Txog tam sim no, muaj ntau homtsawg ntiaj tebpurification catalysts uas tau tsim thiab siv, thiab lawv cov kev faib tawm kuj muaj ntau haiv neeg. Ib qho yooj yim thiab intuitive faib yog raws li cov duab ntawm cov catalyst, uas yuav muab faib ua ob hom: granular thiab honeycomb. Granular catalysts feem ntau yog siv γ- Al2O3 yog cov cab kuj nrog lub peev xwm loj, uas tuaj yeem thauj khoom 10% mus rau 20%tsawg ntiaj tebthiab lwm yam hlau oxides. Nws muaj kev cuam tshuam zoo, tab sis nws qhov kev tawm dag zog yog siab, uas cuam tshuam rau nws lub zog thiab kev lag luam. Honeycomb zoo li tus catalysts feem ntau siv Dongqingshi, mullite, spodumene, thiab hlau alloys raws li cov neeg nqa khoom, nrog lub peev xwm me me thiab tsim nyog rau kev thauj khoom muaj txiaj ntsig zoo. Honeycomb carrier muaj lub peev xwm ua kom sov me me, ua kom sov ua haujlwm zoo, kev ua haujlwm ntawm lub zog, thiab kev ua haujlwm ntawm kev lag luam, thiab tam sim no tau siv dav los ua tus nqa khoom. Txawm hais tias cov txheej txheem kev faib tawm raws li cov duab ntawm cov catalysts yog qhov yooj yim, muaj pes tsawg leeg ntawm catalysts, tshwj xeeb tshaj yog cov khoom siv, tsis tuaj yeem hais meej meej.
Yog tias cov pab pawg ua haujlwm ntawm cov catalysts txawv,tsawg ntiaj tebcatalysts tuaj yeem muab faib ua ob hom:tsawg ntiaj tebBase hlau oxide catalysts thiab tsis tshua muaj lub ntiaj teb puag hlau oxide catalysts nrog cov lej ntawm cov hlau tseem ceeb catalysts. Cov qub yog ib hom catalyst feem ntau siv tam sim no, uas muaj kev ua kom huv si zoo ntawm CO thiab HC, tab sis me ntsis kev ua kom huv si tsis zoo ntawm NOx. Lub tom kawg muaj qhov zoo purification nyhuv ntawm NOx, yog li nws yuav yog lub ntsiab kev loj hlob ntawm tus Tsov tus tw roj purification catalysts nyob rau hauv Tuam Tshoj.
Post lub sij hawm: Oct-12-2023