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PCM Engineering Services Ltd

| E N G I N E E R I N G S O L U T I O N S

Nitrogen Generation

NITROGEN GENERATION

More companies are becoming aware of the

huge savings being made from generating

nitrogen over expensive bottled and bulk stored

liquid nitrogen. PCM offers two technologies:

HOLLOW FIBRE MEMBRANE

Hollow fibre membrane technology – used

for the generation of nitrogen or oxygen

enriched gas from compressed air. Membrane

technology is efficient for high volume lower

purity applications. The basis of the technology

is thousands of hollow fibres. The walls of these

fibres selectively diffuse oxygen.

PCM offers nitrogen generator solutions that

produce up to 99.5% pure, commercially sterile

nitrogen at dew points to -50°C from any

compressed air supply.

With flow rates up

to 11,400 scfh, this

technology eliminates

the need for costly

gas cylinders and

liquid storage tanks.

A complete package

with pre-filters, carbon

filter and O2 analyser

is available as standard.

We can eliminate

unexpected shutdowns

due to ‘bad’ or empty

cylinders and offer a

safe and reliable supply.

We offer a design, installation and maintenance

package unique to your application. This

technology is becoming increasingly used

for industrial fire suppression, high pressure

product testing, plasma and laser cutters, food

packaging and chemical blanketing.

PSA TECHNOLOGY

PCM offers the know-how in the design and

manufacturing of nitrogen generation plants by

Pressure Swing Adsorption (PSA).

We are in the forefront of this technology and

have the flexibility to provide the right packages

to meet all customer requirements.

The PSA systems produce nitrogen to capacities

of up to 99.999% and ideally suited for the

higher purity, high output demands.

How it works: These are PSA (Pressure Swing

Adsorption) nitrogen generating systems. Each

unit has two adsorber beds filled with a carbon

molecular sieve (CMS). Compressed air enters

one end of a bed. While the smaller oxygen

molecules are adsorbed by the CMS, the larger

nitrogen molecules pass through the sieve and

are stored. Once the tube is saturated with

oxygen, the first adsorber releases the gas, and

the second adsorber starts the process over

again.