Qhov sib txawv tseem ceeb ntawm carbonization thiab graphitization yog tias carbonization koom nrog kev hloov pauv ntawm cov organic teeb meem rau carbon, whereas graphitization koom nrog kev hloov pauv ntawm carbon rau hauv graphite.
Carbonization thiab graphitization yog ob txoj kev lag luam uas txawv ntawm ib leeg, tab sis ob qho tib si cov txheej txheem no suav nrog cov pa roj carbon monoxide los yog cov khoom siv.
Carbonization yog dab tsi?
Carbonization yog txheej txheem kev lag luam uas cov organic teeb meem hloov mus rau carbon. Cov organic teeb meem uas peb xav txog ntawm no suav nrog cov nroj tsuag thiab cov tsiaj tuag. Cov txheej txheem tshwm sim los ntawm kev puas tsuaj distillation. Nws yog cov tshuaj tiv thaiv pyrolytic uas yog suav tias yog txheej txheem nyuaj uas peb tuaj yeem soj ntsuam ntau yam tshuaj lom neeg tshwm sim ib txhij. Piv txwv li, dehydrogenation, condensation, hloov hydrogen thiab isomerization.
Cov txheej txheem carbonization txawv ntawm cov txheej txheem coalification vim tias carbonization yog txheej txheem sai dua vim nws cov tshuaj tiv thaiv tau nrawm dua los ntawm ntau qhov kev txiav txim siab. Feem ntau, cov cua sov siv tau tuaj yeem tswj cov qib carbonization thiab cov ntsiab lus seem ntawm cov khoom txawv teb chaws. Piv txwv li, ntawm 1200 K qhov kub thiab txias, cov ntsiab lus ntawm cov seem yog kwv yees li 90% los ntawm qhov hnyav, thaum txog 1600 K kub, nws yog li 99% los ntawm qhov hnyav.
Feem ntau, carbonization yog cov tshuaj tiv thaiv exothermic, thiab peb tuaj yeem ua rau nws tus kheej txhawb nqa, thiab peb tuaj yeem siv nws los ua lub zog uas tsis tsim cov pa roj carbon dioxide. Txawm li cas los xij, yog tias cov khoom siv biomaterial raug hloov pauv sai sai, piv txwv li, hauv kev tawg nuclear, biomatter tau txais carbonized sai li sai tau, thiab nws hloov mus ua cov khoom carbon..
Graphitization yog dab tsi?
Graphitization yog txheej txheem kev lag luam uas carbon tau hloov mus rau hauv graphite. Nws yog kev hloov pauv microstructural uas tshwm sim hauv cov pa roj carbon lossis cov hlau tsis tshua muaj hlau uas raug kub hnyiab los ntawm 425 txog 550 Celsius degree rau lub sijhawm ntev, zoo li ib txhiab teev. Nws yog hom embrittlement.
Piv txwv li, microstructure ntawm carbon-molybdenum steels feem ntau muaj pearlite (ib qho sib xyaw ntawm ferrite thiab cementite). Thaum cov khoom no raug rau graphitization, nws ua rau decomposition ntawm pearlite rau hauv ferrite thiab randomly dispersed graphite. Qhov no tuaj yeem ua rau lub embrittlement ntawm cov hlau, thiab thaum cov graphite hais randomly faib thoob plaws hauv matrix, nws tuaj yeem ua rau poob qis ntawm lub zog.
Txawm li cas los xij, peb tuaj yeem tiv thaiv graphitization los ntawm kev siv cov khoom siv tiv thaiv ntau dua uas tsis tshua muaj siab rau graphitization. Tsis tas li ntawd, peb tuaj yeem tiv thaiv nws los ntawm kev hloov kho ib puag ncig, xws li. los ntawm kev nce pH lossis txo cov ntsiab lus chloride. Muaj lwm txoj hauv kev tiv thaiv graphitization uas suav nrog kev siv cov txheej txheem, piv txwv li. cathodic tiv thaiv ntawm cam khwb cia hlau.
Dab tsi yog qhov zoo sib xws ntawm Carbonization thiab Graphitization
Ob leeg yog cov txheej txheem tseem ceeb hauv kev lag luam uas muaj cov pa roj carbon monoxide los yog ua cov khoom lag luam
Qhov txawv ntawm Carbonization thiab Graphitization yog dab tsi?
Carbonization thiab graphitization yog ob txoj kev lag luam. Qhov sib txawv tseem ceeb ntawm carbonization thiab graphitization yog tias carbonization cuam tshuam nrog kev hloov pauv ntawm cov organic teeb meem rau carbon, thaum graphitization cuam tshuam nrog kev hloov pauv ntawm carbon rau hauv graphite. Yog li ntawd, carbonization yog ib qho tshuaj hloov pauv thaum graphitization yog kev hloov microstructural.
Cov lus qhia hauv qab no qhia txog qhov sib txawv ntawm carbonization thiab graphitization hauv daim ntawv teev npe.
Summary – Carbonization vs Graphitization
Carbonization thiab graphitization yog ob txoj kev lag luam sib txawv. Qhov sib txawv tseem ceeb ntawm carbonization thiab graphitization yog tias carbonization cuam tshuam nrog kev hloov pauv ntawm cov khoom organic rau hauv cov pa roj carbon monoxide, whereas graphitization cuam tshuam nrog kev hloov pauv ntawm carbon rau hauv graphite.
