I le taimi nei, e tele ituaiga oeleele seaseafa'amamāina fa'amamafa na fa'atupuina ma fa'aogaina, ma o latou fa'avasegaga e eseese fo'i. O se faʻavasegaga faigofie ma faʻaogaina e faʻavae i luga o foliga o le catalyst, lea e mafai ona vaevaeina i ni ituaiga se lua: granular ma honeycomb. E masani ona faʻaaogaina faʻamaʻi faʻapitoa γ- Al2O3 o se ave faʻatau ma le tele o le uta gafatia, lea e mafai ona utaina le 10% i le 20%eleele seaseama isi oxide u'amea faavae. E lelei le tete'e o a'afiaga, ae o lona fa'asao e maualuga, e a'afia ai lona malosi ma lona tamaoaiga. E masani ona faʻaogaina e faʻapipiʻi faʻapipiʻi le faʻapipiʻi le Dongqingshi, mullite, spodumene, ma uʻamea uʻamea e fai ma ave, faʻatasi ai ma le laʻititi o le utaina ma talafeagai mo le utaina o metala taua. O loʻo i ai i le faʻapipiʻi o le meli o loʻo i ai se laʻititi laʻititi o le vevela, faʻaleleia lelei o le mafanafana, faʻaogaina o le eletise, ma le faʻaleleia o le tamaoaiga, ma o loʻo faʻaaogaina lautele i le taimi nei e avea o se vaʻa. E ui lava o le faʻavasegaina o auala e faʻavae i luga o foliga o catalysts e faigofie, o le tuufaatasiga o catalysts, aemaise lava vaega galue, e le mafai ona faʻaalia manino.
Afai e ese le vaega o gaoioiga o catalysts,eleele seaseae mafai ona vaevaeina catalysts i ni ituaiga se lua:eleele seaseau'amea u'amea fa'avae fa'ato'aga ma fa'ato'aga fa'ameamea fa'avae u'amea fa'avae fa'atasi ma fa'asologa o aofa'i o fa'aupuga u'amea taua. O le mea muamua o se ituaiga o faʻamalosi e masani ona faʻaaogaina i le taimi nei, lea e iai sona aafiaga faʻamamaina lelei i le CO ma le HC, ae faʻaletonu laʻititi le faʻamamaina o le NOx. O le vaega mulimuli o loʻo i ai se aafiaga faʻamamaina lelei i luga ole NOx, o lea o le a avea ma taʻiala autu o le atinaʻeina o faʻamaʻi faʻamaʻaina o le siʻusiʻu i Saina.
Taimi meli: Oke-12-2023