{"id":1096,"date":"2025-07-04T05:56:45","date_gmt":"2025-07-04T05:56:45","guid":{"rendered":"https:\/\/3waycatalyst.com\/?p=1096"},"modified":"2025-07-14T06:29:53","modified_gmt":"2025-07-14T06:29:53","slug":"three-way-catalytic-converter-how-does-it-work","status":"publish","type":"post","link":"https:\/\/3waycatalyst.com\/vi\/three-way-catalytic-converter-how-does-it-work\/","title":{"rendered":"Three-way catalytic converter \u2013 how does it work?"},"content":{"rendered":"<h2 class=\"wp-block-heading\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u l\u00e0 g\u00ec?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ecbnh ngh\u0129a v\u00e0 T\u1ed5ng quan<\/h3>\n\n\n\n<p>M\u1ed8T&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu c\u1ee7a h\u1ec7 th\u1ed1ng \u1ed1ng x\u1ea3 \u00f4 t\u00f4 hi\u1ec7n \u0111\u1ea1i, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i do&nbsp;<strong>\u0111\u1ed9ng c\u01a1 \u0111\u1ed1t trong<\/strong>. Thi\u1ebft b\u1ecb n\u00e0y \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c ki\u1ec3m so\u00e1t \u00f4 nhi\u1ec5m kh\u00f4ng kh\u00ed b\u1eb1ng c\u00e1ch chuy\u1ec3n \u0111\u1ed5i c\u00e1c lo\u1ea1i kh\u00ed \u0111\u1ed9c h\u1ea1i, ch\u1eb3ng h\u1ea1n nh\u01b0&nbsp;<strong>cacbon monoxit<\/strong>&nbsp;(CO),&nbsp;<strong>hydrocarbon<\/strong>&nbsp;(HC), v\u00e0&nbsp;<strong>oxit nit\u01a1<\/strong>&nbsp;(<strong>KH\u00d4NG\u2093<\/strong>), th\u00e0nh c\u00e1c ch\u1ea5t \u00edt \u0111\u1ed9c h\u1ea1i h\u01a1n. Nh\u1edd \u0111\u00f3, n\u00f3 gi\u00fap \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n kh\u00ed th\u1ea3i theo quy \u0111\u1ecbnh v\u00e0 gi\u1ea3m t\u00e1c \u0111\u1ed9ng c\u1ee7a xe \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng: C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a ch\u1ea5t x\u00fac t\u00e1c ba chi\u1ec1u<\/h2>\n\n\n\n<p>C\u00e1c&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;bao g\u1ed3m m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n ch\u00ednh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ch\u1ea5t n\u1ec1n x\u00fac t\u00e1c:<\/strong>\u00a0\u0110\u00e2y th\u01b0\u1eddng l\u00e0 m\u1ed9t\u00a0<strong>g\u1ed1m s\u1ee9<\/strong>\u00a0ho\u1eb7c c\u1ea5u tr\u00fac t\u1ed5 ong kim lo\u1ea1i cung c\u1ea5p di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t l\u1edbn \u0111\u1ec3 c\u00e1c ph\u1ea3n \u1ee9ng x\u00fac t\u00e1c x\u1ea3y ra.<\/li>\n\n\n\n<li><strong>Kim lo\u1ea1i qu\u00fd:<\/strong>\u00a0<strong>B\u1ea1ch kim<\/strong>,\u00a0<strong>paladi<\/strong>, V\u00e0\u00a0<strong>rhodi<\/strong>\u00a0l\u00e0 nh\u1eefng kim lo\u1ea1i ch\u00ednh \u0111\u01b0\u1ee3c ph\u1ee7 tr\u00ean b\u1ec1 m\u1eb7t. Nh\u1eefng kim lo\u1ea1i n\u00e0y ho\u1ea1t \u0111\u1ed9ng nh\u01b0 ch\u1ea5t x\u00fac t\u00e1c gi\u00fap t\u0103ng t\u1ed1c c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc m\u00e0 kh\u00f4ng b\u1ecb ti\u00eau th\u1ee5.<\/li>\n\n\n\n<li><strong>L\u01b0u l\u01b0\u1ee3ng kh\u00ed th\u1ea3i:<\/strong>\u00a0C\u00e1c\u00a0<strong>kh\u00ed th\u1ea3i<\/strong>\u00a0ch\u1ea3y qua ch\u1ea5t x\u00fac t\u00e1c, n\u01a1i n\u00f3 ti\u1ebfp x\u00fac v\u1edbi c\u00e1c kim lo\u1ea1i qu\u00fd, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc nh\u1eb1m gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Ch\u1ea5t x\u00fac t\u00e1c ba chi\u1ec1u l\u00e0m gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n\n\n\n<p>C\u00e1c&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho ba ph\u1ea3n \u1ee9ng thi\u1ebft y\u1ebfu:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Qu\u00e1 tr\u00ecnh oxy h\u00f3a cacbon monoxit (CO):<\/strong>\u00a0<strong>Cacbon monoxit<\/strong>\u00a0(CO), m\u1ed9t lo\u1ea1i kh\u00ed \u0111\u1ed9c \u0111\u01b0\u1ee3c t\u1ea1o ra do qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y nhi\u00ean li\u1ec7u kh\u00f4ng ho\u00e0n to\u00e0n, b\u1ecb oxy h\u00f3a th\u00e0nh\u00a0<strong>kh\u00ed cacbonic<\/strong>\u00a0(CO\u2082).<\/li>\n\n\n\n<li>2CO + O\u2082 \u2192 2CO\u2082<\/li>\n\n\n\n<li><strong>Qu\u00e1 tr\u00ecnh oxy h\u00f3a hydrocarbon (HC):<\/strong>\u00a0<strong>Hydrocacbon ch\u01b0a ch\u00e1y<\/strong>\u00a0(HC), g\u00f3p ph\u1ea7n g\u00e2y ra kh\u00f3i b\u1ee5i v\u00e0 \u00f4 nhi\u1ec5m kh\u00f4ng kh\u00ed, \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh\u00a0<strong>kh\u00ed cacbonic<\/strong>\u00a0(CO\u2082) v\u00e0\u00a0<strong>N\u01b0\u1edbc<\/strong>\u00a0(H\u2082O).