Liquid Nitrogen Production Plant
SINNA GAS Liquid Nitrogen Production Plant is an advanced cryogenic air separation system designed for continuous on-site production of high-purity liquid nitrogen (LN₂). The system allows industries to generate their own liquid nitrogen instead of relying on external supply, significantly reducing logistics cost and ensuring stable gas availability.
With strong engineering capability and global export experience, SINNA GAS delivers customized nitrogen generation solutions for food processing, pharmaceutical manufacturing, electronics, metallurgy, laboratories, and industrial gas distribution.
Why On-Site Liquid Nitrogen Production?
Traditional liquid nitrogen supply depends on cylinder or tanker delivery, which leads to:
- High transportation cost
- Supply instability in remote areas
- Product loss due to evaporation
- Dependency on suppliers
With SINNA GAS on-site production system, customers can achieve:
- Independent nitrogen supply
- Lower long-term operating cost
- Stable 24/7 production
- Reduced logistics risk
- Flexible production capacity
For industries with continuous nitrogen consumption, on-site generation is often the most economical long-term solution.
Working Principle
The plant operates based on mature cryogenic distillation technology.
Air is first compressed and purified to remove moisture, CO₂, and hydrocarbons. The purified air is then cooled to cryogenic temperatures using a heat exchange system and turbo expander.
Inside the distillation column, nitrogen is separated from oxygen and other gases due to different boiling points. High-purity nitrogen is then liquefied and stored in insulated cryogenic tanks.
This process ensures stable production of liquid nitrogen with industrial-grade purity and continuous output capability.
Key Technical Advantages
High Purity Output
- Nitrogen purity: 99.9% – 99.999%
- Stable output quality suitable for sensitive industries
Energy Optimized Design
- Low specific power consumption (varies by capacity)
- Optimized heat exchange system
- Reduced compression loss
Continuous Operation
- Designed for 24/7 industrial use
- Stable output with minimal fluctuation
- High operational reliability (>98% availability target)
Intelligent Automation
- PLC + HMI control system
- Automatic start/stop sequence
- Real-time monitoring and alarms
- Remote diagnostics optional
Technical Specifications
|
Item |
Range |
|
Product |
Liquid Nitrogen (LN₂) |
|
Capacity |
20 – 10,000+ LPH |
|
Purity |
99.9% – 99.999% |
|
Pressure |
Customized |
|
Control System |
PLC + HMI |
|
Cooling Type |
Air / Water cooled |
|
Operation |
Continuous 24/7 |
|
Design Life |
20+ years |
All systems are customized according to customer site conditions, power supply, and application requirements.
Main System Components
Air Compression System: Industrial-grade compressors designed for continuous duty and stable air supply.
Purification Unit: Molecular sieve system removes moisture and CO₂ to protect cryogenic equipment.
Cryogenic Cold Box: Vacuum-insulated structure ensuring minimal thermal loss and high efficiency.
Turbo Expander: Generates refrigeration required for deep cooling and liquefaction process.
Distillation Column: Core separation unit ensuring high nitrogen purity and stable operation.
Liquid Nitrogen Storage Tank: Vacuum insulated cryogenic tank with ultra-low evaporation loss.
Control System: PLC-based automation system enabling smart operation and remote monitoring.
Engineering Capability & Manufacturing Strength
SINNA GAS is a manufacturer specializing in cryogenic air separation systems and industrial gas equipment.
Our manufacturing capability includes:
- Engineering design team with process expertise
- Standardized cryogenic production workshops
- Pressure vessel fabrication capability
- Factory testing before shipment (FAT)
- Modular skid-mounted system integration
We follow strict quality control procedures including:
- Pressure testing
- Leak detection testing
- Electrical system verification
- Performance simulation
- Factory acceptance testing
Project Experience
SINNA GAS has delivered liquid nitrogen production systems for customers across:
- Southeast Asia
- Middle East
- South America
- Africa
- Eastern Europe
Case 1: Food Processing Plant (Southeast Asia)
- Capacity: 500 LPH
- Application: Seafood freezing (IQF system)
- Result: 30% reduction in nitrogen cost
- Stable 24/7 production achieved
Case 2: Pharmaceutical Factory (Middle East)
- Capacity: 1000 LPH
- Application: Vaccine storage & lab use
- Requirement: 99.999% purity
- Result: Continuous stable supply with zero downtime requirement met
Case 3: Industrial Gas Distributor (Africa)
- Capacity: 2000 LPH
- Application: Local gas distribution
- Result: Reduced dependency on imported liquid nitrogen supply
These projects demonstrate SINNA GAS capability in real industrial environments.
Applications
Food Industry
- IQF freezing
- Meat & seafood preservation
- Cold chain logistics
Pharmaceutical Industry
- Vaccine storage
- Biological preservation
- Freeze drying
Electronics Industry
- Semiconductor manufacturing
- Cooling processes
Metal Industry
- Cryogenic treatment
- Shrink fitting
Chemical Industry
- Inerting systems
- Reactor protection
Laboratory Use
- Research institutes
- Universities
- Biotechnology labs
Return on Investment
On-site nitrogen production is economically viable when consumption exceeds industrial scale usage.
Typical advantages:
- Eliminates transport cost
- Reduces supply dependency
- Stabilizes production cost
- Improves operational efficiency
Estimated payback period:
1.5 to 4 years (depending on local nitrogen price and electricity cost)
SINNA GAS provides customized ROI evaluation based on project data.
Why Choose SINNA GAS
- Professional cryogenic equipment manufacturer
- Customized engineering solutions
- Strong export experience
- Reliable industrial-grade design
- Full EPC project support
- Remote and onsite technical service
- Long-term spare parts support
- Competitive project investment cost
SINNA GAS focuses on providing stable, efficient, and economically sustainable gas generation solutions for global industrial customers.
FAQ
Q: What purity level can the system achieve?
A: Our plants can produce nitrogen with purity from 99.9% up to 99.999%, depending on configuration.
Q: What is the typical production range?
A: We offer systems from 20 LPH to over 10,000 LPH, fully customizable.
Q: Is the system suitable for continuous operation?
A: Yes. The plant is designed for 24/7 continuous industrial operation with high stability.
Q: What industries use liquid nitrogen plants?
A: Food, pharmaceutical, electronics, metallurgy, chemical, and research industries widely use LN₂ systems.
Q: Do you provide installation support?
A: Yes. We provide overseas installation guidance, commissioning, and operator training.
Q: How can I get a quotation?
A: Send your required capacity, purity, location, and application. Our engineering team will provide a customized solution and quotation within 24–48 hours.
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