Cov khoom lag luam tsis tshua muaj av ua lub luag haujlwm tseem ceeb hauv kev tsim thiab siv cov tshuaj catalysts peb txoj kev, uas yog cov khoom tseem ceeb hauv cov tshuab tswj kev tso pa tawm hauv tsheb. Cov tshuaj catalysts no yog tsim los txo cov pa phem los ntawm cov cav sib xyaw sab hauv, tshwj xeeb tshaj yog cov nitrogen oxides, carbon monoxide, thiab hydrocarbons. Kev koom ua ke ntawm cov khoom lag luam tsis tshua muaj av hauv cov tshuaj catalysts peb txoj kev tau txhim kho lawv cov kev ua tau zoo thiab kev ua haujlwm zoo, ua rau lawv tsis tseem ceeb hauv kev lag luam tsheb.
Cov khoom tsis tshua muaj av yog ib pawg ntawm cov tshuaj lom neeg uas muaj cov khoom siv hluav taws xob, kho qhov muag, thiab sib nqus tshwj xeeb. Cov khoom tsis tshua muaj av xws li cerium, lanthanum, thiab neodymium (Cerium ammonium nitrate, Cerium oxide, cerium nitrate, cerium carbonate, thiab lanthanum nitrate) yog cov khoom siv tsis tshua muaj av feem ntau siv hauv catalysis. Cov tshuaj no paub txog lawv lub peev xwm los pab txhawb ntau yam tshuaj lom neeg thiab siv dav dav ua cov catalysts hauv cov txheej txheem kev lag luam. Piv txwv li, Cerium oxide yog ib qho tseem ceeb hauv kev tsim cov khoom siv txhawb nqa catalyst, muab cov peev xwm khaws cia oxygen siab thiab txhawb kev hloov pauv ntawm cov pa phem mus rau hauv cov tshuaj tsis tshua muaj teeb meem. Lanthanum thiab neodymium kuj tseem siv los txhim kho kev ruaj khov thermal thiab catalytic kev ua haujlwm ntawm peb txoj kev catalysts. Kev siv cov khoom tsis tshua muaj av hauv cov catalysts no tau ua rau muaj kev nce qib tseem ceeb hauv kev siv tshuab tswj kev tso pa tawm, pab txhawb rau ib puag ncig huv dua thiab ruaj khov dua.
Qhov tseem ceeb ntawm cov khoom tsis tshua muaj av hauv cov catalysts peb txoj kev yog lawv lub peev xwm los txhim kho qhov kev ua tau zoo thiab kev ruaj khov ntawm cov txheej txheem catalyst. Los ntawm kev siv cov khoom tshwj xeeb ntawm cov khoom tsis tshua muaj av, xws li lawv thaj chaw siab, lub peev xwm khaws cov pa oxygen, thiab kev ruaj khov thermal, cov tuam txhab tsim tsheb tuaj yeem tsim cov catalysts zoo dua thiab zoo rau ib puag ncig. Qhov no tsis yog tsuas yog pab ua kom tau raws li cov cai tswjfwm kev tso pa tawm tab sis kuj txo qhov cuam tshuam rau ib puag ncig ntawm cov pa phem ntawm tsheb. Raws li kev lag luam tsheb txuas ntxiv muab qhov tseem ceeb rau kev ruaj khov thiab kev lav phib xaub rau ib puag ncig, kev siv cov khoom tsis tshua muaj av hauv cov catalysts peb txoj kev yuav tseem yog ib qho tseem ceeb ntawm kev tswj hwm kev tso pa tawm.
Xaus lus, kev siv cov khoom tsis tshua muaj av hauv cov tshuaj catalysts peb txoj kev tau hloov pauv kev tswj hwm pa phem hauv kev lag luam tsheb. Cov yam ntxwv tshwj xeeb ntawm cov khoom tsis tshua muaj av tau ua rau muaj kev tsim cov txheej txheem catalyst zoo heev, pab txhawb rau ib puag ncig huv si thiab noj qab haus huv dua. Raws li qhov kev thov rau cov thev naus laus zis huv si hauv tsheb txuas ntxiv loj hlob, qhov tseem ceeb ntawm cov khoom tsis tshua muaj av hauv cov tshuaj catalysts peb txoj kev tsuas yog yuav pom tseeb dua, tsav tsheb kev nce qib ntxiv hauv kev siv tshuab tswj kev tso pa phem.
Lub sijhawm tshaj tawm: Lub Xya Hli-30-2024