<\/li>\n\n\n\n<li>CxHy + (x + y\/4)O\u2082 \u2192 xCO\u2082 + y\/2 H\u2082O<\/li>\n\n\n\n<li><strong>Gi\u1ea3m oxit nit\u01a1 (NO\u2093):<\/strong>\u00a0<strong>Oxit nit\u01a1<\/strong>\u00a0(<strong>KH\u00d4NG\u2093<\/strong>), g\u00f3p ph\u1ea7n g\u00e2y ra s\u01b0\u01a1ng m\u00f9 v\u00e0 m\u01b0a axit, \u0111\u01b0\u1ee3c gi\u1ea3m xu\u1ed1ng m\u1ee9c v\u00f4 h\u1ea1i\u00a0<strong>nit\u01a1<\/strong>\u00a0(N\u2082) v\u00e0\u00a0<strong>\u00f4xy<\/strong>\u00a0(O\u2082).<\/li>\n\n\n\n<li>2NO\u2093 \u2192 N\u2082 + O\u2082<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Ba ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n: Oxy h\u00f3a, Kh\u1eed v\u00e0 L\u1ecdc<\/h2>\n\n\n\n<p>C\u00e1c&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;ho\u1ea1t \u0111\u1ed9ng th\u00f4ng qua ba ch\u1ee9c n\u0103ng ch\u00ednh:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Qu\u00e1 tr\u00ecnh oxy h\u00f3a:<\/strong>\u00a0Qu\u00e1 tr\u00ecnh n\u00e0y chuy\u1ec3n \u0111\u1ed5i c\u00e1c lo\u1ea1i kh\u00ed \u0111\u1ed9c h\u1ea1i nh\u01b0\u00a0<strong>cacbon monoxit<\/strong>\u00a0V\u00e0\u00a0<strong>hydrocarbon<\/strong>\u00a0th\u00e0nh nh\u1eefng ch\u1ea5t \u00edt g\u00e2y h\u1ea1i h\u01a1n nh\u01b0\u00a0<strong>kh\u00ed cacbonic<\/strong>\u00a0V\u00e0\u00a0<strong>N\u01b0\u1edbc<\/strong>.<\/li>\n\n\n\n<li><strong>S\u1ef1 gi\u1ea3m b\u1edbt:<\/strong>\u00a0<strong>Oxit nit\u01a1<\/strong>\u00a0(<strong>KH\u00d4NG\u2093<\/strong>) \u0111\u01b0\u1ee3c gi\u1ea3m xu\u1ed1ng m\u1ee9c v\u00f4 h\u1ea1i\u00a0<strong>nit\u01a1<\/strong>\u00a0V\u00e0\u00a0<strong>\u00f4xy<\/strong>.<\/li>\n\n\n\n<li><strong>L\u1ecdc:<\/strong>\u00a0Trong khi ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i l\u00e0 chuy\u1ec3n \u0111\u1ed5i h\u00f3a h\u1ecdc, n\u00f3 c\u0169ng ph\u1ee5c v\u1ee5\u00a0<strong>l\u1ecdc<\/strong>\u00a0vai tr\u00f2 b\u1eb1ng c\u00e1ch b\u1eaby c\u00e1c h\u1ea1t r\u1eafn trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong \u0111\u1ed9ng c\u01a1 diesel (m\u1eb7c d\u00f9\u00a0<strong>ch\u1ea5t x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>\u00a0ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111\u1ed9ng c\u01a1 x\u0103ng).<\/li>\n<\/ol>\n\n\n\n<p>Ba ch\u1ee9c n\u0103ng n\u00e0y ho\u1ea1t \u0111\u1ed9ng c\u00f9ng nhau \u0111\u1ec3 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng c\u1ee7a&nbsp;<strong>kh\u00ed th\u1ea3i \u00f4 t\u00f4<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c ch\u1ee9c n\u0103ng n\u00e0y ph\u1ed1i h\u1ee3p v\u1edbi nhau nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m<\/h2>\n\n\n\n<p>C\u00e1c&nbsp;<strong>ch\u1ea5t x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch duy tr\u00ec s\u1ef1 c\u00e2n b\u1eb1ng tinh t\u1ebf gi\u1eefa&nbsp;<strong>s\u1ef1 oxy h\u00f3a<\/strong>&nbsp;c\u1ee7a&nbsp;<strong>cacbon monoxit<\/strong>&nbsp;V\u00e0&nbsp;<strong>hydrocarbon<\/strong>&nbsp;v\u00e0&nbsp;<strong>s\u1ef1 gi\u1ea3m b\u1edbt<\/strong>&nbsp;c\u1ee7a&nbsp;<strong>oxit nit\u01a1<\/strong>. Hi\u1ec7u qu\u1ea3 c\u1ee7a nh\u1eefng ph\u1ea3n \u1ee9ng n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c duy tr\u00ec m\u1ed9t&nbsp;<strong>t\u1ef7 l\u1ec7 kh\u00f4ng kh\u00ed-nhi\u00ean li\u1ec7u h\u00f3a h\u1ecdc<\/strong>, trong \u0111\u00f3 l\u01b0\u1ee3ng nhi\u00ean li\u1ec7u c\u00e2n b\u1eb1ng ho\u00e0n h\u1ea3o v\u1edbi l\u01b0\u1ee3ng oxy. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o \u0111i\u1ec1u ki\u1ec7n t\u1ed1i \u01b0u cho c\u1ea3 ba ph\u1ea3n \u1ee9ng x\u1ea3y ra c\u00f9ng l\u00fac.