PSA Nitrogen Generator Technology

PSANitrogen Gas Generation Systems Presented by:South-Tek Systems“Manufacturers / Designers of Nitrogen Generating Equipment” : 

PSANitrogen Gas Generation Systems Presented by:South-Tek Systems“Manufacturers / Designers of Nitrogen Generating Equipment” REV 111206 Copyrighted All Rights Reserved - 2006

Slide 2: 

A Nitrogen Generator produces Nitrogen gas “from thin air”, eliminating the need to purchase N2 in liquid form in order to vent off the gas. This video shows why and how this can be done using PSA Nitrogen Generation technology.

Slide 3: 

Non-cryogenic Nitrogen Production Technologies Two distinct Air Separation Technologies Pressure Swing Adsorption (PSA) Membrane Both technologies mechanically separate Nitrogen Molecules from the air.

Slide 4: 

Why can you separate Nitrogen from the air? Molecule Size Relationship Nitrogen (N2) molecules are the size of beach balls Oxygen (O2) molecules are the size of pin heads

AIR : 

78% Nitrogen - N2 20.9% Oxygen - O2 1 % Argon - Ar Balance CO2, CO, rare gases CO O2 N2 Ar CO2 Other AIR

Slide 6: 

How can you separate N2 from the other molecules? Two ways of mechanically separating N2 and O2 molecules: Adsorption (PSA) – the act of attracting or isolating one of the molecules from the others using a material. Membrane – the act of separation utilizing a sieve.

N2 PSANitrogen Gas Generation Technology : 

N2 PSANitrogen Gas Generation Technology PSA = “Pressure Swing Adsorption”

What is Pressure Swing Adsorption (PSA) ? : 

What is Pressure Swing Adsorption (PSA) ? A technology used to generate non-cryogenic (gaseous) Nitrogen on-site Carbon Molecular Sieve (CMS) adsorbs oxygen and water vapor molecules under high pressure - while allowing Nitrogen to pass through Skid-mounted units can supply up to 75,000 SCFH of continuous Nitrogen product

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Sieve Bed Pressure Vessels Filled with Carbon Molecular Sieve CMS

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O2 O2 O2 CO2 CO O2 O2 O2 O2 O2 N2 N2 N2 N2 N2 N2 N2 N2 N2 N2 N2 N2 N2 Ar Ar Sieve Bed Pressurized with Air Ar C.M.S.

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Ar O2 O2 CO2 CO O2 O2 N2 N2 N2 N2 N2 N2 N2 Ar O2 O2 O2, CO2, CO and othermolecules captured in CMS N2

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O2 O2 O2 O2 O2 CO2 CO O2 O2 N2 N2 N2 N2 N2 N2 N2 N2 Ar O2 O2 N2 Ar N2 molecules are drawnoff into N2 receiving tank

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O2 O2 O2 O2 CO2 CO O2 O2, CO2, CO and other molecules are held inside CMS O2 O2 CO2

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O2 O2 CO2 CO O2 O2 O2 O2, CO2, CO and other molecules are flushed from CMS by depressurizing the sieve bed O2 O2 O2 O2

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CMS flushed and cleansed, ready for new air

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N2 PSA Gas Generator Technology Tank #2 Tank #1 N2 PRODUCTION VESSELS N2 CMS CMS

Small PSA Nitrogen Generator Systems : 

Small PSA Nitrogen Generator Systems

Large PSA Nitrogen Systems : 

Large PSA Nitrogen Systems

N2 Gas GenerationTechnologies Available : 

N2 Gas GenerationTechnologies Available Membrane Uses more compressed air Max inlet air pressure is 225 psig Lower pressure drop (25 psig) Lower purity available (max 99.5%) Membrane lasts 5 to 7 years Fewer moving parts PSA Uses less compressed air Max inlet air pressure is 150 psig Higher pressure drop 40 psig Higher purity available (max 99.999%) Sieve beds last forever More moving parts with switching valves

Slide 20: 

Cost effective; no more long term gas contracts Unlimited supply of N2 Produce the purity, volume, and flow rate you need at the point of use. Minimal maintenance Mechanical operation Operating Cost = compressor electricity cost No high pressure tanks to deal with Why use a Gas Generator?

Slide 21: 

“STS has your Nitrogen Generation Solution…” 2940 Orville Wright Way Wilmington, NC 28405 tel: (910) 332-4173, fax: (910) 332-4178 Email: info@southteksystems.com Website: www.southteksystems.com