Oxygen nitrogen plants are industrial systems used for
production of artificial oxygen and nitrogen. The plants are used in a large
number of industries ranging from metal processing to the waste water
treatment. Oxygen is vital for sustaining life on the planet earth and is
valued for its oxidative properties and it is characterized by its high
reactivity because of which it easily combines with any element to form
compounds. The gas is odorless, tasteless and colorless. It is said to be the
third most abundant element in the universe after hydrogen and helium.
Moreover, it constitutes 21 per cent of the atmosphere of the planet and makes
up around half of the total mass of the earth.
Moreover, oxygen is a reactive gas which is found in the
atmosphere as well as the core of the earth. On the other hand, nitrogen is
found in very small quantities in the core of the earth but constitutes 74% of
the earth’s atmosphere. However, both the gases are widely used in the industrial processes. Liquid oxygen nitrogen plants are fabricated using two technologies—pressure swing adsorption
(PSA) and cryogenic distillation. The former is used for generating oxygen and
nitrogen on a small scale with low purity while the later is used for producing
oxygen and nitrogen on a large scale with high purity. However, the industries
prefer using cryogenic oxygen nitrogen plants as they are more efficient and
can produce industrial gases with purity specified by the industries. If you
are interested in buying a plant, you can find a reputed oxygen plant supplier
knowing for offering the best oxygen generating equipment in the market.
Liquid oxygen nitrogen plants are based on the process cycle
of Linde & Claude, which was pioneered in 1930. The plants are manufactured
using an air compressor, molecular sieve purification system, expander and air
separation column. Oxygen and nitrogen are generated by the liquefaction of
atmospheric air in the air separation unit. The air is entered into the
molecular sieve purification system where the impurities such as carbon
dioxide, moisture and hydrocarbons are removed. After that, the air is moved
into the heat exchangers where it is cooled to cryogenic temperatures. The air
is separated into nitrogen at the top of the column and crude form of oxygen at
the bottom. Oxygen is collected and
moved into the low pressure distillation column where it is distilled until it
meets the commercial specifications.
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