Technology Brief：
Vacuum Pressure Swing Adsorption (VPSA) is an advanced gas separation technology that utilizes the different selectivity of adsorbents for gas molecules to separate gas components. Based on the principle of VPSA technology, the VPSA-O2 units adopt the special adsorbent (model: PU-8) to enrich the oxygen in the air and supply it to the user.
Production Capacity
1000Nm3/h～40000 Nm3/h, Converted to liquid oxygen: 34 TPD～1360 TPD, Purity: 50%～93%
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
Experienced engineering
We've built the most VPSA-O2 plants in China, including the world’s largest VPSA-O2 plant and built up over 100 sets of VPSA-O2plants and taken the lion share in the field of VPSA-O2 in China.
Excellent energy consumption
The energy consumption of our VPSA-O2 plant is 0.29～0.32kWh/m3 O2, which is among the lowest, around the world. The VPSA-O2 technology won the first prize for Science and Technology Progress by the Ministry of Education.
Internationally-leading process design
We've 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.
The independently-developed lithium-based adsorbent
Our 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. Based on the high-efficient lithium-based VPSA-O2 adsorbent PU-8, combining with the unique airflow distribution technology, advanced process design and reliable supplementary devices, We've successfully ensured energy-efficient and large-scale VPSA-O2 plants to provide O2 product at a lower cost.
Mature and reliable system running
The long-term engineering practice has proved that our VPSA-O2 plants are stable and the supplementary devices are mature and reliable, thus ensuring continuous production for users. We're committed to mutual development with the customers, by providing economical O2 utilization programs, optimization of existing plants or on-site gas supply.
