Generator underdelivers on purity or flow
Undersized feed-air equipment, poor drying, or upstream contamination can prevent a generator from reaching the design purity or flow.
Industrial Project ApplicationsUtilities and Process Industries
Compressed Air Systems for On-Site Nitrogen Generation
On-site nitrogen generators separate nitrogen from compressed air using PSA or membrane technology. They are used in fabrication, food packaging, electronics, chemical processing, tank blanketing, tire filling, and other industrial applications where a steady nitrogen supply is required.
Carolina Compressed Air reviews industrial compressed-air projects throughout North Carolina and South Carolina.
Application Overview
What This Application Involves
On-site nitrogen generators separate nitrogen from compressed air using PSA or membrane technology. They are used in fabrication, food packaging, electronics, chemical processing, tank blanketing, tire filling, and other industrial applications where a steady nitrogen supply is required.
Nitrogen purity, flow, and delivered pressure together determine the full system design: the air compressor, dryer, filtration, storage, generator, and downstream storage. Higher purity typically requires more air, so the entire chain should be sized together.
Air Usage
Where Compressed Air Is Involved
- Feed air to PSA or membrane generator
- Instrument and control air
- Related plant utility air
System Design
Why Compressor-System Design Matters
- ●Nitrogen purity target
- ●Peak and average nitrogen flow
- ●Delivered pressure at the point of use
- ●Continuous versus intermittent demand
- ●Redundancy for critical processes
Symptoms
Problems an Inadequate System Can Cause
Compressor short-cycles under generator demand
Nitrogen generators can create steady, heavy air demand. Compressor sizing and controls should match that profile.
Delivered nitrogen costs rising with production
Facilities growing their nitrogen use often evaluate on-site generation against delivered gas.
These symptoms may be connected to the compressed-air supply and should be evaluated alongside the machine itself.
Equipment
Equipment That May Be Part of the Project
- Rotary screw or oil-free compressor
- Refrigerated or desiccant dryer
- Multi-stage coalescing and particulate filtration
- Air receiver upstream of the generator
- PSA or membrane nitrogen generator
- Nitrogen storage tank
- Purity and flow monitoring
- Ambient Air
- Compressor
- Receiver
- Dryer
- Filtration
- Nitrogen Generator
- HP Storage
- Machine or Process
Example system arrangement. Final configuration depends on application requirements.
Equipment selection follows application review. Final choices depend on OEM requirements, measured demand, air quality, dew point, and site conditions.
Checklist
Information Needed to Evaluate the Project
- ✓Machine manufacturer
- ✓Machine model
- ✓OEM air requirements
- ✓Required pressure
- ✓Required flow
- ✓Number of machines
- ✓Production schedule
- ✓Expected simultaneous operation
- ✓Current compressor equipment
- ✓Current dryer and filtration
- ✓Existing receiver capacity
- ✓Existing pipe size and material
- ✓Distance from the compressor room
- ✓Required air quality
- ✓Required dew point
- ✓Current operating problems
- ✓Redundancy expectations
- ✓Installation schedule
- ✓Facility location
- ✓Photos, drawings, equipment data sheets
- ✓Required nitrogen purity
- ✓Required nitrogen flow and pressure
- ✓Current nitrogen source and monthly usage
- ✓Continuous or intermittent demand
If the exact air demand is unknown, submit the machine information, available equipment documents, and expected production schedule. The system requirements can then be reviewed before equipment is selected.
Carolinas Coverage
Industrial Compressed Air Projects Across the Carolinas
Carolina Compressed Air actively reviews new machinery, production expansion, compressor-room replacement, air-treatment, piping, blower, vacuum, and nitrogen-generation opportunities throughout North Carolina and South Carolina.
North Carolina markets include Charlotte, Concord, Gastonia, Statesville, Hickory, Mooresville, Greensboro, Winston-Salem, High Point, Raleigh, Durham, Fayetteville, and Wilmington. South Carolina markets include Rock Hill, Fort Mill, Greenville, Spartanburg, Columbia, and Charleston.
Related
Related Application Pages
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- Compressed Air Systems for Food Packaging EquipmentAir supply, treatment, and controls for form-fill-seal, tray sealing, cartoning, and case packing lines.Explore this application →
- Clean Compressed Air for Semiconductor and Electronics ManufacturingClean, dry, redundant compressor-room systems supporting electronics and semiconductor plants.Explore this application →
- Compressed Air Systems for Pharmaceutical Manufacturing and PackagingClean, reliable air for pharmaceutical production equipment, packaging, and instrumentation.Explore this application →
FAQ
Frequently Asked Questions
+What purity can on-site generators reach?
PSA systems can typically reach higher purities than membrane systems. The right purity depends on the application and should not be over-specified, since higher purity generally requires more air.
+How large a compressor do we need?
It depends on nitrogen flow, purity, generator technology, and duty cycle. The full chain should be sized together rather than starting with the compressor alone.
+Can we phase in on-site generation?
Some facilities keep delivered gas as backup while phasing in generation. This is a project design question that should be reviewed early.
+What information do we need to submit?
Current or expected nitrogen usage, required purity, pressure and flow, and information on existing compressor and dryer equipment.
Submit the Project for Review
Planning a Compressed Air Project for This Application?
Send us the machine information, equipment requirements, facility location, and desired schedule. Carolina Compressed Air will review the application and determine what additional information is needed to evaluate the compressor, air treatment, storage, piping, blower, vacuum, or nitrogen requirements.
Prefer to talk first? Call (704) 268-6901.