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5, trong&nbsp;<strong>s\u1ef1 gi\u1ea3m b\u1edbt<\/strong>&nbsp;giai \u0111o\u1ea1n,&nbsp;<strong>rhodi<\/strong>&nbsp;\u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i&nbsp;<strong>KH\u00d4NG\u2093<\/strong>&nbsp;v\u00e0o trong&nbsp;<strong>nit\u01a1<\/strong>&nbsp;V\u00e0&nbsp;<strong>\u00f4xy<\/strong>, trong khi&nbsp;<strong>b\u1ea1ch kim<\/strong>&nbsp;V\u00e0&nbsp;<strong>paladi<\/strong>&nbsp;ch\u1ee7 y\u1ebfu ch\u1ecbu tr\u00e1ch nhi\u1ec7m oxy h\u00f3a&nbsp;<strong>cacbon monoxit<\/strong>&nbsp;V\u00e0&nbsp;<strong>hydrocarbon<\/strong>. C\u00e1c qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a&nbsp;<strong>kim lo\u1ea1i qu\u00fd<\/strong>, ho\u1ea1t \u0111\u1ed9ng nh\u01b0 ch\u1ea5t x\u00fac t\u00e1c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vai tr\u00f2 c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c trong \u0111\u1ed9ng c\u01a1 \u0111\u1ed1t trong<\/h2>\n\n\n\n<p>Trong m\u1ed9t&nbsp;<strong>\u0111\u1ed9ng c\u01a1 \u0111\u1ed1t trong<\/strong>,&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c<\/strong>&nbsp;l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a&nbsp;<strong>h\u1ec7 th\u1ed1ng x\u1ea3<\/strong>, chuy\u1ec3n \u0111\u1ed5i c\u00f3 h\u1ea1i&nbsp;<strong>kh\u00ed th\u1ea3i<\/strong>&nbsp;th\u00e0nh c\u00e1c h\u1ee3p ch\u1ea5t an to\u00e0n h\u01a1n. Nh\u01b0&nbsp;<strong>kh\u00ed th\u1ea3i<\/strong>&nbsp;\u0111i qua&nbsp;<strong>ch\u1ea5t x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>, c\u00e1c ph\u1ea3n \u1ee9ng x\u00fac t\u00e1c di\u1ec5n ra, l\u00e0m gi\u1ea3m c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m c\u00f3 h\u1ea1i. Qu\u00e1 tr\u00ecnh n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o xe c\u1ed9 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n kh\u00ed th\u1ea3i nghi\u00eam ng\u1eb7t v\u00e0 g\u00f3p ph\u1ea7n gi\u1ea3m \u00f4 nhi\u1ec5m kh\u00f4ng kh\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y v\u00e0 ki\u1ec3m so\u00e1t kh\u00ed th\u1ea3i<\/h2>\n\n\n\n<p>Trong su\u1ed1t&nbsp;<strong>qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y<\/strong>&nbsp;trong \u0111\u1ed9ng c\u01a1, nhi\u00ean li\u1ec7u ph\u1ea3n \u1ee9ng v\u1edbi oxy \u0111\u1ec3 t\u1ea1o ra n\u0103ng l\u01b0\u1ee3ng, nh\u01b0ng n\u00f3 c\u0169ng t\u1ea1o ra nhi\u1ec1u&nbsp;<strong>ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m<\/strong>&nbsp;gi\u1ed1ng&nbsp;<strong>cacbon monoxit<\/strong>,&nbsp;<strong>hydrocarbon<\/strong>, V\u00e0&nbsp;<strong>oxit nit\u01a1<\/strong>. C\u00e1c&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;\u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m n\u00e0y th\u00e0nh c\u00e1c lo\u1ea1i kh\u00ed \u00edt \u0111\u1ed9c h\u1ea1i h\u01a1n tr\u01b0\u1edbc khi th\u1ea3i v\u00e0o kh\u00ed quy\u1ec3n.<\/p>\n\n\n\n<p>B\u1eb1ng c\u00e1ch ki\u1ec3m so\u00e1t&nbsp;<strong>t\u1ef7 l\u1ec7 kh\u00f4ng kh\u00ed-nhi\u00ean li\u1ec7u<\/strong>, c\u00e1i&nbsp;<strong>h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd \u0111\u1ed9ng c\u01a1<\/strong>&nbsp;\u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u00ean trong&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c<\/strong>&nbsp;duy tr\u00ec tr\u1ea1ng th\u00e1i t\u1ed1i \u01b0u cho c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc, t\u1ea1o ra qu\u00e1 tr\u00ecnh x\u1ea3 s\u1ea1ch h\u01a1n v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c \u00f4 t\u00f4 ph\u00f9 h\u1ee3p v\u1edbi h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd \u0111\u1ed9ng c\u01a1 nh\u01b0 th\u1ebf n\u00e0o<\/h2>\n\n\n\n<p>C\u00e1c&nbsp;<strong>h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd \u0111\u1ed9ng c\u01a1<\/strong>&nbsp;(EMS) ho\u1ea1t \u0111\u1ed9ng song song v\u1edbi&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;\u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh hi\u1ec7u su\u1ea5t c\u1ee7a&nbsp;<strong>ph\u1ea3n \u1ee9ng x\u00fac t\u00e1c<\/strong>. C\u00e1c c\u1ea3m bi\u1ebfn nh\u01b0&nbsp;<strong>c\u1ea3m bi\u1ebfn oxy<\/strong>&nbsp;li\u00ean t\u1ee5c theo d\u00f5i&nbsp;<strong>h\u00e0m l\u01b0\u1ee3ng oxy<\/strong>&nbsp;trong kh\u00ed th\u1ea3i v\u00e0 g\u1eedi th\u00f4ng tin n\u00e0y \u0111\u1ebfn&nbsp;<strong>EMS<\/strong>. D\u1ef1a tr\u00ean d\u1eef li\u1ec7u n\u00e0y, EMS \u0111i\u1ec1u ch\u1ec9nh&nbsp;<strong>t\u1ef7 l\u1ec7 kh\u00f4ng kh\u00ed-nhi\u00ean li\u1ec7u<\/strong>&nbsp;\u0111\u1ec3 duy tr\u00ec m\u1ed9t&nbsp;<strong>t\u1ef7 l\u1ec7 l\u01b0\u1ee3ng<\/strong>&nbsp;c\u00e2n b\u1eb1ng, \u0111\u1ea3m b\u1ea3o r\u1eb1ng&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c<\/strong>&nbsp;ho\u1ea1t \u0111\u1ed9ng \u1edf hi\u1ec7u su\u1ea5t cao nh\u1ea5t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m ch\u00ednh m\u00e0 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u nh\u1eafm t\u1edbi l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p>C\u00e1c&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;nh\u1eafm m\u1ee5c ti\u00eau sau \u0111\u00e2y&nbsp;<strong>c\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m ch\u00ednh<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cacbon monoxit (CO):<\/strong>\u00a0M\u1ed9t lo\u1ea1i kh\u00ed kh\u00f4ng m\u00e0u, kh\u00f4ng m\u00f9i v\u00e0 c\u1ef1c k\u1ef3 \u0111\u1ed9c h\u1ea1i \u0111\u1ed1i v\u1edbi con ng\u01b0\u1eddi v\u00e0 \u0111\u1ed9ng v\u1eadt.