Tsib Qhov Cuam Tshuam Txog Ntawm Kev Ua Kom Kev Ua Dej Sov Kev Kho Vaj Tse

Txij li cov txheej txheem adsorption thiab kev ua raws li cov ntsiab lus koom nrog kev tsim kho cov pa roj carbon monoxide muaj kev cuam tshuam ntau, kuj tseem muaj ntau yam cuam tshuam. Feem ntau cuam tshuam rau cov xwm txheej ntawm cov pa roj carbon activated, qhov xwm txheej ntawm cov pa paug nyob hauv dej, cov txheej txheem cov txheej txheem ntawm kev ua kom sov cov pa roj carbon monoxide, thiab xaiv cov haujlwm ua haujlwm thiab cov haujlwm ua haujlwm.

1. Cov khoom siv ntawm cov roj carbon activated Cov pa roj carbon activated siv rau kev kho dej yuav tsum muaj peb qhov yuav tsum tau muaj: muaj peev xwm loj adsorption, tawm ceev ceev adsorption, thiab lub zog zoo txhua yam. Ntxiv rau lwm yam xwm txheej sab nraud, adsorption peev xwm ntawm cov roj carbon activated yog feem ntau muaj feem xyuam nrog tshwj xeeb nto ntawm cov roj carbon activated; qhov adsorption nrawm yog feem ntau cuam tshuam nrog qhov loj me hauv qhov me me thiab pore faib ntawm cov roj carbon activated. Cov pa roj carbon tshuab hluav taws xob uas siv rau kev kho dej yuav tsum muaj kev hloov pauv kom zoo (xoo hluav taws xob ntawm 20 mus rau 1 000 Angstroms), uas yog qhov zoo rau adsorption pawg (muaj kuab paug hauv dej) diffuses rau hauv cov micropores. Qhov me me qhov loj me ntawm qhov ua kom cov pa roj carbon monoxide, qhov ceev ceev dua adsorption, tab sis qhov poob ntawm lub taub hau dej yuav tsum tau nce, feem ntau nyob hauv thaj tsam ntawm 8-30 mesh. Cov neeg kho tshuab coj tsis kam ntawm kev ua kom cov pa roj carbon muaj kev cuam tshuam kev pab lub neej ntawm cov roj carbon activated.

2. Qhov xwm txheej ntawm cov pa phem Cov adsorption muaj peev xwm ntawm tib cov roj carbon activated rau cov kuab paug muaj ntau qhov sib txawv. Vim tias cov solubility sib txawv, cov qauv tsim qauv, txheej txheem polarity thiab concentration ntawm cov pa paug nyob hauv dej, adsorption muaj peev xwm ntawm cov pa roj carbon ua haujlwm sib txawv.

3. Kub Vim tias cov txheej txheem adsorption yog ib qho tshuaj tiv thaiv exothermic, qhov kub adsorption yog me me thaum kua theem adsorption. Thaum cov dej yog kho nrog cov pa roj carbon tshuab, qhov kub tsis muaj qhov cuam tshuam zoo li cov adsorption.

4. Cov txiaj ntsig ntawm kev sib koom ua ke ntawm cov khoom sib txuam ntau ntau thaum ua rau kev kho dej los ntawm adsorption, feem ntau dej tsis yog ib qho khoom muaj kuab paug, tab sis sib xyaw ua ke ntawm cov khoom muaj kuab paug ntau. Thaum lub sijhawm adsorption, lawv tuaj yeem sib koom-adsorb, txhawb nqa lossis cuam tshuam nrog lwm tus. Feem ntau, qhov peev xwm adsorption ntawm ntau qhov sib xyaw adsorption qis dua li ntawm ib qho ntawm cov roj-adsorption.

5. Cov kev ua haujlwm adsorption vim tias qhov ua kom cov pa roj carbon ua kua theem adsorption, sab nraud diffusion (kua zaj duab xis diffusion) nrawm muaj qhov cuam tshuam ntawm adsorption, yog li hom adsorption ntaus ntawv, lub sijhawm sib tiv tauj (dej txaus tus nqi), thiab lwm yam muaj qhov cuam tshuam ntawm adsorption nyhuv.