Vacuum pressure swing adsorption and desorption of oxygen machine

Vacuum pressure swing adsorption and desorption of oxygen machine (referred to as VPSA oxygen), which penetrates under molecular sieves 13x atmospheric pressure conditions, using VPSA special air Selective Adsorption nitrogen,molecular sieve desiccant carbon dioxide and water and other impurities, vacuuming 4a zeolite molecular sieves under the conditions of the molecular sieve desorption, and thus the cycle to obtain high purity oxygen (90 to 94%). VPSA low energy consumption, the greater the power consumption and low equipment.

molecular sieve drying Under a certain pressure

molecular sieve drying Under a certain pressure, as the temperature decreases, the moisture content of natural gas saturated water will fall. Thus, reducing the gas temperature of the gas can  molecular sieve design  be partially condensed steam precipitation method of dewatering. This method requires the use of gas expansion get cold, and can simultaneously control the water dew point and hydrocarbon dew point, 5a molecular sieves  therefore, mostly for high-pressure gas condensate or high-pressure wet containing heavy hydrocarbons such as natural gas wellhead pressure for the use of excess occasion. If the low pressure associated gas for use in high pressure or no pressure wet gas, we need a refrigerant cooling.

The most representative adsorbent is activated carbon adsorption is quite good

Using multiple adsorption column effluent oil content according to the level of a series of sewage treatment,molecular sieve adsorbent oil content in the effluent monitoring at, if the water quality  molecular sieve adsorbent  is not up to then enter the circulatory system to continue processing until the compliance date. If oily wastewater COD, emulsion content is higher, before entering into the first reactor COD removal device and emulsion and dissolved substances such  regeneration of molecular sieves  as pretreatment removal device.
The most representative adsorbent is activated carbon adsorption performance is quite good, but the cost is relatively high, the event has been applied in the Songhua River water for adsorption of toluene. Then there zeolite, silica gel, activated aluminum, polymer adsorbent and biological adsorbents, etc.