<\/li>\n\n\n\n<li><strong>Hi\u0111rocacbon (HC):<\/strong>\u00a0C\u00e1c h\u1ea1t nhi\u00ean li\u1ec7u ch\u01b0a ch\u00e1y g\u00f3p ph\u1ea7n g\u00e2y ra kh\u00f3i b\u1ee5i v\u00e0 \u00f4 nhi\u1ec5m kh\u00f4ng kh\u00ed.<\/li>\n\n\n\n<li><strong>Oxit nit\u01a1 (NO\u2093):<\/strong>\u00a0C\u00e1c lo\u1ea1i kh\u00ed g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean s\u01b0\u01a1ng m\u00f9 v\u00e0 m\u01b0a axit, c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 h\u00f4 h\u1ea5p.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">T\u00e1c \u0111\u1ed9ng c\u1ee7a ch\u00fang \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng v\u00e0 s\u1ee9c kh\u1ecfe<\/h2>\n\n\n\n<p>C\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m m\u00e0&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;m\u1ee5c ti\u00eau c\u00f3 nghi\u00eam tr\u1ecdng&nbsp;<strong>t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng v\u00e0 s\u1ee9c kh\u1ecfe<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cacbon monoxit (CO)<\/strong>\u00a0c\u00f3 h\u1ea1i v\u00ec n\u00f3 l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng v\u1eadn chuy\u1ec3n oxy c\u1ee7a m\u00e1u, d\u1eabn \u0111\u1ebfn ng\u1ed9 \u0111\u1ed9c.<\/li>\n\n\n\n<li><strong>Hi\u0111rocacbon (HC)<\/strong>\u00a0g\u00f3p ph\u1ea7n v\u00e0o s\u1ef1 h\u00ecnh th\u00e0nh c\u1ee7a\u00a0<strong>s\u01b0\u01a1ng m\u00f9<\/strong>c\u00f3 th\u1ec3 g\u00e2y k\u00edch \u1ee9ng m\u1eaft, m\u0169i, h\u1ecdng v\u00e0 l\u00e0m tr\u1ea7m tr\u1ecdng th\u00eam c\u00e1c b\u1ec7nh v\u1ec1 \u0111\u01b0\u1eddng h\u00f4 h\u1ea5p.<\/li>\n\n\n\n<li><strong>Oxit nit\u01a1 (NO\u2093)<\/strong>\u00a0\u0111\u00f3ng g\u00f3p v\u00e0o\u00a0<strong>m\u01b0a axit<\/strong>, g\u00e2y h\u1ea1i cho h\u1ec7 sinh th\u00e1i d\u01b0\u1edbi n\u01b0\u1edbc, \u0111\u1ea5t v\u00e0 th\u1ea3m th\u1ef1c v\u1eadt, \u0111\u1ed3ng th\u1eddi c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 h\u00f4 h\u1ea5p \u1edf con ng\u01b0\u1eddi.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao kim lo\u1ea1i qu\u00fd l\u1ea1i quan tr\u1ecdng trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c?<\/h2>\n\n\n\n<p><strong>B\u1ea1ch kim<\/strong>,&nbsp;<strong>paladi<\/strong>, V\u00e0&nbsp;<strong>rhodi<\/strong>&nbsp;r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>. Nh\u1eefng c\u00e1i n\u00e0y&nbsp;<strong>kim lo\u1ea1i qu\u00fd<\/strong>&nbsp;ph\u1ee5c v\u1ee5 nh\u01b0 l\u00e0&nbsp;<strong>ch\u1ea5t x\u00fac t\u00e1c ho\u1ea1t \u0111\u1ed9ng<\/strong>&nbsp;t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c c\u1ea7n thi\u1ebft&nbsp;<strong>ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc<\/strong>&nbsp;\u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m c\u00f3 h\u1ea1i th\u00e0nh kh\u00ed v\u00f4 h\u1ea1i. Ch\u00fang kh\u00f4ng b\u1ecb ti\u00eau th\u1ee5 trong qu\u00e1 tr\u00ecnh n\u00e0y, cho ph\u00e9p ch\u00fang ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 theo th\u1eddi gian.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>B\u1ea1ch kim<\/strong>\u00a0V\u00e0\u00a0<strong>paladi<\/strong>\u00a0ch\u1ee7 y\u1ebfu ch\u1ecbu tr\u00e1ch nhi\u1ec7m cho\u00a0<strong>s\u1ef1 oxy h\u00f3a<\/strong>\u00a0c\u1ee7a\u00a0<strong>cacbon monoxit<\/strong>\u00a0V\u00e0\u00a0<strong>hydrocarbon<\/strong>.