1、工藝流程
2、活性炭的吸附原理
吸附現象是發生在兩個不同的相界面的現象,吸附過程就是在界面上的擴散過程,是發生在固體表面的吸附,這是由于固體表面存在著剩余的吸引而引起的。
吸附可分為物理吸附和化學吸附;物理吸附亦稱范德華吸附,是由于吸附劑與吸附質分子之間的靜電力或范德華引力導致物理吸附引起的,當固體和氣體之間的分子引力大于氣體分子之間的引力時,即使氣體的壓力低于與操作溫度相對應和飽和蒸氣壓,氣體分子也會冷凝在固體表面上,物理吸附是一種吸熱過程。
化學吸附亦稱活性吸附,是由于吸附劑表面與吸附質分子間的化學反應力導致化學吸附,它涉及分子中化學鍵的破壞和重新結合,因此,化學吸附過程的吸附熱較物理吸附過程大。
在吸附過程中,物理吸附和化學吸附之間沒有嚴格的界限,同一物質在較低溫度下往往是化學吸附。活性炭纖維吸附以物理吸附為主,但由于表面活性劑的存在,也有一定的化學吸附作用。
3、工藝說明
車間有機廢氣通過吸氣罩收集,在排風機作用下,經過管道輸送進入干式過濾器,再進入活性炭吸附裝置,有機污染物被活性炭吸附,凈化后的氣體經風機增壓后達標排放。
活性炭吸附飽和后,請專業廠家再生后回用。
1, process
2, activated carbon adsorption principle
Adsorption phenomenon is the phenomenon occurs in two distinct phase interface, the adsorption process is the diffusion process at the interface, adsorption occurs at a solid surface, which is due to the existence of the remaining solid surface attraction caused.
Can be divided into physical adsorption and chemical adsorption; physical adsorption, also known as the van der Waals adsorption is due to the electrostatic force between the adsorbent and adsorbate molecules or van der Waals attraction leads to physical adsorption caused when the molecular attraction between the solid and gas is greater than the gas when the attractive force between molecules, even if the operating pressure of the gas is lower than the temperature corresponding to the saturated vapor pressure, will condense the gas molecules on a solid surface, physical adsorption is an endothermic process.
Also known as chemisorption active adsorption, chemical reaction force due to the surface of the adsorbent and adsorbate molecules cause chemical adsorption, which involves the destruction of chemical bonds in molecules and recombine, therefore, the heat of adsorption chemisorption process relatively large physical adsorption process.
In the adsorption process, there is no strict boundaries between physical and chemical adsorption, chemisorption is often the same substance at lower temperatures. Activated Carbon Fiber physical adsorption based, but due to the presence of a surfactant, there are certain chemical adsorption.
3, process description
Drag organic waste collected by the hood, under the effect of the exhaust fan through the pipeline entering the dry filter, and then into the activated carbon adsorption unit, activated carbon adsorption of organic pollutants, the purified gas booster fan after discharge.
After the activated carbon adsorption saturation, please post professional manufacturers Reuse.