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The leader of pressure swing adsorption technology
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VPSA变压吸附制氧
Vacuum pressure swing adsorption oxygen production technology (VPSA-O2)

Oxygen is an important industrial gas, widely used in steel, non-ferrous metallurgy, chemical industry, furnace energy saving, environmental protection (sewage treatment, waste incineration, etc.), glass, papermaking, medical and other industries. Lithium molecular sieve adsorbents appeared in the 1990s, and PSA air-separation oxygen production rapidly developed into a new low-cost oxygen production technology and began to be widely used.

Vacuum pressure swing adsorption oxygen production (VPSA-O2) The low-pressure raw air (25-39kPa) is sent by a blower, which is purified to remove dust and enter VPSA-O. 2 system adsorption tower. The adsorption tower is a two or three tower system, and the product gas of the adsorption tower is oxygen. After the nitrogen, carbon dioxide, and water vapor in the air are adsorbed to reach the set control value, because the adsorption pressure is low, desorption through atmospheric pressure is performed first, and then a vacuum pump is used to reach a certain degree of vacuum, so that the adsorbent impurities in the adsorption tower are completely desorbed. regeneration. Adsorption separation oxygen generation system composed of two or three columns, under the control of PLC or DCS (data control system), the program control valve is switched cyclically to complete continuous oxygen generation. This process is usually called the vacuum pressure swing adsorption oxygen production process (VPSA-O2).

Technical introduction
Based on the world-leading new high-efficiency lithium-based air separation oxygen sorbent PU-8 independently developed and produced by Peking Pioneer Company, Peking Pioneer has successfully developed a complete PSA oxygen production complete set technology, and has successfully developed a unique airflow distributor design technology to solve the problem. The problem of uniformity of air flow distribution in the large-diameter shallow adsorption bed was solved, and the large-scale oxygen production device was realized. The technique The technique won the first prize of National Science and Technology Progress Award of the Ministry of Education in 2006. According to the needs of users, Peking University Pioneer can provide complete sets of PSA air separation oxygen production equipment, or cooperate with equipment rental, on-site gas supply, etc., and can also use PU-8 high-efficiency oxygen production adsorbent to carry out the user's original oxygen production equipment Technical transformation.
  • Performance

    Oxygen production has low energy consumption. Compared with similar domestic technologies, the power consumption is 10-30% lower.

    Easy to operate and convenient to start and stop (startup time is less than 30 minutes).

    Small footprint, low maintenance costs, low installation and civil costs.

    Advanced process flow, high degree of automation, flexible operation and high long-term operation reliability.

  • Technical characteristics and advantages

    Oxygen production scale: 100 ~ 40000Nm³ / h

    Oxygen purity: adjustable from 21 to 95%

    Oxygen consumption: 0.32 ~ 0.38kW · h / Nm³ when the oxygen purity is 100%

更多 Classic case more
  • 15000/80 Oxygen Project for Blast Furnace Ironmaking of Ji'nan Iron and Steel
  • Hualing Henggang Comprehensive Utilization Project of Blast Furnace Gas
  • Tianye Phase II ethylene glycol, 1,4 butanediol project PSA unit
  • Ancillary equipment for Tongliao Gold Coal with an annual output of 200,000 tons of ethylene glycol