<\/li>\n\n\n\n<li><strong>Rhodium<\/strong>\u00a0l\u00e0 kim lo\u1ea1i ch\u1ee7 ch\u1ed1t trong\u00a0<strong>s\u1ef1 gi\u1ea3m b\u1edbt<\/strong>\u00a0c\u1ee7a\u00a0<strong>oxit nit\u01a1<\/strong>\u00a0v\u00e0o trong\u00a0<strong>nit\u01a1<\/strong>\u00a0V\u00e0\u00a0<strong>\u00f4xy<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>Nh\u1eefng kim lo\u1ea1i n\u00e0y c\u00f3 hi\u1ec7u qu\u1ea3 cao v\u00ec ch\u00fang cung c\u1ea5p b\u1ec1 m\u1eb7t l\u00fd t\u01b0\u1edfng \u0111\u1ec3 c\u00e1c ph\u1ea3n \u1ee9ng x\u1ea3y ra, cho ph\u00e9p chuy\u1ec3n \u0111\u1ed5i c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m \u1edf nhi\u1ec7t \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">D\u00f2ng kh\u00ed th\u1ea3i ch\u1ea3y qua b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ba chi\u1ec1u nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n\n\n\n<p>C\u00e1c&nbsp;<strong>l\u01b0u l\u01b0\u1ee3ng kh\u00ed th\u1ea3i<\/strong>&nbsp;th\u00f4ng qua&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;l\u00e0 r\u1ea5t quan tr\u1ecdng cho ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3. Nh\u01b0&nbsp;<strong>kh\u00ed th\u1ea3i<\/strong>&nbsp;tho\u00e1t kh\u1ecfi&nbsp;<strong>\u0111\u1ed9ng c\u01a1<\/strong>, h\u1ecd b\u01b0\u1edbc v\u00e0o&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c<\/strong>&nbsp;n\u01a1i ch\u00fang \u0111i qua b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c ph\u1ee7 ch\u1ea5t x\u00fac t\u00e1c. Kh\u00ed th\u1ea3i ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c ph\u1ea3n \u1ee9ng x\u00fac t\u00e1c, trong \u0111\u00f3&nbsp;<strong>cacbon monoxit<\/strong>&nbsp;V\u00e0&nbsp;<strong>hydrocarbon<\/strong>&nbsp;b\u1ecb oxy h\u00f3a v\u00e0&nbsp;<strong>oxit nit\u01a1<\/strong>&nbsp;\u0111\u01b0\u1ee3c gi\u1ea3m b\u1edbt.<\/p>\n\n\n\n<p>C\u00e1c&nbsp;<strong>\u0111\u1ed9ng l\u1ef1c d\u00f2ng kh\u00ed th\u1ea3i<\/strong>&nbsp;v\u00e0 nhi\u1ec7t \u0111\u1ed9 l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi hi\u1ec7u su\u1ea5t c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i. L\u01b0u l\u01b0\u1ee3ng \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3&nbsp;<strong>ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m<\/strong>&nbsp;trong&nbsp;<strong>d\u00f2ng kh\u00ed th\u1ea3i<\/strong>&nbsp;\u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao (do \u0111\u1ed9ng c\u01a1 t\u1ea1o ra) l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 ch\u1ea5t x\u00fac t\u00e1c \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c qu\u1ea3n l\u00fd kh\u00ed th\u1ea3i hi\u1ec7u qu\u1ea3 \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a ch\u1ee9c n\u0103ng chuy\u1ec3n \u0111\u1ed5i<\/h2>\n\n\n\n<p><strong>Qu\u1ea3n l\u00fd kh\u00ed th\u1ea3i hi\u1ec7u qu\u1ea3<\/strong>&nbsp;l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft cho hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u c\u1ee7a&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>. B\u1ea5t k\u1ef3 s\u1ef1 t\u1eafc ngh\u1ebdn ho\u1eb7c h\u1ea1n ch\u1ebf n\u00e0o trong&nbsp;<strong>h\u1ec7 th\u1ed1ng x\u1ea3<\/strong>&nbsp;c\u00f3 th\u1ec3 g\u00e2y ra m\u1ed9t&nbsp;<strong>\u00e1p su\u1ea5t ng\u01b0\u1ee3c<\/strong>, l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i. Ngo\u00e0i ra,&nbsp;<strong>l\u01b0u l\u01b0\u1ee3ng kh\u00ed th\u1ea3i hi\u1ec7u qu\u1ea3<\/strong>&nbsp;\u0111\u1ea3m b\u1ea3o r\u1eb1ng&nbsp;<strong>ch\u1ea5t x\u00fac t\u00e1c<\/strong>&nbsp;c\u00f3 th\u1ec3 x\u1eed l\u00fd to\u00e0n b\u1ed9 kh\u1ed1i l\u01b0\u1ee3ng&nbsp;<strong>kh\u00ed th\u1ea3i<\/strong>, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 gi\u1ea3m thi\u1ec3u&nbsp;<strong>kh\u00ed th\u1ea3i<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110i\u1ec3m kh\u00e1c bi\u1ec7t gi\u1eefa b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u v\u00e0 c\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i kh\u00e1c l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p>Kh\u00f4ng gi\u1ed1ng nh\u01b0&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c hai chi\u1ec1u<\/strong>, ch\u1ec9 th\u1ef1c hi\u1ec7n ph\u1ea3n \u1ee9ng oxy h\u00f3a,&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;c\u00f3 kh\u1ea3 n\u0103ng c\u1ea3 hai&nbsp;<strong>s\u1ef1 oxy h\u00f3a<\/strong>&nbsp;V\u00e0&nbsp;<strong>s\u1ef1 gi\u1ea3m b\u1edbt<\/strong>&nbsp;ph\u1ea3n \u1ee9ng. \u0110i\u1ec1u n\u00e0y l\u00e0m cho ch\u00fang hi\u1ec7u qu\u1ea3 h\u01a1n nhi\u1ec1u trong vi\u1ec7c gi\u1ea3m nhi\u1ec1u lo\u1ea1i ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m h\u01a1n. Vi\u1ec7c b\u1ed5 