Psa Vpsa Oxygen Generator Plant Paper And Pulp Industries 15 Bar

Paper and Pulp industries for Oxy bleaching and delignification with 15 bar on-site oxygen generator by VPSA technology

What Is an Oxygen Generator?

An oxygen generator is a device that separates oxygen from compressed air using special selective adsorptive technology called pressure swing adsorption (PSA). The compressed air used in the oxygen generation process has a similar composition to ambient environmental air with 21% oxygen and 78% nitrogen. The oxygen contained in the compressed air is allowed to flow through a zeolite molecular sieve which retains nitrogen resulting in high purity oxygen at gas production outlets.



Operating Principles for a PSA Oxygen Generator

The pressure swing adsorption process for a PSA oxygen generator is essentially the same as that of a nitrogen generator with one major distinction. The adsorptive material inside its molecular sieve is made of zeolite rather than carbon found in a nitrogen PSA device.
During a routine operation, compressed air channeled through the oxygen generator will be separated into its component gases. The zeolite molecular sieve will selectively adsorb nitrogen that meets it while allowing high purity oxygen gas to flow onwards to a product gas outlet.
A unique feature of zeolite that makes it ideal for an oxygen generator is its ability to released retained nitrogen gas once the pressure within the generator is eased. This makes it quite easy to regenerate the medium for a further cycle of oxygen generation.

How Does an Oxygen Generator Work?

An oxygen generator using PSA technology utilizes the ability of adsorbent zeolite material to separate a stream of compressed air into its component gases. The pressure swing adsorption process to produce high purity oxygen is a two-stage cycle that involves simultaneous adsorption and desorption activities in two generation towers.

Adsorption

The adsorption stage of oxygen generation uses an adsorptive tower packed with molecular zeolite pellets that selectively retains nitrogen while allowing oxygen to pass into a collecting tank as product gas under pressure.

This process of selective adsorption will continue until the adsorptive tower reaches its maximum saturation point at which the zeolite sieve can no longer absorb more nitrogen gas.

Desorption

This second step in the PSA oxygen generation process is essentially a reversal of the adsorption process. Once the saturation point for a tower in the adsorptive phase is reached, its function is altered. Regeneration of the zeolite material is by rapidly depressurizing the cylinder to release absorbed nitrogen gas into the atmosphere.

The entire PSA process is automated with a central regulatory unit detecting oxygen and nitrogen gas saturation levels in both the adsorption and desorption towers. The phase switch is done by opening or closing the appropriate process valves and raising or reducing the pressure within the zeolite packed cylinders.


Features and Benefits :

Turnkey solution
Fully automatic operation
High purity of gas outlet stability
Very competitive production costs
Evolving concept with one or more interconnected production lines
Integrated controller system with high definition color touch screen
Ergonomic design for simple and economical maintenance
Durable performance thanks to reliable, tested and controlled components
Low consumption - high efficiency molecular sieve

Technical datas

Purity : from 90 to 99.5% (DS-PSA models)
Flow : from 2 to 150Nm3/h
Inlet pressure : from 7.5 to 10 bar
Applications
Fish farming
Glass Industry
Healthcare / Veterinary
Metal Industry
Water Treatment
Vinification

Design reference :

Compressed air inlet pressure 7.5 bar(g)/108 psi(g)
Air quality 1.4.1 according to ISO 8573-1:2010
Oxygen outlet pressure 2-4 bar(g)/58psi(g)
Oxygen quality 1.2.1 according to ISO 8573-1:2010.
Designed working temperature max 50 ℃
Dew point at Oxygen outlet - 50 ℃


Notes:
Following request of oxygen generator will be customized :
Oxygen outlet pressure ＞4 bar(g)/58 psi(g)
Filling cylinders 150 bar(g)/200 bar(g)/300 bar(g)
Dew point ＜ - 50 ℃
Movable/containerized , plug and play
Other special requirements as per site conditions

Sumairui Gas System CO., Ltd located Suzhou High technology district, the company size over 40000 m2, with two more than 8000 m2 modernized standard factories and one 2000 m2 Business office building.

Sumairui Gas devoted in gas equipment research and development, manufacture, sales with service, providing professional gas equipment and service, supply nitrogen generator, oxygen generator, hydrogen generator with other gas drying machine , purification also recovery device. We have obtained ISO, ASME, CE, GOST, SGS, BV, ABS, RINA, LR etc certificates, equipment widely used for over 40 industries field like Oil and gas, Chemical, food, heat treatment, steel, laser, coal mine, Lithium battery, electron, metallurgy, chemical fiber, cable, cooper, pharmaceutical, household,environmental, Tungsten molybdenum, AVIC with military etc . Our equipment had exported to many countries like Russia, Indonesia,, Vietnam, Malaysia, USA, Mexico, Brazil, Bulgaria, Romania, Macedonia etc.

We adheres to supply trustable machine, best service concept, has been committed machine research and development, improving various branches efficiency with service, to return the best service to every customer !

Provided trustable machine and best service for the world !