Vacuum Pressure Swing Adsorption (VPSA) is an advanced gas separation technology that effectively separates gas components based on the different selectivity of adsorbents for gas molecules.

The VPSA Industrial Oxygen Plant/Unit, manufactured by Beijing Peking University Pioneer Technology Corporation Ltd., utilizes this cutting-edge technology to enrich the oxygen content in the air and provide a reliable source of oxygen for various industrial applications.

With a production capacity ranging from 1,000Nm3/h to 70,000Nm3/h (equivalent to approximately 34 TPD to 2,403 TPD of liquid oxygen), the VPSA Industrial Oxygen Plant/Unit is capable of meeting the oxygen demands of diverse industries.

It finds extensive use in steelmaking, including blast furnace oxygen-rich coal injection and electric furnace steelmaking. Additionally, it serves as a combustion-supporting agent in non-ferrous metallurgy processes involving copper, lead, nickel, zinc, tin, and gold.

The VPSA Industrial Oxygen Plant/Unit also plays a crucial role in the chemical industry, providing oxygen for gasification furnace oxygen-rich gas production, carbon black production, and sulphur trioxide production, among other applications.

It contributes to kiln energy-saving efforts by supporting combustion in glass kilns, cement kilns, and waste incinerators. In the papermaking industry, it aids in the pulp bleaching process, and in sewage treatment, it serves as the oxygen source for ozonizers utilizing OEAA technology.

This advanced oxygen generation system offers several technical advantages. It incorporates the high-efficient lithium-based VPSA-O2 adsorbent PU-8, renowned for its excellent selectivity and high working capacity of nitrogen. Coupled with unique airflow distribution technology, advanced process design, and reliable supplementary devices, Pioneer has achieved energy-efficient and large-scale VPSA-O2 plants that provide oxygen at a lower cost.

Pioneer, with its extensive engineering experience, has constructed numerous VPSA-O2 plants, including the world's largest plant, establishing its expertise in the field. The energy consumption of Pioneer's VPSA-O2 plant is impressively low, ranging from 0.29 to 0.32 kWh/m3 O2, among the most efficient worldwide.

The company's process design is internationally leading, with innovations such as the first set of radial bed in China and independently-developed five-bed and air intake designs.

The independently-developed lithium-based adsorbent PU-8 ensures superior performance and contributes to Pioneer's success in the VPSA-O2 industry. The system's stability and the maturity of its supplementary devices have been proven through extensive long-term engineering practice, ensuring reliable and continuous oxygen production for users.

Pioneer is dedicated to the mutual development of its customers, providing economical O2 utilization programs, optimizing existing plants, and offering on-site gas supply services. With their state-of-the-art VPSA Industrial Oxygen Plant/Unit, Pioneer aims to meet the oxygen requirements of various industries efficiently and reliably.

Production Capacity
1,000Nm3/h-70,000Nm3/h, equivalent to liquid oxygen of about 34 TPD – 2,403 TPD.

Typical Applications
>Steel: Blast furnace oxygen-rich coal injection, electric furnace steelmaking

> Non-ferrous metallurgy: combustion-supporting for non-ferrous metals metallurgy including copper, lead, nickel, zinc, tin and gold.

> Chemical: gasification furnace oxygen-rich gas making, carbon black production, sulphur trioxide production etc.

> Kiln energy-saving: combustion supporting for glass kilns, cement kilns and oxygen-rich combustion supporting for waste incinerators

> Papermaking: pulp bleaching process

> Sewage treatment: OEAA technology, oxygen source for ozonizer

Technical Advantages
Based on the high-efficient lithium-based VPSA-O2adsorbent PU-8, combining with the unique airflow distribution technology, advanced process design and reliable supplementary devices, PIONEER has successfully ensured energy-efficient and large-scale VPSA-O2plants to provide O2product at a lower cost.

PIONEER has built up over 100 sets of VPSA-O2plants and taken the lion share in the field of VPSA-O2in China. The VPSA-O2technology won the first prize for Science and Technology Progress by the Ministry of Education.

1. Experienced engineering

PIONEER has built the most VPSA-O2 plants in China, including the world’s largest VPSA-O2 plant.

2. Excellent energy consumption

Energy consumption of PIONEER’s VPSA-O2 plant is 0.29～0.32kWh/m3 O2, which is among the lowest, around the world .

3. Internationally-leading process design

PIONEER has built up the first set of radial bed in China.Independently-developed five-bed, air intake and other original process designs have proved obvious advantages.

4. The independently-developed lithium-based adsorbent

PIONEER’s independently-developed and produced lithium-based VPSA-O2 adsorbent PU-8 is featured by high selectivity and high working capacity of nitrogen, which is among the best around the world.

5. Mature and reliable system runningThe long-term engineering practice has proved that PIONEER’s VPSA-O2 plants are stable and the supplementary devices are mature and reliable, thus ensuring the continuous production for users.

PIONEER is committed to mutual development with the customers, by providing economical O2utilization program, optimization of existing plants or on-site gas supply.

Technical Principle
The VPSA-O2 after desorption is blown by a blower and enters the adsorption vessel of the VPSA-O2 system after being filtered and removed mechanical impurities. The adsorber is a double-vessel system, and its product is oxygen.

Nitrogen, carbon dioxide and water vapor in the air are adsorbed, and a vacuum pump will be applied after saturated adsorption to ensure the adsorbents in the adsorption vessel are completely desorbed for regeneration. The double-vessel VPSA-O2 system ensures continuous oxygen generation through cyclic switch of the program control valve under the control of PLC (data control system).