VPSA Oxygen Generator with 15-30 Minutes Start-Up Time Stainless Steel Construction for Continuous Operation

By virtue of the periodic cycle of "adsorption-desorption", VPSA Oxygen Generator can extract oxygen from the air. The core lies in utilizing the adsorption difference of molecular sieves under different pressures—capturing nitrogen at low pressure and releasing impurities to regenerate molecular sieves under vacuum conditions. Composed of adsorption towers, blowers, PLC control systems and other components, the equipment can stably provide oxygen with a purity of 90%-95%, and its energy consumption is only 60%-70% of that of traditional oxygen production methods.

Product Parameters

Wide-Ranging Industrial Applications

In the metallurgical industry, VPSA Oxygen Generators are indispensable for oxygen-enriched combustion. In steelmaking plants, blowing 90%-92% purity oxygen into the converter can increase the flame temperature to over 1600°C, accelerating the oxidation of impurities such as carbon and silicon in molten iron, shortening the smelting cycle by 20%-30%, and reducing coal consumption by 15%-25%. For non-ferrous metal smelting (e.g., copper, aluminum), oxygen-enriched smelting not only improves production efficiency but also reduces harmful gas emissions such as sulfur dioxide, meeting environmental protection standards.

In the chemical industry, the generators provide high-purity oxygen for oxidation reactions—for instance, in the production of ethylene oxide, oxygen is used as an oxidant to react with ethylene, and the stable oxygen supply of VPSA ensures the reaction conversion rate reaches over 98%. In wastewater treatment plants, aeration tanks use oxygen to enhance the activity of aerobic microorganisms, which decompose organic pollutants more efficiently. Compared with air aeration, oxygen aeration reduces the aeration volume by 70% and shortens the treatment time by 40%.

Critical Roles in Medical and Environmental Fields

In the medical sector, VPSA Oxygen Generators are widely used in hospitals, clinics, and emergency centers. For general wards, the generator is connected to the central oxygen supply system, providing 93%±3% purity oxygen to bedside terminals, supporting the breathing of patients with respiratory diseases. In intensive care units (ICUs), it supplies high-flow oxygen for mechanical ventilation, with a stable flow rate of 5-30L/min to meet the needs of critically ill patients. Unlike bottled oxygen, VPSA realizes on-site oxygen production, avoiding the risks of transportation and storage of high-pressure gas cylinders.

The Underlying Working Principle

The core of VPSA’s efficient operation lies in the selective adsorption of molecular sieves. When air enters the adsorption tower, the molecular sieve’s porous structure (with a pore size of 0.3-0.5nm) allows oxygen molecules (diameter 0.296nm) to pass through while trapping nitrogen molecules (diameter 0.304nm) through van der Waals forces. The low-pressure adsorption (0.1-0.3MPa) ensures that the molecular sieve can adsorb nitrogen efficiently without requiring high-energy compression of air.

During vacuum desorption, the negative pressure environment reduces the partial pressure of nitrogen, breaking the adsorption equilibrium, and nitrogen is desorbed from the molecular sieve. The dual-tower design ensures that one tower is in adsorption while the other is in desorption, achieving continuous oxygen production. Compared with cryogenic distillation, which requires cooling air to -196°C for liquefaction separation, VPSA operates at ambient temperature (5-45°C), simplifying the process, reducing equipment complexity, and lowering the risk of freezing or corrosion.

In addition to VPSA Oxygen Generators, we also produce PSA Oxygen Generators, storage tanks, heat exchangers and other products. If you are interested in VPSA Oxygen Systems or other products, please feel free to send an email to info@gneeheatex.com. We will be very happy to serve you.

As a professional pressure vessel enterprise,Henan Gnee New Materials Co., Ltd. has been involved in the pressure vessel industry since 2012. Our company can provide products such as large cryogenic storage tanks and LPG series containers. At the beginning of the company's establishment, it purchased the most advanced equipment and recruited a group of skilled front-line workers. We are committed to providing the best products to our international customers. The company covers an area of 68,000 square meters and has 100 front-line workers, 12 technicians and 6 quality inspectors. The integration of production and sales, the company consists of five main departments: production department, technical department, sales department, general accounting department, and human resources department. Also, each department can be divided into many smaller departments. All departments cooperate with each other to bring the best for our company. In order to bring the most qualified products to the market, our quality control department implements strict quality inspection process from raw material procurement to finished product testing, to ensure that only the best products leave the factory for customers.

The group adheres to the tenet of “intentional management, customer priority, coordinated development and dedication to society” and abides by the business philosophy of “technology first, quality as priority, striving for excellence, integrity for future”, which continuously satisfy different needs of customer around the world in the steel supply chain area. Professional sales team, providing customers with first-class services; strict purchasing and quality inspection team, carefully selecting high-quality raw materials; advanced scientific and technical team to improve production and reduce costs for customers; excellent design and processing team, carefully crafted and refined; intimate shipping logistics team protecting product transportation.