sung&nbsp;<strong>rhodi<\/strong>&nbsp;trong&nbsp;<strong>h\u1ec7 th\u1ed1ng ba chi\u1ec1u<\/strong>&nbsp;cho ph\u00e9p&nbsp;<strong>s\u1ef1 gi\u1ea3m b\u1edbt<\/strong>&nbsp;c\u1ee7a&nbsp;<strong>oxit nit\u01a1<\/strong>, m\u1ed9t qu\u00e1 tr\u00ecnh kh\u00f4ng th\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c trong&nbsp;<strong>h\u1ec7 th\u1ed1ng hai chi\u1ec1u<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c hai chi\u1ec1u so v\u1edbi ba chi\u1ec1u<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c hai chi\u1ec1u:<\/strong>\u00a0Nh\u1eefng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i n\u00e0y<\/li>\n<\/ul>\n\n\n\n<p>ch\u1ec9 th\u1ef1c hi\u1ec7n&nbsp;<strong>s\u1ef1 oxy h\u00f3a<\/strong>&nbsp;ph\u1ea3n \u1ee9ng (t\u1ee9c l\u00e0 ch\u00fang chuy\u1ec3n \u0111\u1ed5i&nbsp;<strong>cacbon monoxit<\/strong>&nbsp;V\u00e0&nbsp;<strong>hydrocarbon<\/strong>&nbsp;v\u00e0o trong&nbsp;<strong>kh\u00ed cacbonic<\/strong>&nbsp;V\u00e0&nbsp;<strong>N\u01b0\u1edbc<\/strong>).<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u:<\/strong>\u00a0Nh\u1eefng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i n\u00e0y c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n\u00a0<strong>s\u1ef1 oxy h\u00f3a<\/strong>\u00a0(c\u1ee7a\u00a0<strong>CO<\/strong>\u00a0V\u00e0\u00a0<strong>HC<\/strong>) V\u00e0\u00a0<strong>s\u1ef1 gi\u1ea3m b\u1edbt<\/strong>\u00a0(c\u1ee7a\u00a0<strong>KH\u00d4NG\u2093<\/strong>) ph\u1ea3n \u1ee9ng, l\u00e0m cho ch\u00fang hi\u1ec7u qu\u1ea3 h\u01a1n nhi\u1ec1u trong vi\u1ec7c gi\u1ea3m c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m c\u00f3 h\u1ea1i hi\u1ec7n di\u1ec7n trong\u00a0<strong>kh\u00ed th\u1ea3i \u0111\u1ed9ng c\u01a1 x\u0103ng<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">L\u1ee3i \u00edch c\u1ee7a h\u1ec7 th\u1ed1ng ba chi\u1ec1u cho \u0111\u1ed9ng c\u01a1 x\u0103ng<\/h2>\n\n\n\n<p>C\u00e1c&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t cho&nbsp;<strong>\u0111\u1ed9ng c\u01a1 x\u0103ng<\/strong>. N\u00f3 mang l\u1ea1i m\u1ed9t s\u1ed1 l\u1ee3i th\u1ebf, bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gi\u1ea3m ph\u00e1t th\u1ea3i \u0111\u1ed9c h\u1ea1i (<strong>CO<\/strong>,\u00a0<strong>HC<\/strong>,\u00a0<strong>KH\u00d4NG\u2093<\/strong>).<\/li>\n\n\n\n<li>Hi\u1ec7u su\u1ea5t v\u00e0 hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng nhi\u00ean li\u1ec7u t\u1ed1t h\u01a1n.<\/li>\n\n\n\n<li>Tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh nghi\u00eam ng\u1eb7t h\u01a1n v\u1ec1 m\u00f4i tr\u01b0\u1eddng.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u c\u00f3 tu\u1ed5i th\u1ecd bao l\u00e2u?<\/h2>\n\n\n\n<p>Tu\u1ed5i th\u1ecd c\u1ee7a m\u1ed9t&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;th\u01b0\u1eddng dao \u0111\u1ed9ng trong kho\u1ea3ng&nbsp;<strong>70.000 \u0111\u1ebfn 100.000 d\u1eb7m<\/strong>&nbsp;(ho\u1eb7c 112.000 \u0111\u1ebfn 160.000 km). Tuy nhi\u00ean, tu\u1ed5i th\u1ecd c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ch\u1ea5t l\u01b0\u1ee3ng nhi\u00ean li\u1ec7u.<\/strong><\/li>\n\n\n\n<li><strong>Th\u00f3i quen l\u00e1i xe.<\/strong><\/li>\n\n\n\n<li><strong>B\u1ea3o d\u01b0\u1ee1ng \u0111\u1ed9ng c\u01a1.<\/strong><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tu\u1ed5i th\u1ecd c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c<\/h2>\n\n\n\n<p>M\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tu\u1ed5i th\u1ecd c\u1ee7a m\u1ed9t&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>, bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m<\/strong>\u00a0ch\u1eb3ng h\u1ea1n nh\u01b0 nhi\u00ean li\u1ec7u c\u00f3 ch\u00ec ho\u1eb7c ti\u00eau th\u1ee5 qu\u00e1 nhi\u1ec1u d\u1ea7u.<\/li>\n\n\n\n<li><strong>Thi\u1ec7t h\u1ea1i v\u1eadt l\u00fd<\/strong>\u00a0do va ph\u1ea3i m\u1ea3nh v\u1ee1 tr\u00ean \u0111\u01b0\u1eddng ho\u1eb7c \u0111\u1ed9ng c\u01a1 b\u1ecb ch\u1ebft m\u00e1y.<\/li>\n\n\n\n<li><strong>Hi\u1ec7u su\u1ea5t \u0111\u1ed9ng c\u01a1 k\u00e9m<\/strong>\u00a0d\u1eabn \u0111\u1ebfn l\u01b0\u1ee3ng kh\u00ed th\u1ea3i qu\u00e1 m\u1ee9c.