Yenzani isiguquli se-catalytic?

Uhlelo lwesimanje lwe-exhaust lwezimoto luthuthuke kakhulu kunalolo olwalutholakala emashumini ambalwa eminyaka adlule. Ngokuqaphela ukuthi imoto evamile iwumthombo omkhulu wokungcola komhlaba wonke, uhulumeni wase-US waphasisa uMthetho Womoya Ohlanzekile othi zonke izimoto ezikhiqizwa ngemva kwalolo suku zibe nesiguquli esisebenzayo esisebenzayo, phakathi kwezinye izinto ezibalulekile. "Ikati" lakho lihlala kusistimu yokukhipha umoya wemoto yakho, lisebenza ngokuthula futhi linciphisa ukukhishwa kwekhabhoni eyingozi.

Yini okufanele yenziwe?

Isiguquli se-catalytic sinomsebenzi owodwa: ukunciphisa ukukhishwa okuyingozi kugesi wemoto yakho ukuze unciphise ukungcola. Isebenzisa i-catalyst (empeleni engaphezu kweyodwa) ukuguqula amakhemikhali ayingozi njenge-carbon monoxide, ama-hydrocarbon, nama-oxide e-nitrogen abe izinto ezingenabungozi. I-catalyst ingaba yinye yezinsimbi ezintathu, noma inhlanganisela yazo:

• I-Platinum
• I-Palladium
• I-Rhodium

Abanye abakhiqizi be-catalytic converter manje sebengeza igolide kungxube ngoba empeleni ishibhile kunezinye izinsimbi ezintathu futhi banganikeza i-oxidation engcono kwamanye amakhemikhali.

Yini i-oxidation?

I-oxidation isetshenziswe kulo mqondo ukuze isho "ukuvutha". Empeleni, i-catalyst ishiselwa kumazinga okushisa aphezulu kakhulu. Lawa mazinga okushisa, kuhlanganiswe nezimpawu eziyingqayizivele zezinsimbi ezisetshenziswa njengezisusa, kudala izinguquko zamakhemikhali ezintweni ezingafuneki. Ngokushintsha ukwakheka kwamakhemikhali, ababi nangozi.

I-carbon monoxide (enobuthi) iphenduka i-carbon dioxide. Ama-nitrogen oxide ahlukaniswa abe yi-nitrogen nomoya-mpilo, izakhi ezimbili ezenzeka ngokwemvelo emkhathini noma kunjalo. Ama-hydrocarbon asala kuphethiloli ongashisiwe aguqulwa abe amanzi nesikhutha.