oal raws li cov pa roj carbon activated yog tsim los ntawm ntau cov txheej txheem xws li carbonization, txias, ua kom, thiab ntxuav. Nws cov tsos yog feem ntau dub cylindrical activated carbon, amorphous thee particle activated carbon, tseem hu ua crushed carbon. Cylindrical activated carbon, tseem hu ua columnar carbon, feem ntau yog ua los ntawm cov hmoov raw cov ntaub ntawv thiab binders, uas yog tov, extruded, thiab ces carbonized, activated, thiab lwm yam txheej txheem. Nws tseem tuaj yeem raug extruded siv cov hmoov activated carbon thiab binder. Nws tau tsim cov qauv pore, zoo adsorption kev ua tau zoo, muaj zog txhua yam, yooj yim rau rov tsim dua tshiab, thiab tus nqi qis; Siv rau kev ua kom huv ntawm cov pa roj carbon monoxide, kev kho cov roj pov tseg, kev kho dej hauv tsev thiab hauv tsev, cov kuab tshuaj rov qab, thiab lwm yam.