Pressure Swing Adsorption, Nitrogen Generators, Carbon Molecular Sieve

PSA Nitrogen Generators

This simple, turnkey Pressure Swing Adsorption (PSA) type Nitrogen Generator provides a cost-effective means for on-site gas generation. It is based on using the latest PSA technology and utilizes Carbon Molecular Sieve (CMS) to separate nitrogen from the other gases contained in air. The Nitrogen Generator uses two beds of CMS to separate compressed air into a high-pressure nitrogen product stream and low-pressure oxygen enriched waste stream. Typical feed air pressure is 110 psig/7.6 barg. Typical nitrogen product purity for our systems is 99%. Product flow rate for the same system will be higher with better nitrogen recovery if a higher oxygen content can be accepted in the nitrogen product. Systems are available with a product purity up to 99.999% nitrogen (10 ppmv oxygen).

Generators are supplied as complete systems, ready for hookup to a compressed air supply, and it includes air filters and controls for automatic operation. Start up is at the flip of a switch and maintenance is limited to changing filters every three to twelve months. Each Nitrogen Generator comes pre-tested and fine tuned to meet the customer specified nitrogen flow rate and purity.

Our nitrogen generators have proven to be very popular and reliable for many applications. Having your own generator eliminates the hassle and safety issues you have with high-pressure nitrogen bottles or liquid nitrogen, and you will always have nitrogen available at a reduced cost.

The specifications for some of the many standard systems for production of 99% nitrogen (1% O₂) when operated at 110 psig / 7.6 barg pressure are as follows:

Model no.	HPN-40	HPN-75	HPN-110	HPN-150	HPN-180	HPN-270	HPN-450	HPN-725
N₂ Flow, Nm³/h	21.5	42.7	60	83	100	150	250	400
N₂ Flow, SCFH	802	1,593	2,238	3,096	3,731	5,596	9,328	14,924

(Consult Holtec for other purities and flow rates for our smaller and larger systems. ranging from 0.5 - 5,000+ Nm³/h)

Typical cabinet-mounted and skid mounted PSA nitrogen generators are shown in following pictures:

Cabinet style

Skid mounted system

Air pressure: 6.9 barg / 100 psig
Nitrogen Pressure: > 5.2 barg / 75 psig
Capacity: 375 Nm3/h / 14,000 scfh - 99.0% N2 (Each PSA skid)
Dimensions, LxWxH: 2,400 x 1,727 x 3,734 mm (Each PSA skid)
Dimensions, LxWxH: 8,255 x 1,727 x 3,734 mm (Total system)
Dimensions, LxWxH: 94.5" x 68" x 147" (Each PSA skid)
Dimensions, LxWxH: 325" x 68" x 147" (Total system)
Weight: 5,940 kg / 13,100 lbs (Each PSA skid)
Weight: 14,970 kg / 33,000 lbs (Total system)
Delivery: September 2005
Location: USA

Holtec Gas Systems
18167 Edison Avenue, Unit I, Chesterfield, MO 63005, USA - E-mail: sales@holtecllc.com
Telephone: +1-636-532-6613 extension 11 - Fax: +1-636-536-7863