NEWTEK PSA Nitrogen Generator: Reliable Nitrogen Blanketing and Purging Solution for Industrial Storage

Navigation 1. Operational Threats | 2. Core Pain Points | 3. Customized System Design | 4. Saudi Arabia Case Study

Industrial bulk storage tanks, chemical silos, fuel depots, edible oil reservoirs, and petrochemical stockpiles face two major operational threats.

First, oxidation deterioration of stored materials due to direct ambient air contact.

Second, flammable explosion risks caused by oxygen mixing with volatile vapors inside sealed vessels.

Nitrogen blanketing and pipeline purging have become the most widely accepted inert gas protection methods worldwide.

For decades, most storage facilities relied on delivered liquid nitrogen tanks or high-pressure nitrogen cylinders.

However, this traditional supply mode is plagued by unstable gas continuity, high transportation fees, strict cryogenic safety compliance, and uncontrollable blanketing pressure.

As a professional manufacturer specializing in PSA air separation equipment with more than 15 years of technical expertise, NEWTEK has developed a full series of PSA nitrogen generators.

Our systems are tailored specifically for tank blanketing, pipeline purging, sealed bin inerting, and tanker loading protection.

Equipment Parameters & Target Applications:

• Flow Rate Range: 3 Nm³/h to 350 Nm³/h

• Adjustable Purity: 95% up to 99.999% ultra-high purity

• Target Applications: Food & edible oil storage, chemical raw material silos, gasoline storage tanks, and pharmaceutical intermediate stockyards.

Hundreds of NEWTEK nitrogen systems are currently in stable operation across Southeast Asia, the Middle East, Central Asia, and Africa.

They provide continuous low-pressure inert nitrogen for bulk storage projects and eliminate the hidden operational risks of outsourced liquid nitrogen.

Core Pain Points of Traditional Nitrogen Supply for Industrial Storage

1. Intermittent Protection Due to Delayed Liquid Nitrogen Delivery

Storage tanks require continuous low-pressure nitrogen sealing 24/7 to prevent air infiltration through breathing valves.

When liquid nitrogen tankers are delayed by road closures, bad weather, or logistics bottlenecks, oxygen enters the tank immediately.

This leads to raw material oxidation, discoloration, and severe quality degradation.

For flammable liquid storage, oxygen intrusion spikes explosion risks, forcing enterprises to halt material receiving and delivery until nitrogen supply is restored.

2. High Comprehensive Costs and Gas Waste

Liquid nitrogen must be liquefied in large air separation plants, transported by insulated tankers, and stored in cryogenic vessels.

Every link adds extra costs, including delivery fees, cryogenic tank rentals, and natural evaporation loss (3% to 6% per month).

Small and medium-sized storage stations with intermittent consumption are still forced to pay minimum order fees to gas suppliers.

High-pressure nitrogen cylinders also incur high unit gas prices and high manual replacement labor, making long-term continuous blanketing unsustainable.

3. Unstable Output Pressure Damages Breathing Valves

Vaporized liquid nitrogen exhibits sharp pressure fluctuations as the liquid level in the cryogenic tank drops.

Sudden pressure spikes can damage tank breathing valves and overflow protection devices, while insufficient pressure fails to maintain an effective nitrogen blanket over the liquid surface.

Operators must frequently send personnel to adjust valve pressure manually, driving up labor costs.

4. Strict Safety Compliance for Cryogenic Equipment

Liquid nitrogen storage tanks are categorized as high-risk pressure vessels and subject to rigorous government inspections.

Enterprises must institute strict anti-freezing protocols, assign specialized personnel for daily leak detection, and enforce fire prevention zones around the tank area.

Many small edible oil and chemical storage depots lack dedicated safety management teams, leaving them vulnerable to penalties during safety audits.

NEWTEK PSA Nitrogen Generator Skid System engineered for tank blanketing

Turnkey NEWTEK PSA Nitrogen Generator skid system providing stable continuous inert gas supply.

NEWTEK PSA Nitrogen Generator: Customized Design for Blanketing and Purging Scenarios

NEWTEK fully optimizes its PSA nitrogen equipment for tank inerting, delivering complete turnkey solutions that include the nitrogen host, air pretreatment skid, low-pressure buffer tank, constant-pressure blanketing valve linkage system, and automatic purging control modules.

1. Multi-Grade Purity Configuration

Different storage materials demand different levels of inert protection. NEWTEK provides tailored purity outputs:

Low-Purity Grade (95% - 99% N2): Ideal for fuel oil, crude oil, coal tar, and non-oxidizable raw materials. Controls oxygen content below 5% to eliminate flammable vapor explosion risks.
Medium-Purity Grade (99.5% - 99.9% N2): Designed for edible vegetable oils, biodiesel, resins, and chemical solvents. Prevents rancidification and oxidative degradation.
Ultra-High Purity Grade (99.99% - 99.999% N2): Formulated for pharmaceutical intermediates, electronic chemicals, food additives, and high-purity monomer raw materials. Strictly isolates oxygen and moisture to ensure long-term shelf stability.

