ʻEkolu ala catalyst

Māhele I

I ka hoʻomaikaʻi ʻana i ke kūlana hoʻokuʻu o NOX, ua puka mai nā catalysts Pt a me Rh e like me ka manawa e pono ai.Hiki i kēia catalyst ke hoʻomaʻemaʻe i ka carbon monoxide, hydrocarbons a me nā oxides o ka nitrogen i ka manawa like, no laila ua kapa ʻia ʻo ia ʻekolu ala zero catalyst ʻO kēia ka noiʻi o / ʻekolu-ala 0 catalyst.Eia nō naʻe, pono kēia catalyst i ka nui o nā metala makamae e like me Pt ​​a me Rh;He pipiʻi a maʻalahi hoʻi i ka make kepau.No laila, ʻaʻole kūpono ia no nā kaʻa e hoʻohana ana i ka ʻaila alakaʻi.

Māhele II:

Hoʻololi ʻia ʻo Pt a me Rh e Pd e hoʻemi i ke kumukūʻai o ka catalyst.E hoʻomākaukau/ʻekolu-ala 0 catalyst me Pt, Rh, Pd ke kino nui.Hiki iā ia ke hoʻomaʻemaʻe iā CO, HC a me NO i ka manawa like.ʻO kāna mau mea maikaʻi he hana kiʻekiʻe, ka hopena hoʻomaʻemaʻe maikaʻi, ke ola lōʻihi, akā ke kumukūʻai kiʻekiʻe.Hoʻohana nui ʻia ia ma waho;

ʻO ke kolu o ka pae:

ʻO ka palladium catalyst.Loaʻa i ke kumu hoʻohālike nā pono o ka hoʻomaʻemaʻe like ʻana o CO, HC a me NOX, ke kumu kūʻai haʻahaʻa, ke kūpaʻa wela wela a me nā hiʻohiʻona māmā.

Ma ka hoʻomalu pono ʻana i ka lākiō ea-wahie i loko o ka puka makani haiki (maʻamau 14.7 ± 0.25) kokoke i ka ratio theoretical ea-wahie hiki ke hoʻomaʻemaʻe ʻia nā mea haumia ʻekolu i ka manawa like.