{"id":1794,"date":"2025-07-14T03:48:26","date_gmt":"2025-07-14T03:48:26","guid":{"rendered":"https:\/\/3waycatalyst.com\/?p=1794"},"modified":"2025-07-15T13:04:17","modified_gmt":"2025-07-15T13:04:17","slug":"the-essential-guide-to-three-way-catalytic-converters","status":"publish","type":"post","link":"https:\/\/3waycatalyst.com\/ko\/the-essential-guide-to-three-way-catalytic-converters\/","title":{"rendered":"3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30\uc5d0 \ub300\ud55c \ud544\uc218 \uac00\uc774\ub4dc"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"-introduction-\"><strong>\uc18c\uac1c<\/strong><\/h2>\n\n\n\n<p>\ubaa8\ub4e0 \ud604\ub300\uc2dd \uac00\uc194\ub9b0 \ucc28\ub7c9\uc5d0\ub294 \ubc30\uae30 \uc2dc\uc2a4\ud15c\uc5d0 \ub180\ub77c\uc6b4 \ud654\ud559 \uacf5\ud559 \uae30\uc220\uc774 \uc228\uaca8\uc838 \uc788\uc2b5\ub2c8\ub2e4.&nbsp;<strong>3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30<\/strong>\ub294 \ub2e8 \ud558\ub098\uc758 \uc911\uc694\ud55c \ubaa9\uc801\uc744 \uc218\ud589\ud569\ub2c8\ub2e4. \ubc14\ub85c \ub0b4\uc5f0 \uae30\uad00\uc5d0\uc11c \uc0dd\uc131\ub418\ub294 \uac00\uc7a5 \uc720\ud574\ud55c \uc624\uc5fc \ubb3c\uc9c8\uc744 \uc911\ud654\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \ub0b4\uc5f0 \uae30\uad00\uc774 \uc5c6\ub2e4\uba74 \ub3c4\uc2dc\ub294 \uc2a4\ubaa8\uadf8\ub85c \uac00\ub4dd \ucc28\uace0 \ub300\uae30 \uc9c8\uc740 \uacf5\uc911 \ubcf4\uac74\uc5d0 \uc2ec\uac01\ud55c \uc704\ud611\uc774 \ub420 \uac83\uc785\ub2c8\ub2e4. \uc5d4\uc9c4\uc758 \uc5f0\uc18c \uacfc\uc815\uc740 \uac15\ub825\ud558\uc9c0\ub9cc \ubd88\uc644\uc804\ud569\ub2c8\ub2e4. \uc77c\uc0b0\ud654\ud0c4\uc18c, \ubbf8\uc5f0\uc18c \ud0c4\ud654\uc218\uc18c, \uc9c8\uc18c\uc0b0\ud654\ubb3c\uacfc \uac19\uc740 \ub3c5\uc131 \ubd80\uc0b0\ubb3c\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4. \uc0bc\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30\ub294 \ucd5c\ud6c4\uc758 \ubc29\uc5b4\uc120 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc774 \ucd09\ub9e4 \ubcc0\ud658\uae30\ub294 \uc774\ub7ec\ud55c \uc720\ud574 \uac00\uc2a4\uac00 \ubc30\uae30\uac00\uc2a4\uc5d0 \ub3c4\ub2ec\ud558\uae30 \uc804\uc5d0 \ubb34\ud574\ud55c \ubb3c\uc9c8\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 \uc0bc\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30\uc5d0 \ub300\ud55c \uacfc\ud559\uc801 \ubc0f \uae30\uc220\uc801 \ud0d0\uad6c\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc0bc\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30\uc758 \uc5ed\uc0ac, \ubcf5\uc7a1\ud55c \ud654\ud559 \uacfc\uc815, \ubb3c\ub9ac\uc801 \uad6c\uc131 \uc694\uc18c, \uadf8\ub9ac\uace0 \ud6a8\uacfc\uc801\uc778 \uc791\ub3d9\uc5d0 \ud544\uc694\ud55c \uc815\ud655\ud55c \uc870\uac74\uc744 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"-chapter-1-the-evolution-from-two-way-to-three-way-converters-\"><strong>\uc81c1\uc7a5: 2\ubc29\ud5a5 \ubcc0\ud658\uae30\uc5d0\uc11c 3\ubc29\ud5a5 \ubcc0\ud658\uae30\ub85c\uc758 \uc9c4\ud654<\/strong><\/h2>\n\n\n\n<p>\ud604\ub300\ub85c\uc758 \uc5ec\ud589&nbsp;<strong>3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30<\/strong>&nbsp;\ub300\uae30 \uc624\uc5fc\uc5d0 \ub300\ud55c \uc778\uc2dd\uc774 \ub192\uc544\uc9c0\uba74\uc11c \uc2dc\uc791\ub418\uc5c8\uc2b5\ub2c8\ub2e4. 20\uc138\uae30 \uc911\ubc18, \uacfc\ud559\uc790\ub4e4\uacfc \uaddc\uc81c \uae30\uad00\ub4e4\uc740 \uc790\ub3d9\ucc28 \ubc30\uae30\uac00\uc2a4\ub97c \ub3c4\uc2dc \uc2a4\ubaa8\uadf8\uc758 \uc8fc\uc694 \uc6d0\uc778\uc73c\ub85c \uc9c0\ubaa9\ud588\uc2b5\ub2c8\ub2e4. \ubbf8\uad6d\uc5d0\uc11c \uac00\uc7a5 \uc911\uc694\ud55c \uc785\ubc95\uc801 \ub300\uc751\uc740 \ub300\uae30\uccad\uc815\ubc95(Clean Air Act)\uc73c\ub85c, \ud658\uacbd\ubcf4\ud638\uccad(EPA)\uc774 \uc790\ub3d9\ucc28 \ubc30\uae30\uac00\uc2a4\uc5d0 \ub300\ud55c \uc5c4\uaca9\ud55c \uc81c\ud55c\uc744 \uc124\uc815\ud560 \uc218 \uc788\ub3c4\ub85d \uad8c\ud55c\uc744 \ubd80\uc5ec\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"-the-first-step-two-way-oxidation-converters-\"><strong>\uccab \ubc88\uc9f8 \ub2e8\uacc4: \uc591\ubc29\ud5a5 \uc0b0\ud654 \ubcc0\ud658\uae30<\/strong><\/h3>\n\n\n\n<p>\uc790\ub3d9\ucc28 \uc81c\uc870\uc5c5\uccb4\ub4e4\uc740 \ucd08\uae30\uc5d0 &#034;\uc591\ubc29\ud5a5&#034; \ucd09\ub9e4 \ubcc0\ud658\uae30\ub97c \ub3c4\uc785\ud588\uc2b5\ub2c8\ub2e4. \uc774 \uc7a5\uce58\ub294 \ubbf8\uad6d \uc2dc\uc7a5\uc5d0\uc11c 1975\ub144\ud615 \ubaa8\ub378 \ucc28\ub7c9 \ub300\ubd80\ubd84\uc5d0 \ucc98\uc74c \uc801\uc6a9\ub418\uc5b4 \ub110\ub9ac \ubcf4\uae09\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc774 \uc7a5\uce58\uc758 \uc5ed\ud560\uc740 \uc138 \uac00\uc9c0 \uc8fc\uc694 \uc624\uc5fc \ubb3c\uc9c8 \uc911 \uc77c\uc0b0\ud654\ud0c4\uc18c(CO)\uc640 \ubbf8\uc5f0\uc18c \ud0c4\ud654\uc218\uc18c(HC) \ub450 \uac00\uc9c0\ub97c \ucc98\ub9ac\ud558\ub294 \uac83\uc774\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc774 \ucd08\uae30 \ubcc0\ud658\uae30\ub294 \uc0b0\ud654 \ucd09\ub9e4 \uc5ed\ud560\uc744 \ud588\uc2b5\ub2c8\ub2e4. \uc7a5\uce58 \ub0b4\ubd80\uc5d0\uc11c \ubc30\uae30\uac00\uc2a4\uc5d0\uc11c \ub098\uc624\ub294 \uc0b0\uc18c\ub294 \uc77c\uc0b0\ud654\ud0c4\uc18c(CO)\uc640 \ud0c4\ud654\uc218\uc18c(HC)\uc640 \ubc18\uc751\ud588\uc2b5\ub2c8\ub2e4. \ubc31\uae08\uc774\ub098 \ud314\ub77c\ub4d0\uacfc \uac19\uc740 \ucd09\ub9e4\uc5d0 \uc758\ud574 \ucd09\uc9c4\ub418\ub294 \uc774 \ud654\ud559 \ubc18\uc751\uc740 \uc774\ub4e4\uc744 \ud6e8\uc52c \ub354 \uc548\uc804\ud55c \ub450 \uac00\uc9c0 \ud654\ud569\ubb3c, \uc989 \uc774\uc0b0\ud654\ud0c4\uc18c(CO\u2082)\uc640 \ubb3c(H\u2082O)\ub85c \ubcc0\ud658\ud588\uc2b5\ub2c8\ub2e4. \uc774 \ud2b9\uc815 \uc791\uc5c5\uc5d0\ub294 \ud6a8\uacfc\uc801\uc774\uc5c8\uc9c0\ub9cc, \uc591\ubc29\ud5a5 \ubcc0\ud658\uae30\ub294 \uc138 \ubc88\uc9f8 \uc8fc\uc694 \uc624\uc5fc \ubb3c\uc9c8\uc778 \uc9c8\uc18c\uc0b0\ud654\ubb3c(NOx)\uc744 \ucc98\ub9ac\ud558\ub294 \ub370\ub294 \uc544\ubb34\ub7f0 \ud6a8\uacfc\uac00 \uc5c6\uc5c8\uc2b5\ub2c8\ub2e4. NOx\ub294 \uc0b0\uc131\ube44\uc640 \uc9c0\ud45c\uba74 \uc624\uc874 \uc0dd\uc131\uc758 \ud575\uc2ec \uc131\ubd84\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"-the-comprehensive-solution-the-advent-of-the-three-way-converter-\"><strong>\uc885\ud569 \uc194\ub8e8\uc158: 3\ubc29\ud5a5 \ucee8\ubc84\ud130\uc758 \ub4f1\uc7a5<\/strong><\/h3>\n\n\n\n<p>\uaddc\uc81c\uac00 \uac15\ud654\ub428\uc5d0 \ub530\ub77c \ub354\uc6b1 \uc644\ubcbd\ud55c \ud574\uacb0\ucc45\uc758 \ud544\uc694\uc131\uc774 \uc2dc\uae09\ud574\uc84c\uc2b5\ub2c8\ub2e4. \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc740 \uc138 \uac00\uc9c0 \uc624\uc5fc \ubb3c\uc9c8\uc744 \ub3d9\uc2dc\uc5d0 \ucc98\ub9ac\ud560 \uc218 \uc788\ub294 &#034;3\uc6d0&#034; \ucee8\ubc84\ud130\ub97c \uac1c\ubc1c\ud588\uc2b5\ub2c8\ub2e4. \ubcfc\ubcf4\ub294 1977\ub144 \uce98\ub9ac\ud3ec\ub2c8\uc544 \uc2dc\uc7a5\uc5d0\uc11c \ucd5c\ucd08\ub85c \uc0c1\uc6a9 3\uc6d0 \ucee8\ubc84\ud130\ub97c \ub3c4\uc785\ud558\uba70 \uc120\uad6c\uc790 \uc5ed\ud560\uc744 \ud588\uc2b5\ub2c8\ub2e4. \ub2f9\uc2dc \uce98\ub9ac\ud3ec\ub2c8\uc544\ub294 \ubc30\ucd9c\uac00\uc2a4 \uaddc\uc81c\uac00 \uac00\uc7a5 \uc5c4\uaca9\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>1981\ub144 \ubaa8\ub378 \uc5f0\ub3c4\uc5d0\ub294 \uc5f0\ubc29 \uaddc\uc815\uc5d0 \ub530\ub77c NOx \ubc30\ucd9c\ub7c9\uc744 \ud06c\uac8c \uc904\uc5ec\uc57c \ud588\uc2b5\ub2c8\ub2e4. \uc774 \uba85\ub839\uc740 \uc0ac\uc2e4\uc0c1&nbsp;<strong>3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30<\/strong>&nbsp;\ubbf8\uad6d\uc5d0\uc11c \uc0dd\uc0b0\ub418\ub294 \ubaa8\ub4e0 \uc2e0\ud615 \uac00\uc194\ub9b0 \ucc28\ub7c9\uc5d0 \uae30\ubcf8\uc73c\ub85c \uc7a5\ucc29\ub418\ub294 \ud544\uc218 \ubd80\ud488\uc785\ub2c8\ub2e4. \uc774 \uae30\uc220\uc740 \uc0b0\ud654\uc640 \ub354\ubd88\uc5b4 \ud658\uc6d0\uc774\ub77c\ub294 \ub450 \ubc88\uc9f8 \ud654\ud559 \uacf5\uc815\uc744 \ud1b5\ud569\ud568\uc73c\ub85c\uc368 \ud68d\uae30\uc801\uc778 \ubc1c\uc804\uc744 \uc774\ub8e8\uc5c8\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc774\uc911 \uc791\uc6a9 \ub2a5\ub825 \ub355\ubd84\uc5d0 \uc774 \uae30\uc220\uc740 &#034;\uc0bc\uc911 \uc791\uc6a9&#034;\uc744 \uac00\ub2a5\ud558\uac8c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"-comparison-two-way-vs-three-way-catalytic-converters-\"><strong>\ube44\uad50: 2\ubc29\ud5a5 \ucd09\ub9e4 \ubcc0\ud658\uae30\uc640 3\ubc29\ud5a5 \ucd09\ub9e4 \ubcc0\ud658\uae30<\/strong><\/h3>\n\n\n\n<p>\uc774 \ub450 \uae30\uc220\uc758 \ucc28\uc774\ub294 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4. \uc544\ub798 \ud45c\ub294 \ub450 \uae30\uc220\uc758 \uc8fc\uc694 \ucc28\uc774\uc810\uc744 \uac04\ub7b5\ud558\uac8c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \ucd5c\uc2e0 \ucc28\ub7c9\uc740 \ud3ec\uad04\uc801\uc778 \uad6d\uc81c \ubc30\ucd9c \uae30\uc900\uc744 \ucda9\uc871\ud558\uae30 \uc704\ud574 3\ubc29\ud5a5 \ucee8\ubc84\ud130\ub9cc \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud2b9\uc9d5<\/th><th>\uc591\ubc29\ud5a5 \ucd09\ub9e4 \ubcc0\ud658\uae30<\/th><th>3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30<\/th><\/tr><\/thead><tbody><tr><td><strong>\ucc98\ub9ac\ub41c \uc624\uc5fc \ubb3c\uc9c8<\/strong><\/td><td>\uc77c\uc0b0\ud654\ud0c4\uc18c(CO), \ud0c4\ud654\uc218\uc18c(HC)<\/td><td>\uc77c\uc0b0\ud654\ud0c4\uc18c(CO), \ud0c4\ud654\uc218\uc18c(HC), \uc9c8\uc18c\uc0b0\ud654\ubb3c(NOx)<\/td><\/tr><tr><td><strong>1\ucc28 \ud654\ud559 \uacf5\uc815<\/strong><\/td><td>\uc0b0\ud654<\/td><td>\uc0b0\ud654\uc640 \ud658\uc6d0<\/td><\/tr><tr><td><strong>\uc0ac\uc6a9\ub41c \ucd09\ub9e4 \uae08\uc18d<\/strong><\/td><td>\ubc31\uae08(Pt), \ud314\ub77c\ub4d0(Pd)<\/td><td>\ubc31\uae08(Pt), \ud314\ub77c\ub4d0(Pd),&nbsp;<strong>\ub85c\ub4d0(Rh)<\/strong><\/td><\/tr><tr><td><strong>\uc8fc\uc694 \uae30\ub2a5<\/strong><\/td><td>CO\ub97c CO\u2082\ub85c, HC\ub97c CO\u2082 + H\u2082O\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4.