All NEWTEK models utilize high-performance carbon molecular sieves (CMS) paired with proprietary compact filling technology. The adsorption bed maintains uniform density over long-term cyclic operation, preventing purity attenuation for 8 to 10 years.

2. Constant-Pressure Output Matched with Breathing Valves

The cornerstone of NEWTEK blanketing-dedicated systems is the built-in PLC linkage pressure stabilization module.

A low-pressure nitrogen buffer tank at the outlet works in tandem with proportional regulating valves to maintain stable discharge pressure between 0.02 MPa and 0.08 MPa.

• Liquid Level Drops: As material is drawn out, the breathing valve opens, and the system automatically supplements inert gas to maintain the protective layer.

• Liquid Level Rises: As material fills the tank, the system intelligently scales back nitrogen output to prevent overpressure.

This automated pressure matching eliminates manual valve adjustments and stabilizes tank operation.

3. Energy-Saving Variable Frequency Operation

Tank depots require minimal nitrogen flow during routine storage, but demand high-flow bursts during pre-filling tank purging and pipeline sweeping.

NEWTEK's variable frequency control system automatically ramps down air compressor speed during low-consumption periods, cutting idle power consumption by over 25%.

When purging begins, output instantly boosts to rated capacity without any drop in purity.

4. Compact Skid-Mounted and Containerized Layouts

To accommodate diverse site requirements, NEWTEK offers two primary installation formats:

Skid-Mounted Integrated Unit: Air dryers, filters, adsorption towers, and control panels are integrated on a shared base frame. Ideal for facilities with an existing equipment room or indoor utility space.
Full Containerized Nitrogen Plant: Fully assembled inside a standard ISO shipping container with weather-proof, dust-proof, and anti-corrosion protection. Ideal for outdoor tank farms, temporary yards, and remote oil depots without indoor facilities.

All pipelines utilize 304 stainless steel to eliminate rust contamination. Operational noise levels remain under 65 dB for 24/7 continuous, unattended operation.

5. Remote IoT Cloud Monitoring

Every NEWTEK PSA unit comes standard with cloud data transmission.

Fleet managers can monitor real-time purity, outlet pressure, gas output, and power usage from any computer or mobile device.

Automatic SMS and app alerts notify operators immediately of pressure or purity deviations.

Key Benefits: How NEWTEK Solves Supply Pain Points

1. Uninterrupted 24/7 Supply Generates nitrogen directly from atmospheric air on-site, independent of external gas suppliers. For example, a palm oil storage depot in Malaysia replaced liquid nitrogen tankers with a NEWTEK 60 Nm³/h unit, successfully eliminating oxidation incidents caused by supply delays and reducing crude palm oil rancidification rates from 7% to below 1.2%.

2. Significant Cost Reduction For a 50 Nm³/h continuous blanketing project, equipment costs are typically recovered in 2.5 to 3 years. After payback, gas production costs drop to simple electricity usage, which is less than one-third the cost of delivered liquid nitrogen.

3. Protection of Tank Accessories Smooth, low-pressure gas delivery prevents pressure shocks to breathing valves and relief vents, reducing replacement frequency for safety accessories by over 60%.

4. Streamlined Safety Compliance Operates at ambient temperature and low pressure without cryogenic liquids or hazardous pressure vessels, simplifying safety audits and reducing site liability.

Storage tank nitrogen blanketing manifold and pressure regulator linkage

Nitrogen manifold regulator and pressure control system installed on chemical bulk storage tanks.

Real-World Case Study: Petrochemical Tank Farm in Saudi Arabia

A petrochemical storage enterprise in Saudi Arabia operates 16 organic solvent storage tanks.

Previously, they relied on monthly liquid nitrogen deliveries.

Extreme desert heat accelerated liquid nitrogen evaporation losses, while frequent sandstorms caused delivery delays that led to solvent oxidation and discoloration.

In 2025, the facility installed a NEWTEK 80 Nm³/h PSA Nitrogen Generator (99.9% Purity) featuring an outdoor high-temperature container design engineered for 55°C ambient conditions, complete with an automatic pressure linkage module.

Results After 1 Year of Operation:

• Zero Interruptions Achieved 100% continuous blanketing uptime across all 16 tanks.

• Zero Quality Loss Discoloration and oxidation incidents dropped to zero.

• 55% Cost Reduction Total annual inert gas expenditure was reduced by 55%.

• Simplified Compliance Cryogenic safety inspections and pressure vessel audits were eliminated.

Conclusion

Nitrogen blanketing and pipeline purging are vital safeguards for bulk storage operations.

Traditional liquid nitrogen tanks and high-pressure gas cylinders can no longer match the low operating costs, safety, and continuity required by modern industrial storage facilities.

NEWTEK PSA nitrogen generators offer an integrated solution, combining automatic constant-pressure control, multi-grade purity selection, variable frequency energy savings, and remote IoT management.

Whether you operate an edible oil refinery, a petrochemical tank farm, or a bulk chemical distribution hub, NEWTEK delivers reliable, turnkey equipment tailored to your precise operational parameters.

If you need a customized inert gas solution for your storage facility, contact NEWTEK's engineering team today to receive a free nitrogen flow calculation, system design proposal, and ROI analysis tailored to your tank farm.