Tel: (+86) 572-375665   |   E-mail: sales@carbonche.com

  • Product Categories

  • Contact us

    Hotek Chemical Technology Co.,Ltd.
    (+86) 572-375665
    (+86) 572-375666
    sales@carbonche.com
    www.carbonche.com
    No.168,Changchao Industrial Zone,Huzhou City,Zhejiang,China.

  • Tags

    • 

    Carbon Molecular Sieve Working Condition

    1-)Air Compression Purification Process
    It is very important to supply purified gases for carbon molecular sieve adsorption tower,particles and organic gas would plug
    carbon molecular sieve pore,and gradually weak its separation performance. Air purification method as following.
    a)Put air inlet of air compressor away from the site where filled in oil mist and organic gas.
    b)Gas supplied to carbon molecular sieve for adsorption must be disposed by refrigeration dryer and purification system first.
    2-)Nitrogen Concentration and Productivity
    Nitrogen generated by carbon molecular sieve,nitrogen concentration and productivity is adjustable according to demand,while
    gas production time and operation pressure is determined,decrease gas productivity,concentration will increase, on the
    contrary,increase gas productivity,concentration would decreased.
    3-) Pressure Equalization Time
    In nitrogen separating process,while one adsorption tower finished its adsorption,the compressed air could immitted to
    another adsorption tower which had been regernerated,then the two adsorption tower reach same compressure,this process
    known as pressure equalization.proper pressure equalization time selection is benefit for enery-saving as well as decreasion
    of carbon molecular sieve confliction,so as to prolong the service life of carbon molecular sieve.reference to valve switching
    speed generally choosed pressure equalization time is 1~3 seconds.
    4-)Gas Production Time
    Carbon molecular sieve adsorb rate to oxygen and nitrogen is difference as oxygen and nitrogen molecular sieve in different 
    diffusion speed,oxygen adsorption would saturated in a short period of time,but the adsorption of nitrogen is very less.short
    production time can improve gas productivity effectively.but increase the operating frequency of the valve, so the performance
    of valve is also very important.
    General adsorption time is 30-120 seconds. small-size high nitrogen concentration generator is recommended short gas
    production time,large-size low nitrogen concentration recommended long gas production time.
    5-)Operating Pressure
    Carbon molecular sieve has dynamic effect as well as adsorption effect,higher adsorption pressure,higher adsorption capacity,
    so pressure is favorable for adsorption, but too high adsorption pressure  would result in difficulties for air compressor model
    selection.in addition,adsorption pressure request is different for normal pressure regeneration and vacuum regeneration,
    Considering all the consitions,suggest 5-8kg/cm2 adsporption pressure for normal pressure regeneration;and 3-5kgs/cm2
    adsorption pressure for vacuum regeneration.
    6-)The Use of Temperature
    As adsorbent,low adsorption tempreture is favorable,if possible lower adsorption temperature it is benefit for carbon 
    molecular sieve adsorption performance optimization.