Khoom Description
Coal raws li granular activated carbon muaj qhov tshwj xeeb zoo vim nws lub zog siab, txhim kho qhov pores zoo, thaj chaw loj tshwj xeeb, thiab tshwj xeeb tshaj yog loj microporous ntim. Coal-based activated carbon muaj zog adsorption muaj peev xwm rau ntau yam organic teeb meem, dawb chlorine hauv dej, thiab cov pa phem hauv huab cua. Nws yog ib qho zoo heev adsorbent rau sib sib zog nqus purification ntawm cov dej haus hauv nroog thiab yog siv los tshem tawm cov kab mob thiab cov pa phem hauv huab cua.
Coal-based activated carbon tau tsim pore qauv, zoo tshuaj stability, thiab txhua yam muaj zog, ua rau nws yog ib qho zoo heev broad-spectrum carbon adsorption khoom.
Raws li kev siv sib txawv, cov pa roj carbon activated tuaj yeem muab faib ua ntau yam kev siv xws li dej purification, huab cua purification, decolorization, hnyav rov qab, txhaj tshuaj, thiab kev tiv thaiv.
Vim nws cov kua qaub tsis kam, alkali tsis kam, kub tsis kam, thiab qhov yooj yim rov tsim dua ntawm cov pa roj carbon monoxide tom qab adsorption saturation, activated carbon yog ib qho tseem ceeb carbon adsorption khoom nyob rau hauv niaj hnub industrial ntau lawm thiab kev tiv thaiv ib puag ncig.
Lub adsorption ntawm solute molecules nyob rau hauv dej los ntawm thee raws li granular activated carbon yog ib tug complex txheej txheem uas yog tshwm sim los ntawm ib tug ua ke ntawm ob peb lub zog, xws li ion attraction, van der Waals quab yuam, thiab tshuaj impurity quab yuam. Raws li kev tshawb xav dual tus nqi diffusion txoj kev xav ntawm adsorption, adsorption yog tus txheej txheem dual tus nqi uas muaj ob theem: nrawm nrawm thiab qeeb diffusion. Lub diffusion sai yog ua tiav nyob rau hauv ob peb teev, exerting lub peev xwm adsorption ntawm 60% mus rau 80% thee raws li granular activated carbon.
Rapid diffusion yog cov txheej txheem ntawm cov kuab tshuaj molecules diffusing nyob rau hauv loj pores nrog tsawg kuj thiab uniformly faib radially nyob rau hauv cov pa roj carbon hais. Cov pores loj no tsim kom muaj radial diffusion tsis kam. Thaum cov molecules diffuse ntxiv los ntawm macropores mus rau hauv micropores txuas nrog macropores, lawv qeeb heev vim qhov tseem ceeb tsis kam tsim los ntawm qhov nqaim pore loj. Micropores kuj tseem faib ua cov pa roj carbon monoxide, tab sis tsis yog radial diffusion tsis kam.
Cov yam ntxwv cuam tshuam rau qhov adsorption ntawm thee raws li granular activated carbon muaj cov kuab tshuaj molecular polarity, molecular hnyav, thiab spatial qauv, uas nyob ntawm seb cov yam ntxwv ntawm cov dej zoo ntawm qhov chaw. Coal raws li granular activated carbon muaj xaiv adsorption zog rau cov khoom sib txawv molecules.
Cov yam ntxwv rau thee raws li activated carbon granular:
1. Cov cheeb tsam loj
2.High pore ntim
3. Muaj peev xwm nqus tau
4. Kev ua haujlwm siab
