ON-Site Gas Generators
For Nitrogen (N2) & Oxygen Gas (O2)

Nitrogen generators and Oxygen generators extract the available nitrogen/oxygen in the ambient air from the other gases by applying the Pressure Swing Adsorption (PSA) technology.

 

The first step in the PSA process is compressed air passing through a combination of filters and an activated carbon tower with the purpose of removing dust, entrained oil and water.

 

The purified air is then directed to one of two adsorption vessels that are packed with carbon molecular sieves (CMS). The remaining impurities such as carbon dioxide and residual moisture are adsorbed by the CMS at the entrance of the adsorbent bed. PSA process in oxygen generators is very similar than in nitrogen generators. Just carbon molecular sieves (CMS) are replaced with molecular sieves (MS).

Typical Nitrogen

Generator equipment flow diagram

Typical Oxygen

Generator equipment flow diagram

NITROGEN Generators

The N-GEN nitrogen generators extract the available nitrogen in the ambient air

from the other gases by applying the Pressure Swing Adsorption (PSA) technology.

 

During the PSA process compressed, cleaned ambient air is led to a molecular

sieve bed, which allows the nitrogen to pass through as a product gas, but adsorbs

other gases. The sieve releases the adsorbed gases to the atmosphere, when the

outlet valve is closed and the bed pressure returns to ambient pressure.

 

Subsequently the bed will be purged with nitrogen before fresh compressed air will enter

for a new production cycle. In order to guarantee a constant product flow N-GEN nitrogen

generators use two molecular sieve beds, which alternatively switch between the

adsorption and the regeneration phase.

 

Industrial nitrogen gas can be also produced by separation of gaseous air using

membrane technology or fractional distillation of liquid air using cryogenic technology.

 

Decision on production method depend on required purity, volume and regime of consumption.

NC-GEN (compact) Nitrogen <Click here for sizing table>

Compact PSA nitrogen generators NC-GEN extract the available nitrogen in the

ambient air from the other gases by applying the Pressure Swing Adsorption (PSA)

technology.

 

During the PSA process compressed, cleaned ambient air is led to a molecular sieve bed,

which allows the nitrogen to pass through as a product gas, but adsorbs other gases.

The sieve releases the adsorbed gases to the atmosphere, when the outlet valve is

closed and the bed pressure returns to ambient pressure.

 

Subsequently the bed will be purged with nitrogen before fresh compressed air will enter

for a new production cycle. In order to guarantee a constant product flow compact PSA

nitrogen generators use two molecular sieve beds, which alternatively switch between the

adsorption and the regeneration phase.

NM-GEN (Membrane) Nitrogen <Click here for sizing table>

The membrane nitrogen generators NM-GEN extract the available nitrogen

from the compressed air. Membrane nitrogen generators use hollow fibre

membrane technology to separate nitrogen from other components in

compressed air.

 

The membrane uses the principle of selective permeation to produce

purity nitrogen.

 

Each gas has a characteristic permeation rate, which is a function of its

ability to diffuse through a membrane.

 

Oxygen is a fast gas and is selectively diffused through the

membrane wall, while nitrogen is allowed to travel along the inside of the fibre,

thus creating a nitrogen-rich product stream.

 

The oxygen-enriched gas, or permeate,

is vented from the membrane separator at atmospheric pressure.

 

Most of the slow gases and a very small amount of the fast gases continue to

travel through the fibre until they reach the end of the membrane separator, where

the product nitrogen gas is piped to the application

OXYGEN Generators

The O-GEN series oxygen generators extract the available oxygen in the

ambient air from the other gases by applying the Pressure Swing Adsorption (PSA)

technology. During the PSA process compressed, cleaned ambient air is led to a

molecular sieve bed, which allows the oxygen to pass through as a product gas,

but adsorbs other gases.

 

The sieve releases the adsorbed gases to the atmosphere, when the outlet

valve isclosed and the bed pressure returns to ambient pressure.

 

Subsequently the bed will be purged with oxygen before fresh compressed air

will enter for a new production cycle. In order to guarantee a constant product flow,

O-GEN oxygen generators use modules of two molecular sieve beds, which

alternatively switch between the adsorption and the regeneration phase.

 

Under normal operating conditions and with correct maintenance the molecular

sieve beds will have an almost indefinite lifetime.

OC-GEN (compact) Oxygen  <Click here for sizing table>

OC-GEN PSA generators have been designed for continuous separation of

oxygen from compressed air. Operation of the generator requires two columns

operated alternately. Separation takes place under pressure in the first column

while the second column regenerates with a portion of already produced

oxygen at ambient pressure.

 

The generator consists of upper and lower control block, controller, two columns

filled with adsorption material. Whole generator is closed in a compact stainless

steel cabinet. Springs in the columns make sure that the adsorption material will

not move during operation. Proven robust design enables efficient and reliable operation,

fast installation and simple maintenance.

Special assistance may be require in selecting the correct On-Site gas generator for specific applications

CALL US NOW: (Ireland) +353 1 440 3956 or (UK) +44 (0)1908 227892

© 2019 - Industrial Air & Vacuum Technologies.

Industrial Air & Vacuum Technologies Ltd is part of the Vacuum Technologies Ltd group.

Contact Numbers: IRELAND: +353 (0) 1 440 3956 - UK: +44 )1908 227892

email: info@iav.iesales@vacuum-technologies.co.uk

Company Reg: 651602

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