Due to its low cost, flexible load adjustment, and simple start-up & shut-down, VPSA oxygen generation technology is widely used in industrial production. For example, in the steel industry whose market has improved in the past two years, in order to increase the oxygen enrichment rate of blast furnace, reduce the coke ratio and improve blast furnace production capacity, usually VPSA...

(1) Energy Saving The vertical adsorption vessel is a radial cylindrical-grid-structure vessel. Compared with the axial adsorption vessel, the adsorbent bed is thinner, and the resistance is smaller, thus reducing the air flow pressure and leading to the discharge pressure & power decrease of rotary equipment correspondingly. By calculation and practice, energy consumption of VPSA oxy...

At present, industrial oxygen production methods mainly include cryogenic air separation oxygen generation, pressure swing adsorption oxygen production and membrane separation oxygen production. Pressure swing adsorption is an advanced gas separation technology standing at an irreplaceable position in the field of onsite gas supply in the world today. Main features of pressure swing adsorption ...

By the end of 2019, Pioneer’s annual turnover has reached ¥600 million as per the preliminary statistics on new projects this year, which will usher in a new historical breakthrough. Meanwhile, Pioneer still spares no effort in optimizing oxygen plant project management and improving engineering quality. On December 3, 2019, the Engineering Technology Department held the sixth Project ...

Compared with the cryogenic separation technology, PSA-CO plant has quite a few advantages: simple operation, short start-up and shut-down time, flexible load adjustment and high automation. It only takes tens of minutes to start up. Meanwhile, according to the downstream needs, load adjustment within the range of 30% to 100% can be realized by simple adjusting at short notice, which can g...

The basic principle of PSA-CO technology is to use the adsorption selectivity of the adsorbent to adsorb CO in the mixed gas, and then to desorb CO by decompression or vacuumizing to achieve the CO separation. It can be seen from the comparison with the adsorption curve of 5A molecular sieve that the adsorption performance of the copper-loaded molecular sieve is more excellent. On o...

Vacuum pressure swing adsorption (VPSA) oxygen plants generally utilize the operating steps shown above to separate and enrich oxygen. In one cycle, each adsorption vessel needs to undergo five steps: "adsorption", "pressure reduction", "vacuum desorption", "Purging" and "pressure increasing". (1) Adsorption After mechanical impurities in the air is removed by the filter, it enters the ad...

VPSA (vacuum pressure swing adsorption) is separating oxygen from air by vacuum decompression for desorption. The pressure swing adsorption oxygen generation uses air as the feed gas which is forced by a blower to pass under pressure through the adsorbent bed. The nitrogen, carbon dioxide and water in the air are adsorbed by the adsorbent, and the remaining components pass through the absorb...

The oxygen-producing adsorbents mainly relies on its selective adsorption to nitrogen and oxygen penetrating function. They’re mainly divided into calcium-based CaA and CaX, and lithium-based LiX. CaA and CaX adsorbents are based on traditional molecular sieves used in the 1980s, therefore the cost is lower, but the energy consumption of producing oxygen is higher, therefore, total lo...

In the 1970s, Union Carbide Corporation industrialized pressure swing adsorption (PSA) oxygen generation technology for the first time using normal pressure desorption (PSA) process. The adsorbent was CaA adsorbent with low nitrogen adsorption capacity and high oxygen power consumption. In the 1990s, vacuum pressure swing adsorption (VPSA) oxygen production technology using LiX...