, after completing a pipline transfor operation
or ending a production run) and to maintain an inert and protective atmosphere in tanks
Cold nitrogen gas is used to cool reactors filled with catalyst during
maintenance work. The cooling time can be
Cooling reactors (and the materials inside) to low temperature allows better control of side-reactions
in complex reactions in the pharmaceutical
Liquid nitrogen is often used to provede the
nessary refrigeration as it can produce rapid temperature reduction and easily maintain the
temperatures. Reactore cooling and temperature control system usually rmploy a
circulating heat transfer fluid.
Rubber and plastics industry uses
Materials become hard and brittle when cooled by to very low temperatures. This property permits
the removal of "flash" or "fins" on cast
and rubber. The castings are cooled by liquid
nitrogen and the flash broken off by mechanical action.
Food and beverages
The intense cold in liquid nitrogen allows very rapid freezing of food items, resulting in minimal cell
damage from ice crystals and improved
appearance, taste and texture. Well-designed cryogenic
tunnel and spiral freezers efficiently capture refrigeration from liquid vaporization
and from cold
it flows through the freezer.
When substances such as vegetable oil and wines are stored, the inert properties of nitrogen can be
used to protect against loss of quality by
oxidation by expelling
any air entrained in the liquid
("sparging") and protecting liquids in storage tanks by filling the vapor space("blaneting").
Nitrogen (and nitrogen mixed with CO2 and oxygen) is used in transport trucks in Modified
Atmosphere Packaging(MAP) to exted the shelf life of packaged foods by
mold, insect infestation and moisture migration.