<\/td><td>\ub3d9\uc77c\ud55c \uc0b0\ud654 \ubc18\uc751\uc744 \uc218\ud589\ud569\ub2c8\ub2e4.&nbsp;<strong>...\uc744 \ub354\ud55c<\/strong>&nbsp;NOx\ub97c N\u2082\ub85c \uac10\uc18c\uc2dc\ud0b5\ub2c8\ub2e4<\/td><\/tr><tr><td><strong>\ud604\ub300\uc801 \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8<\/strong><\/td><td>\uac00\uc194\ub9b0 \uc790\ub3d9\ucc28\uc5d0\uc11c\ub294 \ub354 \uc774\uc0c1 \uc0ac\uc6a9\ub418\uc9c0 \uc54a\uc73c\uba70 \uc77c\ubd80 \ub514\uc824 \ubc0f \ud76c\ubc15 \uc5f0\uc18c \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/td><td>\uac70\uc758 \ubaa8\ub4e0 \ucd5c\uc2e0 \uac00\uc194\ub9b0 \ucc28\ub7c9\uc5d0 \ud45c\uc900 \uc7a5\ucc29<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"-chapter-2-the-core-chemistry-of-a-three-way-catalytic-converter-\"><strong>2\uc7a5: 3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30\uc758 \ud575\uc2ec \ud654\ud559<\/strong><\/h2>\n\n\n\n<p>\uc5d0\uc774&nbsp;<strong>3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30<\/strong>&nbsp;\ub294 \ubcf8\uc9c8\uc801\uc73c\ub85c \ud654\ud559 \ubc18\uc751\uae30\uc785\ub2c8\ub2e4. \ucd09\ub9e4\ub77c\uace0 \ud558\ub294 \ud2b9\uc815 \ubb3c\uc9c8\uc744 \uc0ac\uc6a9\ud558\uc5ec \ud654\ud559 \ubc18\uc751 \uacfc\uc815\uc5d0\uc11c \uc18c\ubaa8\ub418\uc9c0 \uc54a\uace0 \ubc18\uc751 \uc18d\ub3c4\ub97c \ub192\uc785\ub2c8\ub2e4. &#034;\uc0bc\uc6d0(three-way)&#034;\uc774\ub77c\ub294 \uc774\ub984\uc740 \uc138 \uac00\uc9c0 \ud654\ud559 \ubc18\uc751\uc744 \ub3d9\uc2dc\uc5d0 \ucd09\uc9c4\ud560 \uc218 \uc788\ub2e4\ub294 \uac83\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubc18\uc751\uc740 \ud658\uc6d0\uacfc \uc0b0\ud654\ub77c\ub294 \ub450 \uac00\uc9c0 \ub69c\ub837\ud55c \uacfc\uc815\uc73c\ub85c \ub098\ub269\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc774 \ub450 \uacfc\uc815\uc740 \ubcc4\ub3c4\uc758 \ub2e8\uacc4\ub85c \uc9c4\ud589\ub418\uac70\ub098 \ucee8\ubc84\ud130 \ud558\uc6b0\uc9d5 \ub0b4\ubd80\uc758 \uc11c\ub85c \ub2e4\ub978 \ucd09\ub9e4 \ubb3c\uc9c8\uc5d0\uc11c \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ub450 \uacfc\uc815 \ubaa8\ub450 \ud6a8\uc728\uc801\uc73c\ub85c \uc791\ub3d9\ud558\ub824\uba74 \uc5d4\uc9c4\uc758 \ucef4\ud4e8\ud130\uac00 \uc5f0\ub8cc\uc640 \uacf5\uae30\uc758 \uade0\ud615\uc744 \ub9e4\uc6b0 \uc815\ubc00\ud558\uac8c \uc720\uc9c0\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"-the-reduction-reaction-neutralizing-nitrogen-oxides-nox-\"><strong>\ud658\uc6d0 \ubc18\uc751: \uc9c8\uc18c\uc0b0\ud654\ubb3c(NOx) \uc911\ud654<\/strong><\/h3>\n\n\n\n<p>\uccab \ubc88\uc9f8 \ubcc0\ud658 \ub2e8\uacc4\ub294 \uac00\uc7a5 \ucc98\ub9ac\ud558\uae30 \uc5b4\ub824\uc6b4 \uc624\uc5fc \ubb3c\uc9c8\uc778 \uc9c8\uc18c\uc0b0\ud654\ubb3c(NOx)\uc744 \ubaa9\ud45c\ub85c \ud569\ub2c8\ub2e4. \uc774 \uac00\uc2a4\uad70\uc740 \uc5d4\uc9c4 \uc2e4\ub9b0\ub354 \ub0b4\ubd80\uc758 \uace0\uc555, \uace0\uc628 \uc870\uac74\uc5d0\uc11c \uc9c8\uc18c\uc640 \uc0b0\uc18c\uac00 \ubc18\uc751\ud558\uc5ec \uc0dd\uc131\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\ud658\uc6d0 \ucd09\ub9e4\ub294 NOx\ub97c \ubd84\ud574\ud558\ub294 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc774 \uc791\uc5c5\uc5d0 \uc801\ud569\ud55c \uadc0\uae08\uc18d\uc740 \ub85c\ub4d0(Rh)\uc785\ub2c8\ub2e4. \ub85c\ub4d0\uc740 \uc9c8\uc18c\uc0b0\ud654\ubb3c \ubd84\uc790\uc5d0\uc11c \uc0b0\uc18c \uc6d0\uc790\ub97c \ubd84\ub9ac\ud558\ub294 \ub3c5\ud2b9\ud55c \ub2a5\ub825\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ubc18\uc751\uc73c\ub85c \uc9c8\uc18c \uc6d0\uc790\uac00 \ubd84\ub9ac\ub418\uace0, \uc774 \uc6d0\uc790\ub4e4\uc774 \uc11c\ub85c \uacb0\ud569\ud558\uc5ec \uc6b0\ub9ac\uac00 \ub9c8\uc2dc\ub294 \uacf5\uae30\uc758 \uc8fc\uc694 \uc131\ubd84\uc778 \ubb34\ud574\ud55c \uc9c8\uc18c \uac00\uc2a4(N\u2082)\ub97c \ud615\uc131\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ud654\ud559 \ubc18\uc751:<\/strong>&nbsp;2NOx \u2192 xO\u2082 + N\u2082<\/li>\n<\/ul>\n\n\n\n<p>\uc774 \ubc18\uc751\uc5d0\uc11c \ub85c\ub4d0 \ucd09\ub9e4\ub294 NOx\uac00 \uc6d0\uc18c \uc0b0\uc18c\uc640 \uc548\uc815\ud55c \uc9c8\uc18c \uac00\uc2a4\ub85c \ubd84\ud574\ub418\ub294 \uac83\uc744 \ucd09\uc9c4\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"-the-oxidation-reaction-cleaning-up-co-and-hc-\"><strong>\uc0b0\ud654 \ubc18\uc751: CO \ubc0f HC \uc815\ud654<\/strong><\/h3>\n\n\n\n<p>\ub450 \ubc88\uc9f8 \ub2e8\uacc4\uc5d0\uc11c\ub294 \uc77c\uc0b0\ud654\ud0c4\uc18c(CO)\uc640 \ubbf8\uc5f0\uc18c \ud0c4\ud654\uc218\uc18c(HC)\ub97c \ucc98\ub9ac\ud569\ub2c8\ub2e4. \uc77c\uc0b0\ud654\ud0c4\uc18c\ub294 \uc5f0\ub8cc\uc758 \ubd88\uc644\uc804 \uc5f0\uc18c\ub85c \uc778\ud574 \ubc1c\uc0dd\ud558\ub294 \uc720\ub3c5 \uac00\uc2a4\uc785\ub2c8\ub2e4. \ud0c4\ud654\uc218\uc18c\ub294 \ub2e8\uc21c\ud788 \ubbf8\uc5f0\uc18c \uc5f0\ub8cc \uc785\uc790\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc0b0\ud654 \ucd09\ub9e4\ub294 \ud658\uc6d0 \ub2e8\uacc4\uc5d0\uc11c \ubc29\ucd9c\ub41c \uc0b0\uc18c\uc640 \ubc30\uae30\uac00\uc2a4\uc5d0 \uc874\uc7ac\ud558\ub294 \ub2e4\ub978 \uc0b0\uc18c\ub97c \ud568\uaed8 \uc0ac\uc6a9\ud558\uc5ec \uc774 \ub450 \uac00\uc9c0 \uc624\uc5fc \ubb3c\uc9c8\uc744 \uc0b0\ud654\uc2dc\ud0b5\ub2c8\ub2e4. \uc774 \uacfc\uc815\uc5d0\ub294 \ubc31\uae08(Pt)\uacfc \ud314\ub77c\ub4d0(Pd)\uc774 \uc8fc\uc694 \uae08\uc18d\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc774 \uae08\uc18d\ub4e4\uc740 \uc77c\uc0b0\ud654\ud0c4\uc18c(CO)\uc640 \ud0c4\ud654\uc218\uc18c(HC) \ubd84\uc790\uc5d0 \uc0b0\uc18c\ub97c \ucca8\uac00\ud558\ub294 \ubc18\uc751\uc744 \ucd09\uc9c4\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc77c\uc0b0\ud654\ud0c4\uc18c \uc0b0\ud654:<\/strong>&nbsp;2CO + O\u2082 \u2192 2CO\u2082<\/li>\n\n\n\n<li><strong>\ud0c4\ud654\uc218\uc18c \uc0b0\ud654:<\/strong>&nbsp;C\u2093H\u2082\u2093\u208a\u2082 + [(3x+1)\/2]O\u2082 \u2192 xCO\u2082 + (x+1)H\u2082O<\/li>\n<\/ul>\n\n\n\n<p>\uc774 \uacfc\uc815\uc740 \ub3c5\uc131\uc774 \uc788\ub294 \uc77c\uc0b0\ud654\ud0c4\uc18c\ub97c \ubb34\ub3c5\uc131 \uc774\uc0b0\ud654\ud0c4\uc18c(CO\u2082)\ub85c \ubcc0\ud658\ud558\uace0, \uc624\uc5fc\uc774 \uc788\ub294 \ud0c4\ud654\uc218\uc18c\ub97c \uc774\uc0b0\ud654\ud0c4\uc18c\uc640 \uc218\uc99d\uae30(H\u2082O)\ub85c \uc804\ud658\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"-summary-of-chemical-transformations-\"><strong>\ud654\ud559 \ubcc0\ud658 \uc694\uc57d<\/strong><\/h3>\n\n\n\n<p>\uc544\ub798 \ud45c\ub294 \uc720\uc785 \uc624\uc5fc \ubb3c\uc9c8\uacfc \ud1b5\uacfc \ud6c4\uc758 \ubc30\ucd9c \uc81c\ud488\uc744 \uc694\uc57d\ud55c \uac83\uc785\ub2c8\ub2e4.&nbsp;<strong>3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th>\uc785\ub825 \uc624\uc5fc \ubb3c\uc9c8<\/th><th>\ud654\ud559\uc2dd<\/th><th>\ubc18\uc751 \uc720\ud615<\/th><th>\ucd09\ub9e4 \uae08\uc18d<\/th><th>\ucd9c\ub825 \uc81c\ud488<\/th><th>\ud654\ud559\uc2dd<\/th><\/tr><\/thead><tbody><tr><td>\uc9c8\uc18c \uc0b0\ud654\ubb3c<\/td><td>\uc9c8\uc18c\uc0b0\ud654\ubb3c(NOx)<\/td><td>\uc808\uac10<\/td><td>\ub85c\ub4d0(Rh)<\/td><td>\uc9c8\uc18c\uac00\uc2a4<\/td><td>\uc9c8\uc18c(N\u2082)<\/td><\/tr><tr><td>\uc77c\uc0b0\ud654\ud0c4\uc18c<\/td><td>\ucf54<\/td><td>\uc0b0\ud654<\/td><td>\ubc31\uae08(Pt), \ud314\ub77c\ub4d0(Pd)<\/td><td>\uc774\uc0b0\ud654\ud0c4\uc18c<\/td><td>\uc774\uc0b0\ud654\ud0c4\uc18c<\/td><\/tr><tr><td>\ud0c4\ud654\uc218\uc18c<\/td><td>HC<\/td><td>\uc0b0\ud654<\/td><td>\ubc31\uae08(Pt), \ud314\ub77c\ub4d0(Pd)<\/td><td>\uc774\uc0b0\ud654\ud0c4\uc18c\uc640 \ubb3c<\/td><td>CO\u2082 \ubc0f H\u2082O<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"-chapter-3-anatomy-of-a-three-way-catalytic-converter-\"><strong>3\uc7a5: 3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30\uc758 \uad6c\uc870<\/strong><\/h2>\n\n\n\n<p>\ud654\ud559 \uc791\uc6a9\uc740 \ubcf5\uc7a1\ud558\uc9c0\ub9cc, \ubcc0\ud658\uae30\uc758 \ubb3c\ub9ac\uc801 \uad6c\uc870\ub294 \ucd5c\ub300 \ud6a8\uc728\uacfc \ub0b4\uad6c\uc131\uc744 \uc704\ud574 \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \ubcc0\ud658\uae30\ub294 \uae30\ud310, \uc6cc\uc2dc\ucf54\ud2b8, \ucd09\ub9e4\uce35\uc774\ub77c\ub294 \uc138 \uac00\uc9c0 \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c\uac00 \uc870\ud654\ub86d\uac8c \uc791\ub3d9\ud558\uc5ec \uad6c\uc131\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"-the-substrate-a-foundation-of-maximum-surface-area-\"><strong>\uae30\ud310: \ucd5c\ub300 \ud45c\uba74\uc801\uc758 \uae30\ucd08<\/strong><\/h3>\n\n\n\n<p>\ubcc0\ud658\uae30\uc758 \ud575\uc2ec\uc740 \uae30\ud310\uc785\ub2c8\ub2e4. \uae30\ud310\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ucf54\ub514\uc5b4\ub77c\uc774\ud2b8\ub85c \ub9cc\ub4e4\uc5b4\uc9c4 \uc138\ub77c\ubbf9 \ubaa8\ub178\ub9ac\uc2a4(monolith)\uc774\uba70, \ub54c\ub85c\ub294 \uae08\uc18d \uad6c\uc870\ub85c \uc81c\uc791\ub418\uae30\ub3c4 \ud569\ub2c8\ub2e4. \ub2e8\ub2e8\ud55c \ube14\ub85d\uc774 \uc544\ub2c8\ub77c \uc815\uad50\ud55c \ubc8c\uc9d1 \uad6c\uc870\uc785\ub2c8\ub2e4. \uc774 \uad6c\uc870\ub294 \uc218\ucc9c \uac1c\uc758 \uc791\uc740 \ud3c9\ud589 \ucc44\ub110\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\ud5c8\ub2c8\ucf64\uc758 \ubaa9\uc801\uc740 \ubc30\uae30\uac00\uc2a4\uc640 \uc811\ucd09\ud558\ub294 \ud45c\uba74\uc801\uc744 \uadf9\ub300\ud654\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \ud45c\uba74\uc801\uc774 \ub113\uc744\uc218\ub85d \uc881\uc740 \uacf5\uac04 \ub0b4\uc5d0\uc11c \ub354\uc6b1 \ud6a8\uc728\uc801\uc774\uace0 \ube60\ub978 \ud654\ud559 \ubc18\uc751\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ucc44\ub110\uc758 \ubc00\ub3c4\ub294 \uc81c\uacf1\uc778\uce58\ub2f9 \uc140 \uc218(CPSI)\ub85c \uce21\uc815\ub418\uba70, \uc774\ub294 \ub2e4\uc591\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uace0\uc131\ub2a5 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc740 \ub354 \ub098\uc740 \uc804\ud658\uc728\uc744 \uc704\ud574 \ub354 \ub192\uc740 CPSI\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc18\uba74, \uc77c\ubc18 \ucc28\ub7c9\uc740 \ud6a8\uc728\uacfc \uc720\ub7c9\uc758 \uade0\ud615\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uae30\uc9c8 \uc7ac\ub8cc\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uba87 \uac00\uc9c0 \uc8fc\uc694 \ud2b9\uc131\uc744 \uac00\uc838\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uace0\uc628 \uc800\ud56d\uc131:<\/strong>&nbsp;1200\u00b0C(2200\u00b0F)\ub97c \ucd08\uacfc\ud558\ub294 \ubc30\uae30 \uc628\ub3c4\ub97c \uacac\ub38c\uc57c \ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc5f4 \uc548\uc815\uc131:<\/strong>&nbsp;\uae09\uaca9\ud55c \uc628\ub3c4 \ubcc0\ud654\uc5d0\ub3c4 \uae68\uc9c0\uac70\ub098 \ubcc0\ud615\ub418\uc5b4\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uad6c\uc870\uc801 \uac15\ub3c4:<\/strong>&nbsp;\ubc30\uae30 \uc2dc\uc2a4\ud15c\uc758 \uc9c0\uc18d\uc801\uc778 \uc9c4\ub3d9\uacfc \uc555\ub825\uc744 \uacac\ub38c\uc57c \ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc800\ub834\ud55c \ube44\uc6a9:<\/strong>&nbsp;\uc81c\uc870\uc5c5\uccb4\ub294 \uc774\ub97c \ub300\ub7c9\uc73c\ub85c \uacbd\uc81c\uc801\uc73c\ub85c \uc0dd\uc0b0\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"-the-washcoat-increasing-the-reactive-surface-\"><strong>\uc6cc\uc2dc\ucf54\ud2b8: \ubc18\uc751\uc131 \ud45c\uba74 \uc99d\uac00<\/strong><\/h3>\n\n\n\n<p>\uc138\ub77c\ubbf9 \uae30\ud310 \uc790\uccb4\ub294 \ucd09\ub9e4 \ud65c\uc131\uc774 \uc5c6\uc2b5\ub2c8\ub2e4. \uadc0\uae08\uc18d\uc744 \uc704\ud55c \uc900\ube44\ub97c \uc704\ud574 \uc81c\uc870\uc5c5\uccb4\ub294 &#034;\uc6cc\uc2dc\ucf54\ud2b8&#034;\ub97c \ub3c4\ud3ec\ud569\ub2c8\ub2e4. \uc774\ub294 \ub2e4\uacf5\uc131 \ubb3c\uc9c8, \uac00\uc7a5 \uc77c\ubc18\uc801\uc73c\ub85c \uc0b0\ud654\uc54c\ub8e8\ubbf8\ub284(Al\u2082O\u2083)\uc73c\ub85c \uc774\ub8e8\uc5b4\uc9c4 \uce35\uc73c\ub85c, \ud5c8\ub2c8\ucf64 \uad6c\uc870\uc758 \ub0b4\ubd80 \ud45c\uba74 \uc804\uccb4\uc5d0 \ub3c4\ud3ec\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc6cc\uc2dc\ucf54\ud2b8\uc758 \uae30\ub2a5\uc740 \ubbf8\uc138\ud55c \uc218\uc900\uc5d0\uc11c \uc720\ud6a8 \ud45c\uba74\uc801\uc744 \uadf9\uc801\uc73c\ub85c \uc99d\uac00\uc2dc\ud0a4\ub294 \uac83\uc785\ub2c8\ub2e4. \uac70\uce60\uace0 \ub2e4\uacf5\uc131\uc778 \uc6cc\uc2dc\ucf54\ud2b8\uc758 \uc9c8\uac10\uc740 \ucd09\ub9e4 \uc785\uc790\uac00 \uace0\uc815\ub420 \uc218 \uc788\ub294 \ubb34\uc218\ud55c \ud2c8\uc0c8\uc640 \uacf5\uac04\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \uc0ac\uc6a9 \uac00\ub2a5\ud55c \ubc18\uc751 \ubd80\uc704\uac00 \uae30\ud558\uae09\uc218\uc801\uc73c\ub85c \uc99d\uac00\ud558\uc5ec, \uae08\uc18d\uc744 \ub9e4\ub044\ub7ec\uc6b4 \uc138\ub77c\ubbf9\uc5d0 \uc9c1\uc811 \ub3c4\ud3ec\ud558\ub294 \uacbd\uc6b0\ubcf4\ub2e4 \ubcc0\ud658\uae30\uc758 \ud6a8\uc728\uc774 \ud6e8\uc52c \ub192\uc544\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"-the-precious-metals-the-catalytic-powerhouse-\"><strong>\uadc0\uae08\uc18d: \ucd09\ub9e4\uc758 \uc6d0\ub3d9\ub825<\/strong><\/h3>\n\n\n\n<p>\ub9c8\uc9c0\ub9c9\uc73c\ub85c \uac00\uc7a5 \uc911\uc694\ud55c \uce35\uc5d0\ub294 \ucd09\ub9e4 \uc790\uccb4\uac00 \ub4e4\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \ubc31\uae08\uc871\uc758 \uadc0\uae08\uc18d\uc785\ub2c8\ub2e4.