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">D\u1ea5u hi\u1ec7u b\u1ea1n c\u00f3 th\u1ec3 c\u1ea7n thay th\u1ebf n\u00f3<\/h2>\n\n\n\n<p>N\u1ebfu b\u1ea1n&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;\u0111ang ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng b\u00ecnh th\u01b0\u1eddng, b\u1ea1n c\u00f3 th\u1ec3 nh\u1eadn th\u1ea5y:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u0103ng l\u01b0\u1ee3ng kh\u00ed th\u1ea3i.<\/li>\n\n\n\n<li><strong>Ki\u1ec3m tra \u0111\u1ed9ng c\u01a1<\/strong>\u00a0\u00e1nh s\u00e1ng chi\u1ebfu s\u00e1ng.<\/li>\n\n\n\n<li>Hi\u1ec7u su\u1ea5t \u0111\u1ed9ng c\u01a1 gi\u1ea3m, ch\u1eb3ng h\u1ea1n nh\u01b0 ch\u1ebft m\u00e1y ho\u1eb7c t\u0103ng t\u1ed1c ch\u1eadm.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111\u1ed9ng c\u01a1 x\u0103ng ch\u1ee9 kh\u00f4ng ph\u1ea3i \u0111\u1ed9ng c\u01a1 diesel?<\/h2>\n\n\n\n<p><strong>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 s\u1eed d\u1ee5ng trong&nbsp;<strong>\u0111\u1ed9ng c\u01a1 x\u0103ng<\/strong>, t\u1ea1o ra m\u1ee9c \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p h\u01a1n&nbsp;<strong>oxit nit\u01a1<\/strong>&nbsp;(<strong>KH\u00d4NG\u2093<\/strong>) V\u00e0&nbsp;<strong>c\u00e1c h\u1ea1t<\/strong>&nbsp;so v\u1edbi&nbsp;<strong>\u0111\u1ed9ng c\u01a1 diesel<\/strong>. \u0110\u1ed9ng c\u01a1 diesel y\u00eau c\u1ea7u c\u00e1c h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t kh\u00ed th\u1ea3i kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0&nbsp;<strong>b\u1ed9 l\u1ecdc h\u1ea1t diesel<\/strong>&nbsp;(DPF) v\u00e0&nbsp;<strong>kh\u1eed x\u00fac t\u00e1c ch\u1ecdn l\u1ecdc<\/strong>&nbsp;(SCR) h\u1ec7 th\u1ed1ng, ph\u00f9 h\u1ee3p h\u01a1n \u0111\u1ec3 x\u1eed l\u00fd&nbsp;<strong>kh\u00ed th\u1ea3i diesel<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa kh\u00ed th\u1ea3i c\u1ee7a \u0111\u1ed9ng c\u01a1 x\u0103ng v\u00e0 \u0111\u1ed9ng c\u01a1 diesel<\/h2>\n\n\n\n<p><strong>\u0110\u1ed9ng c\u01a1 x\u0103ng<\/strong>&nbsp;ch\u1ee7 y\u1ebfu s\u1ea3n xu\u1ea5t&nbsp;<strong>cacbon monoxit<\/strong>,&nbsp;<strong>hydrocarbon<\/strong>, V\u00e0&nbsp;<strong>oxit nit\u01a1<\/strong>. Ng\u01b0\u1ee3c l\u1ea1i,&nbsp;<strong>\u0111\u1ed9ng c\u01a1 diesel<\/strong>&nbsp;ph\u00e1t ra m\u1ee9c \u0111\u1ed9 cao h\u01a1n&nbsp;<strong>c\u00e1c h\u1ea1t<\/strong>&nbsp;V\u00e0&nbsp;<strong>KH\u00d4NG\u2093<\/strong>. \u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao&nbsp;<strong>\u0111\u1ed9ng c\u01a1 diesel<\/strong>&nbsp;y\u00eau c\u1ea7u c\u00e1c h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t kh\u00ed th\u1ea3i kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0&nbsp;<strong>DPF<\/strong>&nbsp;V\u00e0&nbsp;<strong>SCR<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110\u1ed9ng c\u01a1 Diesel y\u00eau c\u1ea7u c\u00e1c h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t kh\u00ed th\u1ea3i kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o<\/h2>\n\n\n\n<p><strong>\u0110\u1ed9ng c\u01a1 diesel<\/strong>&nbsp;y\u00eau c\u1ea7u&nbsp;<strong>b\u1ed9 l\u1ecdc h\u1ea1t diesel<\/strong>&nbsp;(DPF) \u0111\u1ec3 lo\u1ea1i b\u1ecf&nbsp;<strong>c\u00e1c h\u1ea1t<\/strong>&nbsp;t\u1eeb kh\u00ed th\u1ea3i. Ngo\u00e0i ra,&nbsp;<strong>kh\u1eed x\u00fac t\u00e1c ch\u1ecdn l\u1ecdc<\/strong>&nbsp;H\u1ec7 th\u1ed1ng (SCR) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3m&nbsp;<strong>KH\u00d4NG\u2093<\/strong>&nbsp;kh\u00ed th\u1ea3i b\u1eb1ng c\u00e1ch ti\u00eam&nbsp;<strong>ur\u00ea<\/strong>&nbsp;v\u00e0o lu\u1ed3ng kh\u00ed th\u1ea3i, ph\u1ea3n \u1ee9ng v\u1edbi&nbsp;<strong>KH\u00d4NG\u2093<\/strong>&nbsp;\u0111\u1ec3 h\u00ecnh th\u00e0nh&nbsp;<strong>nit\u01a1<\/strong>&nbsp;V\u00e0&nbsp;<strong>N\u01b0\u1edbc<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u01b0\u01a1ng lai c\u1ee7a h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t kh\u00ed th\u1ea3i \u00f4 t\u00f4: B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c s\u1ebd ra sao?