He aha ka hana a ka mea hoʻololi catalytic?
ʻOi aku ka holomua o ka ʻōnaehana hoʻopau kaʻa o kēia wā ma mua o ka mea i loaʻa ʻoiai ʻelua mau makahiki i hala. No ka hoʻomaopopo ʻana he kumu nui o ka pollution honua ka kaʻa maʻamau, ua hoʻoholo ke aupuni US i ka Clean Air Act e koi ana i nā kaʻa a pau i hana ʻia ma hope o ia lā e loaʻa i ka catalytic converter hana, ma waena o nā mea koʻikoʻi. Noho kāu "pōkole" i loko o ka ʻōnaehana hoʻopau o kāu kaʻa, e holo mālie a hōʻemi i nā hoʻokuʻu ʻino.
He aha ka hana?
Hoʻokahi hana o ka mea hoʻololi catalytic: e hōʻemi i nā hoʻokuʻu ʻino i loko o ka exhaust o kāu kaʻa e hōʻemi i ka pollution. Hoʻohana ʻo ia i kahi catalyst (ʻoi aku ma mua o hoʻokahi) e hoʻohuli i nā kemika ʻino e like me carbon monoxide, hydrocarbons, a me nā oxides o ka nitrogen i mau mea ʻino ʻole. Hiki i ka catalyst ke hoʻokahi o ʻekolu metala, a i ʻole hui pū ʻia o ia mau mea:
- Paʻapala
- Palani
- Rhodium
Ke hoʻohui nei kekahi mau mea hoʻololi catalytic i ke gula i ka hui ʻana no ka mea ʻoi aku ka liʻiliʻi ma mua o nā metala ʻē aʻe ʻekolu a hiki ke hāʻawi i ka oxidation ʻoi aku ka maikaʻi no kekahi mau kemika.
He aha ka oxidation?
Hoʻohana ʻia ʻo Oxidation ma kēia ʻano ʻo ke ʻano o ka "puhi". ʻO ka mea nui, ua wela ka catalyst i nā wela kiʻekiʻe loa. ʻO kēia mau mahana, i hui pū ʻia me nā waiwai kūʻokoʻa o nā metala i hoʻohana ʻia e like me nā catalysts, e hana i nā loli kemika i nā mea makemake ʻole. Ma ka hoʻololi ʻana i ka haku mele, lilo lākou i mea pōʻino.
Lilo ke kalapona monoxide (poisonous) i carbon dioxide. Hoʻokaʻawale ʻia nā ʻokikene Nitrogen i ka nitrogen a me ka oxygen, ʻelua mau mea kūlohelohe i ka lewa. Hoʻololi ʻia nā hydrocarbons i koe mai ka wahie i puhi ʻole ʻia i wai a me carbon dioxide.
