Based on years of industry practice, research, analysis, and evaluation, EPSEA concludes that replacing liquid and cylinder nitrogen with PSA nitrogen generation systems is not only more energy-efficient and effective but can also save users over 50% in annual nitrogen costs. Furthermore, the initial investment in the nitrogen generation equipment can be recouped within 1-1.5 years. So, PSA air separation nitrogen generation systems represent an advanced solution in the nitrogen field and are the optimal choice for exceptionally high return on investment (ROI)!
As an inert gas, nitrogen is widely used across various industries in industrial production. The nitrogen market is primarily divided into three segments: liquid nitrogen, cylinder nitrogen, and air separation nitrogen generation. With national industrial upgrading and the rapid development of sectors like new energy, semiconductors, lithium battery vehicles, metallurgy, and energy, the demand for nitrogen is increasing year by year. In 2024, the industry demand is estimated at around 3 billion CNY, growing at an annual rate of 15%. Therefore, the incremental blue ocean market for PSA air separation nitrogen generation lies in its ability to replace cylinder nitrogen upwards and displace liquid nitrogen downwards.
While cylinder nitrogen doesn't require ultra-low temperature storage, the steel cylinders occupy significant space, have limited single-cylinder capacity, and necessitate frequent manual replacements. This not only disrupts continuous gas supply but also increases labor costs. High-pressure cylinders pose safety hazards; their transportation and handling require strict procedures, making stable supply difficult to guarantee. Moreover, the long-term cost of purchasing cylinder nitrogen accumulates with its usage.
Cylinder Nitrogen Replacement Case
A manufacturing enterprise for laser welding.
This user originally used the traditional cylinder nitrogen supply method and later upgraded to the EPSEA modular air separation nitrogen generation system.
Nitrogen is used for laser welding, requiring 99.99% purity, 0.2 MPa pressure, 10 H/day.
Based on joint data analysis:
User's On-site Cylinder Nitrogen Supply Cost Before Replacement:
Daily cylinder usage: 5 cylinders, Daily nitrogen cost: CNY 200. Annual usage (~300 days): ~1500 cylinders, Total cost: CNY 60,000.
Nitrogen Generator Operating Cost After Replacement:
EPSEA Modular Air Separation Nitrogen Generation System, selected for 99.99% purity, 0.2 MPa output, flow rate 3m³/H (5*5÷10=2.5m³/H). System power consumption: 5.5 kW. Daily electricity cost: 5.5 *10 H = 55 kWh ≈ CNY 55/day. Annual running cost: 300 days * 10 H * 5.5 kW = 16,500 kWh. Electricity cost reference: CNY 1/kWh, totaling CNY 16,500/year.
Replacing cylinder nitrogen with the EPSEA modular nitrogen generator not only saves CNY 150 per day in gas costs but also recoups the initial equipment investment within 200 days.
Liquid Nitrogen Replacement Case
An Industrial enterprise for aluminum brazed fins & sintering furnaces.
Originally, the traditional liquid nitrogen supply method was used, but it was later upgraded to the EPSEA twin-tower air separation nitrogen generation system.
Before the upgrade, the equipment recorded an annual runtime of 1,900 hours. The user's on-site nitrogen consumption was 150 Nm³/h, which corresponds to approximately 356 tons of liquid nitrogen after conversion.
Based on joint data analysis:
User’s On-Site Liquid Nitrogen Supply Cost (Before Replacement):Local liquid nitrogen purchase price: CNY 1,500/tonCost for 356 tons: 356 × 1,500 = CNY 534,375
Nitrogen Generator Operating Cost (After Replacement):
Total system energy consumption: 75 kWElectricity consumption for 1,900 hours: 75 kW × 1,900 h = 142,500 kWhLocal electricity cost: CNY 0.8/kWhElectricity cost: 142,500 × 0.8 = CNY 114,000
Cost Difference:
CNY 534,375 - CNY 114,000 = CNY 420,375 (approximately CNY 420,000)
As a result, annual nitrogen cost savings reached an impressive 80%. The user was highly satisfied with the upgrade and gave strong recognition to the EPSEA nitrogen generator for its remarkable cost reduction and efficiency improvement.
Furthermore, this user is located remotely and uses nitrogen intermittently. Liquid nitrogen purchases required 3–5 days of advance booking. Liquid nitrogen storage incurs a daily natural loss rate of 5% — meaning purchased nitrogen incurs losses even before use, and unused nitrogen also depletes due to evaporation. The user actually consumed 2 tons per production run but had to purchase 4 tons each time to ensure stable production.
After deploying the EPSEA nitrogen generator, the on-demand production and stable supply model effectively avoids the above risks, ensuring production continuity. Amid the industrial trend of cost reduction, efficiency improvement, and supply chain optimization, EPSEA nitrogen generators help enterprise users achieve these goals by providing effective solutions for reducing costs and improving efficiency.
In summary, amid the accelerating upgrade of industrial production, replacing cylinder and liquid nitrogen represents a significant growth opportunity in the nitrogen market. With outstanding technical capabilities and product quality, EPSEA nitrogen generators will continue to drive the transformation of industrial nitrogen supply from traditional liquid and cylinder models to PSA air separation nitrogen generation system solutions. They are the optimal choice for enterprises seeking to enhance competitiveness and achieve cost reduction and efficiency improvement.
Notes：Application reference of PSA air separation nitrogen generator industry
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