<\/h2>\n\n\n\n<p>Khi c\u00e1c ti\u00eau chu\u1ea9n kh\u00ed th\u1ea3i to\u00e0n c\u1ea7u ti\u1ebfp t\u1ee5c th\u1eaft ch\u1eb7t,&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>&nbsp;c\u00f3 th\u1ec3 s\u1ebd ph\u00e1t tri\u1ec3n v\u1edbi nh\u1eefng c\u1ea3i ti\u1ebfn trong&nbsp;<strong>ch\u1ea5t x\u00fac t\u00e1c<\/strong>&nbsp;hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ed9 b\u1ec1n. C\u0169ng c\u00f3 th\u1ec3 c\u00f3 nh\u1eefng ti\u1ebfn b\u1ed9 v\u1ec1 v\u1eadt li\u1ec7u, cho ph\u00e9p hi\u1ec7u su\u1ea5t cao h\u01a1n \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n. H\u01a1n n\u1eefa, s\u1ef1 gia t\u0103ng c\u1ee7a&nbsp;<strong>lai t\u1ea1o<\/strong>&nbsp;V\u00e0&nbsp;<strong>xe \u0111i\u1ec7n<\/strong>&nbsp;s\u1ebd \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c gi\u1ea3m ph\u00e1t th\u1ea3i n\u00f3i chung, nh\u01b0ng&nbsp;<strong>\u0111\u1ed9ng c\u01a1 \u0111\u1ed1t trong<\/strong>&nbsp;v\u1eabn s\u1ebd \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i t\u1eeb ti\u00ean ti\u1ebfn&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c<\/strong>&nbsp;c\u00f4ng ngh\u1ec7.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ti\u1ebfn b\u1ed9 c\u00f4ng ngh\u1ec7 trong hi\u1ec7u qu\u1ea3 ch\u1ea5t x\u00fac t\u00e1c<\/h2>\n\n\n\n<p>Nghi\u00ean c\u1ee9u \u0111ang \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh t\u1eadp trung v\u00e0o vi\u1ec7c c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 c\u1ee7a&nbsp;<strong>ch\u1ea5t x\u00fac t\u00e1c<\/strong>&nbsp;b\u1eb1ng c\u00e1ch kh\u00e1m ph\u00e1 c\u00e1c v\u1eadt li\u1ec7u m\u1edbi, t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c s\u1eed d\u1ee5ng kim lo\u1ea1i qu\u00fd v\u00e0 thi\u1ebft k\u1ebf c\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i hi\u1ec7u qu\u1ea3 h\u01a1n.&nbsp;<strong>C\u00f4ng ngh\u1ec7 nano<\/strong>&nbsp;V\u00e0&nbsp;<strong>l\u1edbp ph\u1ee7 ti\u00ean ti\u1ebfn<\/strong>&nbsp;l\u00e0 hai con \u0111\u01b0\u1eddng ti\u1ec1m n\u0103ng \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1ee7a&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vai tr\u00f2 c\u1ee7a xe hybrid v\u00e0 xe \u0111i\u1ec7n trong vi\u1ec7c \u0111\u1ecbnh h\u00ecnh c\u00e1c ti\u00eau chu\u1ea9n kh\u00ed th\u1ea3i trong t\u01b0\u01a1ng lai<\/h2>\n\n\n\n<p><strong>Xe hybrid v\u00e0 xe \u0111i\u1ec7n<\/strong>&nbsp;\u0111\u01b0\u1ee3c k\u1ef3 v\u1ecdng s\u1ebd \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c \u0111\u00e1p \u1ee9ng t\u01b0\u01a1ng lai&nbsp;<strong>ti\u00eau chu\u1ea9n kh\u00ed th\u1ea3i<\/strong>. Trong khi h\u1ecd v\u1eabn d\u1ef1a v\u00e0o&nbsp;<strong>\u0111\u1ed9ng c\u01a1 \u0111\u1ed1t trong<\/strong>&nbsp;cho quy\u1ec1n l\u1ef1c,&nbsp;<strong>xe \u0111i\u1ec7n<\/strong>&nbsp;t\u1ea1o ra l\u01b0\u1ee3ng kh\u00ed th\u1ea3i b\u1eb1ng kh\u00f4ng t\u1eeb \u1ed1ng x\u1ea3, gi\u1ea3m g\u00e1nh n\u1eb7ng chung cho&nbsp;<strong>b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c<\/strong>.<\/p>\n\n\n\n<p>S\u1eb5n s\u00e0ng \u0111\u1ec3 b\u1eaft \u0111\u1ea7u? Kh\u00e1m ph\u00e1&nbsp;<a href=\"https:\/\/3waycatalyst.com\/vi\/contact\/\">Ch\u1ea5t x\u00fac t\u00e1c 3 chi\u1ec1u<\/a>&nbsp;Hi\u1ec7n nay!<\/p>","protected":false},"excerpt":{"rendered":"<p>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u gi\u00fap gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i t\u1eeb \u0111\u1ed9ng c\u01a1 \u0111\u1ed1t trong tr\u00ean c\u00e1c lo\u1ea1i xe hi\u1ec7n \u0111\u1ea1i, c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed v\u00e0 an to\u00e0n m\u00f4i tr\u01b0\u1eddng.<\/p>","protected":false},"author":1,"featured_media":1161,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAowgdPcCw:productID":"","footnotes":""},"categories":[25],"tags":[29,28,70,34,31,30,33,32,26],"class_list":["post-1096","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-catalyst","tag-catalytic-converters","tag-direct-fit-cat-converter","tag-emission-control","tag-engine","tag-exhaust","tag-exhaust-flow","tag-exhaust-system","tag-three-way-catalytic-converter"],"_links":{"self":[{"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/posts\/1096","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/comments?post=1096"}],"version-history":[{"count":0,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/posts\/1096\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/media\/1161"}],"wp:attachment":[{"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/media?parent=1096"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/categories?post=1096"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/tags?post=1096"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}