OSP300 SCFM series nitrogen generator for Environmental protection
Industry with ISO, ASME , CE certificates
Nitrogen generators that are based on membrane and pressure swing
adsorption (PSA) technologies are both capable of generating
nitrogen gas and use compressed air as a means to feed their
systems and produce nitrogen. But when deciding which technology
will best serve your business, several issues need to be
considered.
Pressure Swing Adsorption Generators
A PSA nitrogen generator uses a Carbon Molecular Sieve (CMS) to
adsorb oxygen under high pressure while allowing the nitrogen to
pass through for collection in a storage unit.
PSA Nitrogen Generator – The Process
With the majority of pressure swing adsorption nitrogen generators,
two vessels are packed with carbon molecular sieves (CMS) to adsorb
oxygen as compressed air moves through the vessel. As one vessel is
adsorbing the second vessel is depressurized, and a small amount of
nitrogen flows downward to release the oxygen collected during the
adsorption process. The two vessels alternate between the
adsorption and desorption processes. The entire process for a PSA
generator takes approximately 60 seconds.
PSA Nitrogen Generator Systems
Purity Levels
PSA nitrogen generators can provide higher gas purities than can be
accomplished with a membrane nitrogen generator. PSA generators
manufactured by On Site Gas Systems offer the ability to achieve a
set purity level between 95% and 99.9995%.
Reliability
On Site Gas Systems PSA nitrogen generators have only a few moving
parts and if properly maintained can last for many years. It is not
uncommon for an On Site Gas Systems PSA nitrogen generators to
maintain its performance for over twenty years.
Very Little Maintenance
An On Site Gas Systems PSA nitrogen generator requires very little
maintenance. With clean, dry feed air most of the annual
maintenance is simply changes filter cartridge. Pellets that form
the hub of the pressure swing adsorption gas filtering process
(Zeolite or CMS) have an extensive lifespan and can last for at
least for decades.
Consistency
Pressure swing adsorption generators can provide the same high
volume of nitrogen for the life of the generator
Features and benefits
Cost-effective gas supply :
Standard, pre-engineered product range.
Highly skidded, modular design for low-cost site installation.
Compact design requires minimal plot space.
Fully automated controls for unattended operation.
High reliability for dependable gas supply:
Full local and remote operation with automatic callout for 24/7
support
(available also on customer-owned plants); remote monitoring by
Provides optimal performance at virtually all times.
Integrated instrument air system.
Liquid backup under a sale of gas contract provides even higher
onstream supply reliability and optimization of plant capital.
Low operating cost :
Turndown for power savings at reduced consumption rates.
Air Products’ proprietary adsorption process minimizes power
consumption.
Preventive maintenance program reduces overall maintenance costs.
Flexibility:
Customer and local code requirements can be supported within
product
design envelope.
Project execution strategies are optimized to local cost structure
and infrastructure available at the jobsite.
Air Products can provide a plant we own and operate, one owned by
the customer, and hybrid options in between.
Design reference :
Compressed air inlet pressure 7.5 bar(g)/108 psi(g)
Air quality 1.4.1 according to ISO 8573-1:2010
Nitrogen outlet pressure 6 bar(g)/87psi(g)
Nitrogen quality 1.2.1 according to ISO 8573-1:2010.
Designed working temperature max 50 ℃
Dew point at Nitrogen outlet - 40 ℃
Notes:
OSP nitrogen generator max working pressure 10 bar(g)/145psi(g)
Following request of PSA on-site nitrogen generator will be
customized :
Working pressure ＞10 bar(g)/145 psi(g)
Dew point ＜ - 50 ℃
Plug and play
Movable/containerized
Other special requirements as per site conditions