&nbsp;<strong>\ubc31\uae08(Pt), \ud314\ub77c\ub4d0(Pd), \ub85c\ub4d0(Rh)<\/strong>. \uc774\ub4e4 \uae08\uc18d\uc758 \ub9e4\uc6b0 \uc587\uc740 \uce35\uc774 \uc6cc\uc2dc\ucf54\ud2b8 \ud45c\uba74\uc5d0 \uacb0\ud569\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ud50c\ub798\ud2f0\ub118(Pt)<\/strong>&nbsp;\ub6f0\uc5b4\ub09c \uc0b0\ud654 \ucd09\ub9e4\ub85c, CO\uc640 HC\ub97c \ubaa8\ub450 \ud6a8\uacfc\uc801\uc73c\ub85c \uc804\ud658\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ud314\ub77c\ub4d0(Pd)<\/strong>&nbsp;\ub610\ud55c \uc0b0\ud654 \ucd09\ub9e4 \uc5ed\ud560\ub3c4 \ud558\uba70, \uc885\uc885 \ubc31\uae08\uc5d0 \ub300\ud55c \uc800\ub834\ud55c \ub300\uccb4\uc7ac\ub098 \ubcf4\ucda9\uc81c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub85c\ub4d0(Rh)<\/strong>&nbsp;\ub294 \uc804\uc6a9 \ud658\uc6d0 \ucd09\ub9e4\uc785\ub2c8\ub2e4. \uc774 \ucd09\ub9e4\uc758 \uc720\uc77c\ud55c \ubaa9\uc801\uc740 NOx\ub97c \ubd84\ud574\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p>\uc774\ub7ec\ud55c \uae08\uc18d\uc758 \ub192\uc740 \ube44\uc6a9\uc774 \uc8fc\ub41c \uc774\uc720\uc785\ub2c8\ub2e4.&nbsp;<strong>3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30<\/strong>&nbsp;\uadc0\uae08\uc18d\uc740 \uac00\uce58\uac00 \ub192\uace0 \ub3c4\ub09c\uc758 \ud45c\uc801\uc774 \ub418\uae30 \uc27d\uc2b5\ub2c8\ub2e4. \uc790\ub3d9\ucc28 \uc81c\uc870\uc5c5\uccb4\ub4e4\uc740 \ubcc0\ud658 \ud6a8\uc728\uc744 \uc800\ud558\uc2dc\ud0a4\uc9c0 \uc54a\uc73c\uba74\uc11c \ud544\uc694\ud55c \uadc0\uae08\uc18d\uc758 \uc591\uc744 \uc904\uc774\ub294 \uc0c8\ub85c\uc6b4 \ubc29\ubc95(&#034;\uc808\uc57d&#034;\uc774\ub77c\uace0 \ud558\ub294 \uacfc\uc815)\uc744 \ub04a\uc784\uc5c6\uc774 \uc5f0\uad6c\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"-chapter-4-the-critical-conditions-for-optimal-performance-\"><strong>4\uc7a5: \ucd5c\uc801\uc758 \uc131\ub2a5\uc744 \uc704\ud55c \uc911\uc694\ud55c \uc870\uac74<\/strong><\/h3>\n\n\n\n<p>\uc5d0\uc774&nbsp;<strong>3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30<\/strong>&nbsp;\ubaa8\ub4e0 \uc870\uac74\uc5d0\uc11c \ucd5c\ub300 \ud6a8\uc728\ub85c \uc791\ub3d9\ud558\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4. \uc774 \uae30\ub2a5\uc5d0\ub294 \uacf5\uc5f0\ube44\uc640 \uc791\ub3d9 \uc628\ub3c4\ub77c\ub294 \ub450 \uac00\uc9c0 \uc694\uc18c\uac00 \uc808\ub300\uc801\uc73c\ub85c \uc911\uc694\ud569\ub2c8\ub2e4. \ucc28\ub7c9\uc758 \uc5d4\uc9c4 \uad00\ub9ac \uc2dc\uc2a4\ud15c\uc740 \uc774 \ub450 \uac00\uc9c0 \ubcc0\uc218\ub97c \uc81c\uc5b4\ud558\ub3c4\ub85d \uc138\uc2ec\ud558\uac8c \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"-the-stoichiometric-air-fuel-ratio-a-delicate-balance-\"><strong>\ud654\ud559\uc591\ub860\uc801 \uacf5\uc5f0\ube44: \uc12c\uc138\ud55c \uade0\ud615<\/strong><\/h3>\n\n\n\n<p>\ubcc0\ud658\uae30\uac00 \ud658\uc6d0 \ubc18\uc751\uacfc \uc0b0\ud654 \ubc18\uc751\uc744 \ubaa8\ub450 \ud6a8\uacfc\uc801\uc73c\ub85c \uc218\ud589\ud558\ub824\uba74 \uc5d4\uc9c4\uc774 \ud654\ud559\uc591\ub860\uc801 \uacf5\uc5f0\ube44 \ub610\ub294 \uadf8 \ube44\uc728\uc5d0 \ub9e4\uc6b0 \uac00\uae5d\uac8c \uc791\ub3d9\ud574\uc57c \ud569\ub2c8\ub2e4. \uac00\uc194\ub9b0\uc758 \uacbd\uc6b0, \uc774 \ube44\uc728\uc740 \uc9c8\ub7c9 \uae30\uc900\uc73c\ub85c \uc57d 14.7:1(\uacf5\uae30 \ub300 \uc5f0\ub8cc)\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ud63c\ud569\ubb3c\uc774 \ub108\ubb34 \uc9c4\ud558\uba74(\uc5f0\ub8cc\uac00 \ub108\ubb34 \ub9ce\uc73c\uba74)<\/strong>, CO\uc640 HC\ub97c \uc644\uc804\ud788 \uc0b0\ud654\uc2dc\ud0ac \uc218 \uc788\ub294 \uc0b0\uc18c\uac00 \ucda9\ubd84\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ud63c\ud569\ubb3c\uc774 \ub108\ubb34 \ud76c\ubc15\ud558\uba74(\uacf5\uae30\uac00 \ub108\ubb34 \ub9ce\uc73c\uba74)<\/strong>, \uacfc\uc789 \uc0b0\uc18c\ub294 \ub85c\ub4d0 \ucd09\ub9e4\uac00 NOx \ubd84\uc790\ub85c\ubd80\ud130 \uc0b0\uc18c\ub97c \ud6a8\uacfc\uc801\uc73c\ub85c \uc81c\uac70\ud560 \uc218 \uc5c6\uae30 \ub54c\ubb38\uc5d0 NOx\uc758 \ud658\uc6d0\uc744 \uc800\ud574\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p>&#034;\uc2a4\uc704\ud2b8 \uc2a4\ud31f&#034;\uc740&nbsp;<strong>3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30<\/strong>&nbsp;\uc774 \ud654\ud559\uc591\ub860\uc801 \uc9c0\uc810\uc744 \ub458\ub7ec\uc2fc \ub9e4\uc6b0 \uc881\uc740 \ucc3d\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uade0\ud615\uc744 \uc720\uc9c0\ud558\uae30 \uc704\ud574 \ucc28\ub7c9\uc740 \ud3d0\ub8e8\ud504 \ud53c\ub4dc\ubc31 \uc2dc\uc2a4\ud15c\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \ucee8\ubc84\ud130 \uc804\ud6c4\uc758 \ubc30\uae30\uac00\uc2a4 \ud750\ub984\uc5d0 \ubc30\uce58\ub41c \uc0b0\uc18c \uc13c\uc11c(\ub610\ub294 O2 \uc13c\uc11c)\ub294 \uc0b0\uc18c \ud568\ub7c9\uc744 \uc9c0\uc18d\uc801\uc73c\ub85c \uce21\uc815\ud569\ub2c8\ub2e4. \uc774 \ub370\uc774\ud130\ub294 \uc5d4\uc9c4 \uc81c\uc5b4 \uc7a5\uce58(ECU)\ub85c \uc804\uc1a1\ub418\uace0, ECU\ub294 \uacf5\uc5f0\ube44\uc758 \uc644\ubcbd\ud55c \uade0\ud615\uc744 \uc720\uc9c0\ud558\uae30 \uc704\ud574 \uc5f0\ub8cc \ubd84\uc0ac\ub7c9\uc744 \uc2e4\uc2dc\uac04\uc73c\ub85c \uc870\uc815\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"-the-light-off-temperature-the-need-for-heat-\"><strong>\ubd88\uc774 \uaebc\uc9c8 \ub54c\uc758 \uc628\ub3c4: \uc5f4\uc758 \ud544\uc694\uc131<\/strong><\/h3>\n\n\n\n<p>\ucd09\ub9e4\ub294 \ud654\ud559\uc801\uc73c\ub85c \ud65c\uc131\ud654\ub418\uae30 \uc704\ud574 \ucd5c\uc18c \uc628\ub3c4\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc774 \uc628\ub3c4\ub97c &#034;\uc810\ud654 \uc628\ub3c4&#034;\ub77c\uace0 \ud558\uba70, \uc77c\ubc18\uc801\uc73c\ub85c 250\u00b0C\uc5d0\uc11c 300\u00b0C(482\u00b0F\uc5d0\uc11c 572\u00b0F) \uc0ac\uc774\uc785\ub2c8\ub2e4. \uc774 \uc628\ub3c4 \uc774\ud558\uc5d0\uc11c\ub294 \ubcc0\ud658\uae30\uac00 \ubc30\uae30\uac00\uc2a4 \uc815\ud654\uc5d0 \uac70\uc758 \uad00\uc5ec\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc774\uac83\uc774 \ubc14\ub85c &#034;\ucf5c\ub4dc \uc2a4\ud0c0\ud2b8&#034; \ub3d9\uc548 \ucc28\ub7c9\uc758 \ubc30\ucd9c\ub7c9\uc774 \uac00\uc7a5 \ub192\uc740 \uc774\uc720\uc785\ub2c8\ub2e4. \uc5d4\uc9c4\uc774 \ucc98\uc74c \uc2dc\ub3d9\ub420 \ub54c \ubc30\uae30\uac00\uc2a4\uc640 \ucee8\ubc84\ud130\ub294 \ucc28\uac11\uc2b5\ub2c8\ub2e4. \ucee8\ubc84\ud130\uac00 \uc2dc\ub3d9 \uc628\ub3c4\uc5d0 \ub3c4\ub2ec\ud558\ub294 \ub370 \uba87 \ubd84 \uc815\ub3c4 \uac78\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc608\uc5f4 \uae30\uac04 \ub3d9\uc548 \ucc98\ub9ac\ub418\uc9c0 \uc54a\uc740 \uc624\uc5fc \ubb3c\uc9c8\uc740 \ubc30\uae30\uad00\uc744 \ud1b5\ud574 \ubc14\ub85c \ubc30\ucd9c\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc774 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574 \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc740 \uba87 \uac00\uc9c0 \uc804\ub7b5\uc744 \uac1c\ubc1c\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uadfc\uc811 \uacb0\ud569 \ucd09\ub9e4(CCC):<\/strong>&nbsp;\uc5ec\uae30\uc5d0\ub294 \ub354 \uc791\uc740 \uc608\ube44 \ucd09\ub9e4 \ubcc0\ud658\uae30\ub97c \uc5d4\uc9c4 \ubc30\uae30 \ub9e4\ub2c8\ud3f4\ub4dc\uc5d0 \ud6e8\uc52c \ub354 \uac00\uae5d\uac8c \ubc30\uce58\ud558\ub294 \uac83\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4. \uc5f4\uc6d0\uc5d0 \ub354 \uac00\uae4c\uc774 \ubc30\uce58\ud558\uba74 \uc810\ud654 \uc628\ub3c4\uc5d0 \ud6e8\uc52c \ub354 \ube68\ub9ac \ub3c4\ub2ec\ud560 \uc218 \uc788\uc73c\uba70, \uc885\uc885 20\ucd08 \uc774\ub0b4\uc5d0 \ub3c4\ub2ec\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc804\uae30 \uac00\uc5f4 \ucd09\ub9e4(EHC):<\/strong>&nbsp;\uc77c\ubd80 \ucca8\ub2e8 \uc2dc\uc2a4\ud15c\uc740 \uc5d4\uc9c4 \uc2dc\ub3d9 \uc804\uc774\ub098 \uc9c1\ud6c4\uc5d0 \uc804\uae30 \ud788\ud130\ub97c \uc0ac\uc6a9\ud558\uc5ec \ucee8\ubc84\ud130\ub97c \uc608\uc5f4\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub0c9\uac04 \uc2dc\ub3d9 \uc2dc \ud0c4\ud654\uc218\uc18c \ubc30\ucd9c\ub7c9\uc744 \ud06c\uac8c \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"-chapter-5-broader-impact-and-modern-applications-\"><strong>5\uc7a5: \ub354 \uad11\ubc94\uc704\ud55c \uc601\ud5a5\uacfc \ud604\ub300\uc801 \uc751\uc6a9<\/strong><\/h2>\n\n\n\n<p>\uadf8\ub9cc\ud07c&nbsp;<strong>3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30<\/strong>&nbsp;\uc790\ub3d9\ucc28\uc758 \ub2e8\uc21c\ud55c \ubd80\ud488\uc774 \uc544\ub2c8\ub77c \uc9c0\uad6c \ud658\uacbd \ubcf4\ud638\uc758 \uae30\ubc18 \uae30\uc220\uc785\ub2c8\ub2e4. \uc774 \uae30\uc220\uc758 \uad11\ubc94\uc704\ud55c \ub3c4\uc785\uc740 \uc804 \uc138\uacc4 \ub3c4\uc2dc\uc758 \ub300\uae30 \uc624\uc5fc\uc744 \ub300\ud3ed \uac10\uc18c\uc2dc\ud0a4\ub294 \ub370 \uc9c1\uc811\uc801\uc778 \uc5ed\ud560\uc744 \ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc774 \uae30\uc220\uc740 \uc77c\ubc18 \uc2b9\uc6a9\ucc28 \uc678\uc5d0\ub3c4 \ub0b4\uc5f0\uae30\uad00\uc744 \uc0ac\uc6a9\ud558\ub294 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0 \uc801\uc6a9\ub429\ub2c8\ub2e4. \uc5ec\uae30\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud2b8\ub7ed\uacfc \ubc84\uc2a4<\/li>\n\n\n\n<li>\uc624\ud1a0\ubc14\uc774<\/li>\n\n\n\n<li>\uc9c0\uac8c\ucc28 \ubc0f \uad11\uc0b0 \uc7a5\ube44<\/li>\n\n\n\n<li>\uc804\uae30 \ubc1c\uc804\uae30<\/li>\n\n\n\n<li>\uae30\uad00\ucc28 \ubc0f \uc120\ubc15<\/li>\n\n\n\n<li>\uc77c\ubd80 \uace0\uae09 \ubaa9\uc7ac \uc5f0\uc18c \uc2a4\ud1a0\ube0c\ub294 \ubbf8\ub9bd\uc790 \ubc0f \uac00\uc2a4 \ubc30\ucd9c\uc744 \uc81c\uc5b4\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p>\uac01\uac01\uc758 \uacbd\uc6b0, \uc0bc\uc6d0 \ucd09\ub9e4 \ubc18\uc751\uc758 \ud575\uc2ec \uc6d0\ub9ac\ub294 \ud2b9\uc815 \uaddc\uc815 \ubc0f \uc791\ub3d9 \uc870\uac74\uc744 \ucda9\uc871\ud558\ub3c4\ub85d \uc870\uc815\ub429\ub2c8\ub2e4. \uc774 \uae30\uc220\uc758 \uc9c0\uc18d\uc801\uc778 \ubc1c\uc804\uc740 \uc720\ub7fd\uc758 \uc720\ub85c(Euro) \uae30\uc900\uacfc \ubbf8\uad6d\uc758 EPA(\ud658\uacbd\ubcf4\ud638\uccad)\uac00 \uc81c\uc815\ud55c Tier \uae30\uc900\uacfc \uac19\uc774 \uc810\uc810 \ub354 \uc5c4\uaca9\ud574\uc9c0\ub294 \ubc30\ucd9c \uae30\uc900\uc5d0 \ud798\uc785\uc5b4 \uc774\ub8e8\uc5b4\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"-conclusion-\"><strong>\uacb0\ub860<\/strong><\/h2>\n\n\n\n<p>\uadf8\ub9cc\ud07c&nbsp;<strong>3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30<\/strong>&nbsp;\ud604\ub300 \uc790\ub3d9\ucc28 \uae30\uc220\uc758 \uc228\uc740 \uc601\uc6c5\uc785\ub2c8\ub2e4. \ub9c8\uce58 \uc18c\ud615\uc758 \uc815\uad50\ud55c \ud654\ud559 \ucc98\ub9ac \uacf5\uc7a5\ucc98\ub7fc, \ubcf5\uc7a1\ud55c \ud658\uc6d0 \ubc0f \uc0b0\ud654 \ubc18\uc751\uc744 \uc218\ud589\ud569\ub2c8\ub2e4. \ubc31\uae08, \ud314\ub77c\ub4d0, \ub85c\ub4d0\uc758 \ud798\uc744 \uc774\uc6a9\ud558\uc5ec \uc720\ub3c5\ud55c \uc5d4\uc9c4 \ubc30\uae30\uac00\uc2a4\ub97c \ub300\uccb4\ub85c \ubb34\ud574\ud55c \uae30\uccb4\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4. \uc774 \uae30\uc220\uc758 \uac1c\ubc1c\uc740 \uc810\ucc28 \uc2ec\uac01\ud574\uc9c0\ub294 \ud658\uacbd \uc704\uae30\uc5d0 \uc9c1\uc811\uc801\uc774\uace0 \ud6a8\uacfc\uc801\uc73c\ub85c \ub300\uc751\ud588\uc2b5\ub2c8\ub2e4. \uad50\ud1b5\uc758 \ubbf8\ub798\ub294 \uc804\uae30 \uc790\ub3d9\ucc28\uc5d0 \ub2ec\ub824 \uc788\uaca0\uc9c0\ub9cc, \ub0b4\uc5f0 \uae30\uad00\uc740 \uc55e\uc73c\ub85c\ub3c4 \uc218\uc2ed \ub144 \ub3d9\uc548 \ub110\ub9ac \uc0ac\uc6a9\ub420 \uac83\uc785\ub2c8\ub2e4. \ub0b4\uc5f0 \uae30\uad00\uc774 \uacc4\uc18d \uc0ac\uc6a9\ub418\ub294 \ud55c, \uc0bc\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30\uc758 \uc9c0\uc18d\uc801\uc778 \uac1c\uc120\uacfc \uc801\uc6a9\uc740 \uc6b0\ub9ac\uac00 \ub9c8\uc2dc\ub294 \uacf5\uae30\uc640 \uc9c0\uad6c\uc758 \uac74\uac15\uc744 \ubcf4\ud638\ud558\ub294 \ub370 \ud544\uc218\uc801\uc77c \uac83\uc785\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>3\uc6d0 \ucd09\ub9e4 \ubcc0\ud658\uae30\uc5d0 \ub300\ud55c \uc644\ubcbd\ud55c \uac00\uc774\ub4dc\ub97c \uc0b4\ud3b4\ubcf4\uc138\uc694. \uad6c\uc131 \uc694\uc18c, \ud654\ud559 \ubc18\uc751, \ud604\ub300 \uc790\ub3d9\ucc28\uc5d0\uc11c\uc758 \uc911\uc694\ud55c \uc5ed\ud560\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc138\uc694.<\/p>","protected":false},"author":1,"featured_media":1807,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAowgdPcCw:productID":"","footnotes":""},"categories":[98],"tags":[103,112,104,106,109,110,32,111,102,107,101,108,105,113,100,99],"class_list":["post-1794","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guide","tag-3-way-catalytic-converter","tag-automotive-catalyst","tag-car-emissions-control","tag-catalytic-converter","tag-catalytic-converter-function","tag-cold-start-emissions","tag-exhaust-system","tag-how-catalytic-converters-work","tag-nox-reduction","tag-oxidation-catalyst","tag-palladium","tag-platinum","tag-reduction-catalyst","tag-rhodium","tag-stoichiometric-ratio","tag-three-way-catalytic-converter-2"],"_links":{"self":[{"href":"https:\/\/3waycatalyst.com\/ko\/wp-json\/wp\/v2\/posts\/1794","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3waycatalyst.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/3waycatalyst.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/ko\/wp-json\/wp\/v2\/comments?post=1794"}],"version-history":[{"count":0,"href":"https:\/\/3waycatalyst.com\/ko\/wp-json\/wp\/v2\/posts\/1794\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/ko\/wp-json\/wp\/v2\/media\/1807"}],"wp:attachment":[{"href":"https:\/\/3waycatalyst.com\/ko\/wp-json\/wp\/v2\/media?parent=1794"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/3waycatalyst.com\/ko\/wp-json\/wp\/v2\/categories?post=1794"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/3waycatalyst.com\/ko\/wp-json\/wp\/v2\/tags?post=1794"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}