Umwuka wa Oxidation
Nkibisekuruza byambere, catisale ya Pt na Pd ikoreshwa mumahanga.Nyamara, catalizator irashobora kugenzura gusa imyuka yangiza imyuka ya karubone na hydrocarbone, bityo bita / inzira ebyiri zeru zero.Kuva mu myaka ya za 1980, guverinoma ihuriweho na Leta zunze ubumwe z’Amerika yazamuye igipimo cy’imyuka ihumanya ikirere cya NOX ku binyabiziga, ku buryo izo catalizator zidashobora kuzuza ibipimo kandi bikavaho buhoro buhoro.
Inzira eshatu
Icyiciro I.
Nkuko imyuka ihumanya ikirere ya NOX imaze kunozwa, catalizike ya Pt na Rh yagaragaye nkuko ibihe bisabwa.Iyi catalizator irashobora kweza icyarimwe monoxide ya karubone, hydrocarbone na okiside ya azote, bityo ikaba yitwa cataliste-zero-eshatu Nubushakashatsi bwa / butatu-0.Nyamara, iyi catalizator isaba umubare munini wibyuma byagaciro nka Pt na Rh;Birahenze kandi bikunda kuyobora uburozi.Kubwibyo, ntibikwiye kubinyabiziga bikoresha lisansi iyobowe.
Icyiciro cya II:
Pt na Rh bisimburwa igice na Pd kugirango bigabanye ibiciro bya catalizator.Tegura / inzira-eshatu 0 catalizator hamwe na Pt, Rh, Pd nkumubiri nyamukuru.Irashobora kweza CO, HC na OYA icyarimwe.Ibyiza byayo nibikorwa byinshi, ingaruka nziza zo kwezwa, kuramba, ariko igiciro kinini.Ikoreshwa cyane mu mahanga;
Icyiciro cya gatatu:
Cataliste yose.Icyitegererezo cyingirakamaro gifite ibyiza byo kweza icyarimwe CO, HC na NOX, igiciro gito, ubushyuhe bwo hejuru bwumuriro nubushyuhe bwihuse.
Gusa mugucunga neza igipimo cya lisansi yumwuka mwidirishya rifunganye (muri rusange 14.7 ± 0.25) hafi yikigereranyo cya lisansi yumuriro wa peteroli irashobora guhumanya icyarimwe.
Igihe cyo kohereza: Ugushyingo-18-2022