Isifinyezo sezincwadi zomhlaba ezingavamile ngo-2023 (1)

Isifinyezo sezincwadi zomhlaba ezingavamile ngo-2023 (1)

Ukusetshenziswa kwe-Rare Earth ekuhlanzweni kwe-Gasoline Vehicle Exhaust

Ekupheleni kuka-2021, iChina inezimoto ezingaphezu kwezigidi ezingu-300, izimoto zikaphethiloli ezingaphezu kuka-90%, okuwuhlobo lwezimoto ezibaluleke kakhulu eChina. Ukuze kubhekwane nezinto ezingcolile ezivamile ezifana nama-nitrogen oxides (NOx), ama-hydrocarbon (HC) kanye ne-carbon monoxide (CO) kugesi wemoto kaphethiloli, "indlela emithathu ye-catalyst", ubuchwepheshe obuyingqopha-mlando bokuphuma kwezimoto zikaphethiloli, senziwe. , kusetshenziswe futhi kuthuthukiswe ngokuqhubekayo. Ubuchwepheshe obusha obudumile be-petroli in-cylinder direct injection (GDI) buzoholela ekukhishweni okuphawulekayo kwe-particulate pollutant (PM), okuholela ekukhiqizeni ubuchwepheshe be-petrol particulate filter (GPF). Ukuqaliswa kobuchwepheshe obungenhla kuncike kakhulu noma kancane ekubambeni iqhaza kwensiza yamasu yaseShayina - umhlaba ongavamile. Leli phepha liqale libukeza ukuthuthukiswa kobuchwepheshe obuhlukahlukene bokuhlanza imfucumfucu yezimoto zikaphethiloli, bese lihlaziya izindlela ezithile zokusetshenziswa kanye nemiphumela yezinto ezingavamile zomhlaba (ikakhulukazi i-cerium dioxide) ngezindlela ezintathu zokulondoloza umoya-mpilo, isithwali se-catalyst/noble metal stabilizer kanye nemoto kaphethiloli. isihlungi sezinhlayiyana. Kungabonakala ukuthi ngokuthuthukiswa kanye nokuphindaphinda kwezobuchwepheshe kwezinto ezintsha zomhlaba ezingavamile, ubuchwepheshe besimanje bokuhlanza imoto kaphethiloli buya busebenza kahle futhi bushibhile. Okokugcina, leli phepha libheke phambili ekuthuthukisweni kwezinto ezingavamile zomhlaba zokuhlanza imfucumfucu yezimoto zikaphethiloli, futhi lihlaziya amaphuzu ayisihluthulelo nanzima okuthuthukiswa kwesikhathi esizayo kwezimboni ezihlobene.

Ijenali ye-China Rare Earth, eyashicilelwa okokuqala ku-inthanethi: February 2023

Umbhali: Liu Shuang, Wang Zhiqiang