Severe Argon Waste: Traditional PSA (Pressure Swing Adsorption) regeneration consumes 15-20% of the finished argon. For a 10,000-scale air separation unit, the annual loss of high-purity argon is valued at over 20 million RMB.
Unstable Dew Point: Fluctuations in regeneration pressure (0.5-0.8MPa) reduce the adsorption efficiency of molecular sieves by 30%, causing the dew point to drift from -70℃ to -40℃.
Persistently High Energy Consumption: Electric heating regeneration consumes 0.25-0.4 kWh/Nm³, accounting for 40% of the total energy consumption of argon purification.
Short Adsorbent Service Life: Trace oxygen (1-10ppm) in argon leads to oxidative failure of molecular sieves, shortening their replacement cycle from 5 years to 1-2 years.
SYSTEM OVERVIEW
Yipu Zero Gas Consumption Argon Dehydration System achieves the following through a “high-pressure adsorption – waste heat regeneration – deoxygenation protection” technology closed-loop:
Zero Resource Waste: The additional argon recovered annually can fill 20 40-foot storage tanks.
Energy Efficiency Benchmark: The net energy consumption of the system is only 1/15 of that of traditional PSA.
Ultra-Purity Guarantee: A dew point of -80℃ plus residual oxygen of 0.01ppm, meeting the semiconductor-grade argon standard.
Technology Evolution
Launched a helium-argon co-production model in 2024, which simultaneously purifies He to 99.999%.
This solution is a revolutionary piece of equipment for the air separation and special gas industries to reduce costs, improve efficiency, and maximize resource utilization.
Solution Approach
Yipu Zero Gas Consumption Argon Circulation Regeneration Adsorption Dehydration Solution
Module
Technical Solution
Performance Indicators
High-Pressure Adsorption Tower
Carbon fiber-wound shell, with pressure resistance of 5MPa
Outlet dew point: -80℃ @ 3MPa
Heat Pipe Heat Exchanger
Sodium heat pipe for recovering waste heat from cold box, efficiency ≥90%
Predictive maintenance system, molecular sieve service life error ≤7 days
Supports OPC UA protocol
Applicable Scenarios
Argon purification for air separation units (99.999%-99.9999%)
Dehydration of protective gas for monocrystalline silicon furnaces
Preparation of electronic-grade special gases
Argon treatment for aerospace propellants
Technical Principles
Yipu Three-Stage Zero Gas Consumption Regeneration Process
Deep Adsorption (Stage 1): Lithium-based molecular sieves (LiX-HP) achieve a dew point of -80℃ at 3MPa, with dynamic adsorption capacity increased by 50%.
Waste Heat Regeneration (Stage 2): Waste heat (80-100℃) from the air separation cold box is recovered to drive regeneration, replacing traditional electric heating/argon purging.
Oxygen Trapping Protection (Stage 3): The palladium-catalyzed deoxygenation module reduces O₂ to below 0.01ppm, protecting the service life of molecular sieves.
Intelligent Control: A laser dew point meter combined with an AI algorithm dynamically adjusts the regeneration temperature (±1℃) to avoid overheating damage.
CORE ADVANTAGE
Advantage Category
Description
Customized on Demand
Meets special operating conditions; provides professional non-standard customization
Low Cost
Adopts a cyclic regeneration process; significantly reduces usage costs
High Stability
Double-tower structure with minimal pressure fluctuation; low noise and continuous gas supply
Fully Automatic Operation
Easy to operate, reducing labor input; improves efficiency
Maintains a low failure rate after 10,000 hours of operation; nearly maintenance-free durability
TECHNICAL STRENGTH
Leading Adsorption Dehydration Technology
Uses high-performance molecular sieve adsorbents with high water absorption capacity and resistance to acidic gas (H₂S/CO₂) corrosion, ensuring deep dehydration with a dew point ≤ -70℃.
Features an original hot nitrogen regeneration process, reducing energy consumption by 30% compared to traditional electric heating regeneration, and integrates a waste heat recovery system to significantly improve energy efficiency.
Modular and Customized Design Capability
Core equipment adopts modular prefabrication, supporting rapid deployment (installation cycle shortened by 50%) and adapting to diverse scenarios such as offshore platforms, onshore gas fields, and LNG pre-treatment.
Can customize single-tower, double-tower, or multi-tower parallel systems according to customer needs, with a treatment capacity ranging from 10,000 to 1,000,000 Nm³/d, flexibly matching gas fields of different scales.
Intelligent Control and Remote Operation & Maintenance
Equipped with a PLC+IoT intelligent control system to monitor key parameters such as pressure, temperature, and dew point in real time, supporting fault early warning and automatic adjustment.
Optimizes the adsorption-regeneration cycle through cloud-based big data analysis, extending the service life of molecular sieves and reducing operation and maintenance costs by 10%-15%.
Energy-Saving and Environmental Protection Technology
Features a zero-emission design for regenerated tail gas, complying with EU CE, US EPA, and other international environmental standards.
Energy consumption is 25%-40% lower than that of traditional TEG (Triethylene Glycol) dehydration systems, helping customers achieve carbon emission reduction goals.
Long-Cycle Operation Reliability
Molecular sieves adopt anti-pulverization coating technology, with a service life of over 5 years, reducing replacement frequency.
Key components (such as valves and instruments) are selected from international first-tier brands (e.g., Siemens, Emerson), with an MTBF (Mean Time Between Failures) of over 100,000 hours.
Strong R&D and Engineering Experience
Holds 19+ patents for dehydration technology and software copyrights; the R&D team is led by doctors and maintains in-depth cooperation with universities and colleges.
Has over 1,000 successful cases worldwide, covering extreme operating conditions such as high-sulfur gas fields in the Middle East and low-temperature environments in the Arctic.
Product Advantage Comparison
Indicator
Yipu System
Traditional PSA
Competitor Thermal Regeneration
Refrigeration + Adsorption
Argon Loss
≤0.1%
15-20%
0% (but high electricity consumption)
5-8%
Dew Point Stability
-80℃±2℃ (at 3MPa)
-70℃±15℃ (at 0.8MPa)
-60℃±10℃
-50℃±20℃
Energy Consumption
3.8 kWh/Nm³
4.5-5.0 kWh/Nm³
4.2-4.8 kWh/Nm³
4.0 kWh/Nm³
Molecular Sieve Life
≥8 years (O₂ content ≤0.01ppm)
2 years (O₂ content 1-10ppm)
5 years
3 years
Investment Payback Period
1.8 years (argon price: 8 RMB/Nm³)
No cost savings
4 years
3.5 years
Typical Case
Project Name: 10,000-Scale Air Separation Argon Purification Project for a Special Gas Company
