VPSA Oxygen Generator

The VPSA (Vacuum Pressure Swing Adsorption) Oxygen Generator represents an advanced, energy-efficient oxygen production technology. It combines a blower for adsorption and a vacuum pump for deep regeneration, enabling ultra-low power consumption. Designed for large-scale, continuous industrial oxygen supply, it is the most cost-effective solution for applications like steelmaking, chemical processing, and large-scale wastewater treatment.

Parameter	Specification
Technology	Vacuum Pressure Swing Adsorption (VPSA)
Adsorbent	Specialized Zeolite Molecular Sieve (e.g., VSP, LiX)
Product Gas	Oxygen (O₂)
Purity	90% - 95%
Capacity	50 - 2000 Nm³/h (up to 10,000 Nm³/h)
Adsorption Pressure	30 - 100 kPa
Desorption Pressure	Vacuum state (e.g., below -70 kPa)
Power Consumption	0.32 - 0.5 kWh/Nm³ O₂
System	Blower, Adsorbers, Vacuum Pump, PLC Control
Core Advantage	Ultra-low energy consumption, large-scale production

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Estimated VPSA Oxygen Generator Price

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Product & Technical Features

Power Source
- Primary motive equipment includes a blower (to supply pressurized air) and a vacuum pump (to provide desorption vacuum).
- Operating Pressure: Adsorption pressure is slightly above atmospheric pressure (typically 30–100 kPa); desorption utilizes vacuum.
Energy Consumption Characteristics
- Due to low operating pressure and the use of vacuum desorption, energy consumption is significantly lower compared to PSA oxygen generators.
Economies of Scale
- Particularly suitable for medium to large-scale oxygen generation plants. Capacities range from 50–2,000 Nm³/h, with maximum installations reaching up to 10,000 Nm³/h.
Process Configurations
- Based on the number of adsorption vessels, systems may be classified into two-bed, three-bed, five-bed, and other configurations to optimize gas flow impact, pressure fluctuations, and continuous oxygen supply stability.

Core Advantages

Low Energy Consumption and Operating Cost

This represents its most prominent advantage.
Suitability for Large-Scale Production

Economic viability significantly surpasses that of PSA oxygen generators at larger output capacities.
High Oxygen Recovery Rate

More thorough vacuum desorption enhances adsorbent utilization efficiency and oxygen recovery yield.
VPSA oxygen generation power consumption

VPSA oxygen generation power consumption can be as low as 0.32–0.5 kWh/Nm³ O₂
PSA oxygen generation

Whereas PSA oxygen generation typically consumes approximately 0.65–0.8 kWh/Nm³ O₂.

Product Specifications

Product scale	Oxygen purity	Oxygen pressure	Equipment composition
100-10000Nm³/h	25-94%	20 Kpa (can be pressurized)	Fan, vacuum pump, A&B adsorption tower

Working Principle

Core Principle: Based on Vacuum Pressure Swing Adsorption (VPSA) technology, an enhanced variant of PSA.
Adsorbent: Utilizes zeolite molecular sieves (e.g., VSP, VS2, VS6, LiX types).
Process Description: Similar to PSA, but employs a vacuum pump during the regeneration phase to enable desorption under sub-atmospheric pressure conditions (e.g., adsorption pressure 30–100 kPa, desorption pressure down to below -70 kPa). This lower desorption pressure facilitates more thorough regeneration of the molecular sieve.

Primary Application Scenarios

Applicable to all fields requiring large-scale, low-cost oxygen supply, particularly as a replacement for PSA oxygen generators or purchased oxygen in large-scale projects sensitive to operational energy costs.

Large-scale ferrous metallurgy

(blast furnace oxygen enrichment).
Large-scale chemical complexes

(feedstock gas generation, oxidation processes).
Large-capacity wastewater treatment plants.

Large-capacity wastewater treatment plants.
Glass Manufacturing

Glass manufacturing
Pulp and paper industries

Pulp and paper industries
Others

Other sectors with substantial oxygen demand.