化学反应器吸附器 海门rto蓄热式焚烧/vocs催化燃烧【2018设备报价】(6)

After the reaction of the high temperature gas through the heat exchanger, the heat transfer part of the gas back into the activated carbon adsorption bed desorption, and the other part into the atmosphere。 The temperature of the waste gas is increased rapidly after the heat exchanger is heated。 This enables the catalytic combustion device and desorption to achieve low power or no power operation。

Activated carbon is made from carbon material such as sawdust, husk, lignite and so on, which is prepared by carbonization and activation。 There are two kinds of powder (10~50 microns in diameter) and granular (0。4 ~ 2。4 millimeters in diameter)。 Nature is porous, large specific surface area。 The total surface area of 500 square meters per gram to 1000。 The main performance parameters are adsorption capacity and adsorption rate。 Adsorption capacity is the soluble mass that can be adsorbed when the unit weight activated carbon reaches saturation。

It is related to raw material, manufacturing process and regeneration method。 The greater the adsorption capacity, the more the amount of activated carbon。 Adsorption rate refers to the soluble mass absorbed by unit weight activated carbon in unit time。 Because of the selectivity of adsorption, the performance parameters should be determined by experiments。 Granular activated carbon should have a certain mechanical strength and particle size specifications。

physical adsorption

The adsorption of adsorbent and adsorbate (solute) through molecular force is called physical adsorption。 This is the most common form of adsorption, which is characterized by the fact that the adsorbate molecules are not attached to the fixed point on the surface of the adsorbent, but slightly move freely on the interface。 Because adsorption is caused by molecular force, the adsorption heat is small, physical adsorption does not require activation energy, and can be carried out under low temperature。

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