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Pressure swing adsorption air separation to O2, N2 technology and device

source:本站 2019-12-18


I. pressure swing adsorption for oxygen enrichment:

PSA device has the advantages of fast start-up, low energy consumption, simple operation, large adjustment range of load operation and simple maintenance. Since the 1980s, with the maturity of PSA technology, PSA has become the main method to obtain low-cost oxygen in the world, which is widely used in non-ferrous metal smelting (copper, zinc, lead, gold, nickel, titanium dioxide, etc.), ferrous metal smelting (blast furnace oxygen rich coal injection, iron smelting, electric furnace steelmaking, etc.), oxygen rich combustion, etc Combustion (industrial boilers, glass kilns, electrolytic aluminum), chemical gas production (production of synthetic ammonia, methanol, ethylene, glycol, etc.), medical field and sewage treatment (oxygen enriched explosion gas), pulp bleaching, hydrogen peroxide production, various chemical oxidation, cement industry, iron oxide cement, fire-resistant brick manufacturing, ozone generator, aquaculture, carbon black production, medical health care and other fields.

II. Nitrogen production by PSA:

Nitrogen is a kind of inert protective gas, which is widely used in grain preservation, pest control, fruit preservation, metallurgy, petroleum, chemical industry and other industries. Compared with the conventional cryogenic separation method, PSA has many advantages, such as high purity, high flexibility of operation, low investment, low operation cost, high automation of the device, and convenient start-up and shutdown.