Cov Khoom Ntawm Activated Carbon
Thaum xaiv cov pa roj carbon activated rau ib daim ntawv thov, ntau yam yam ntxwv yuav tsum xav txog:
Pore Structure
Cov qauv pore ntawm cov pa roj carbon activated sib txawv thiab feem ntau yog los ntawm cov khoom siv thiab cov txheej txheem ntawm kev tsim khoom.¹ Cov qauv pore, ua ke nrog cov rog txaus nyiam, yog qhov tso cai rau adsorption tshwm sim.
Hardness/Abrasion
Hardness / abrasion kuj yog ib qho tseem ceeb ntawm kev xaiv. Ntau daim ntawv thov yuav xav tau cov pa roj carbon activated kom muaj lub zog particle siab thiab tiv thaiv kom tsis txhob raug mob (kev tawg ntawm cov khoom siv rau hauv kev nplua). Cov pa roj carbon activated uas ua los ntawm cov txiv maj phaub plhaub muaj qhov nyuaj tshaj plaws ntawm cov pa roj carbon activated.
Adsorptive Properties
Lub zog nqus ntawm cov pa roj carbon activated encompass ob peb yam ntxwv, nrog rau lub peev xwm adsorptive, tus nqi ntawm adsorption, thiab tag nrho cov txiaj ntsig ntawm activated carbon.
Nyob ntawm daim ntawv thov (kua lossis roj), cov khoom no yuav raug qhia los ntawm ntau yam, suav nrog tus lej iodine, thaj chaw saum npoo av, thiab Carbon Tetrachloride Activity (CTC).
Pom Ntsig
Thaum pom tseeb qhov ceev yuav tsis cuam tshuam rau adsorption ib chav tsev qhov hnyav, nws yuav cuam tshuam rau qhov adsorption ib chav tsev ntim.
Moisture
Qhov zoo tshaj plaws, tus nqi ntawm lub cev noo noo nyob hauv cov pa roj carbon activated yuav tsum poob li ntawm 3-6%.
Tshauv Ntsiab Lus
Cov hmoov tshauv ntawm cov pa roj carbon activated yog ib qho kev ntsuas ntawm inert, amorphous, inorganic, thiab siv tsis tau ib feem ntawm cov khoom. Cov ntsiab lus tshauv yuav zoo li tsawg li tsawg tau, vim qhov zoo ntawm cov pa roj carbon activated nce ntxiv thaum cov hmoov tshauv txo.
Tus nqi pH
Tus nqi pH feem ntau yog ntsuas los kwv yees qhov kev hloov pauv thaum cov pa roj carbon activated ntxiv rau cov kua.
Particle Loj
Qhov loj me muaj qhov cuam tshuam ncaj qha rau adsorption kinetics, cov yam ntxwv ntws, thiab lim dej ntawm cov pa roj carbon activated.
Activated Carbon Production
Cov pa roj carbon activated yog tsim los ntawm ob txoj haujlwm tseem ceeb: carbonization thiab ua kom muaj zog.
Carbonization
Thaum lub sij hawm carbonization, raw khoom yog thermally decomposed nyob rau hauv ib tug inert ib puag ncig, nyob rau hauv kub hauv qab no 800 ºC. Los ntawm gasification, cov khoom xws li oxygen, hydrogen, nitrogen, thiab sulfur, raug tshem tawm ntawm cov khoom siv.
Ua kom
Cov khoom siv carbonized, los yog char, tam sim no yuav tsum tau qhib kom tag nrho tsim cov qauv pore. Qhov no yog ua los ntawm oxidizing lub char ntawm qhov kub ntawm 800-900 ºC nyob rau hauv lub xub ntiag ntawm huab cua, carbon dioxide, los yog chav.
Nyob ntawm cov khoom siv, cov txheej txheem ntawm kev tsim cov pa roj carbon activated tuaj yeem ua tau los ntawm kev siv thermal (lub cev / chav dej) ua kom muaj zog, lossis ua kom muaj tshuaj lom neeg. Nyob rau hauv ob qho tib si, lub qhov cub hluav taws xob tuaj yeem siv los ua cov khoom siv rau hauv cov pa roj carbon activated.
Peb yog cov chaw muag khoom tseem ceeb hauv Suav teb, rau tus nqi lossis cov ntaub ntawv ntau ntxiv txais tos hu rau peb ntawm:
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Post lub sij hawm: Aug-07-2025