{"id":1338,"date":"2017-02-21T10:41:03","date_gmt":"2017-02-21T09:41:03","guid":{"rendered":"http:\/\/greenchemholding@gmail.com\/?p=170"},"modified":"2019-01-28T15:43:29","modified_gmt":"2019-01-28T14:43:29","slug":"greenchem-has-a-new-product-12","status":"publish","type":"post","link":"https:\/\/greenchemstaging.maarevenonline.nl\/cs\/greenchem-has-a-new-product-12\/","title":{"rendered":"Co je syst\u00e9m SCR?"},"content":{"rendered":"

253 milion\u016f\u2026 To je po\u010det automobil\u016f, kter\u00e9 ka\u017ed\u00fd den jezd\u00ed po evropsk\u00fdch silnic\u00edch1<\/sup>. To je docela hodn\u011b, \u017ee? Jen to ukazuje, jak d\u016fle\u017eit\u00e1 jsou automobily pro n\u00e1\u0161 ka\u017edodenn\u00ed \u017eivot.
\n3 % z t\u011bchto 253 milion\u016f (tj. 7,59 milionu) p\u0159edstavuj\u00ed nov\u00e9 automobily prodan\u00e9 v roce 2015, z nich\u017e 49 % tvo\u0159\u00ed automobily s dieselov\u00fdmi motory.<\/p>\n

Jak pravd\u011bpodobn\u011b v\u00edte, v\u011bt\u0161ina dne\u0161n\u00edch velk\u00fdch m\u011bst bojuje proti dieselov\u00fdm automobil\u016fm<\/strong> a tvrd\u00ed, \u017ee tento druh voz\u016f nem\u00e1 ve m\u011bst\u011b co d\u011blat a mus\u00ed z na\u0161ich silnic co nejd\u0159\u00edve zmizet.
\nPro\u010d se tak sna\u017e\u00ed dostat dieselov\u00e9 automobily z m\u011bsta? P\u0159edev\u0161\u00edm kv\u016fli jednomu z hlavn\u00edch probl\u00e9m\u016f dne\u0161n\u00edch dieselov\u00fdch automobil\u016f, produkci slou\u010denin zvan\u00fdch NOx. Tato molekula \u0161kod\u00ed zdrav\u00ed (jako v\u0161echny jemn\u00e9 \u010d\u00e1stice) a kdy\u017e je na jednom m\u00edst\u011b shrom\u00e1\u017ed\u011bno hodn\u011b lid\u00ed, ch\u00e1peme, \u017ee je starostov\u00e9 cht\u011bj\u00ed chr\u00e1nit.<\/p>\n

\"\"<\/p>\n

Co v\u0161ak<\/strong> na\u0161i politici zapomn\u011bli \u0159\u00edci je, \u017ee d\u00edky p\u0159\u00edsn\u011bj\u0161\u00edm EURO p\u0159edpis\u016fm pro emisn\u00ed hladiny odvedl automobilov\u00fd pr\u016fmysl hodn\u011b pr\u00e1ce a zredukoval emise t\u00e9m\u011b\u0159 na nulu.V\u00a0sou\u010dasnosti jsou na trhu dostupn\u00e9 dva hlavn\u00ed syst\u00e9my<\/strong>. EGR<\/strong> a SCR<\/strong> syst\u00e9m. V ned\u00e1vn\u00e9 dob\u011b studie prov\u00e1d\u011bn\u00e1 Evropskou asociac\u00ed pro p\u0159epravu a \u017eivotn\u00ed prost\u0159ed\u00ed uk\u00e1zala, \u017ee syst\u00e9m SCR je mnohem \u00fa\u010dinn\u011bj\u0161\u00ed,<\/strong> ne\u017e syst\u00e9m EGR. Co je tedy syst\u00e9m SCR? Jak funguje ve va\u0161em aut\u011b?<\/p>\n

 <\/p>\n

Co je syst\u00e9m SCR a kde se ve Va\u0161em aut\u011b nach\u00e1z\u00ed? <\/u><\/em><\/strong><\/h3>\n

SCR, \u201eselektivn\u00ed katalytick\u00fd reduk\u010dn\u00ed syst\u00e9m\u201c je zp\u016fsob, jak konvertovat oxidy dus\u00edku (NOx) na vodu a dus\u00edk (bez oxid\u016f).<\/p>\n

 <\/p>\n

\"Emission<\/p>\n

 <\/p>\n

Jak uv\u00e1d\u00ed diagram, roztok AdBlue\u00ae (32,5 % mo\u010doviny + 67,5 % \u010dist\u00e9 vody) se vst\u0159ikuje do SCR katalyz\u00e1toru. V\u00a0kataliz\u00e1toru doch\u00e1z\u00ed k\u00a0reakci, kter\u00e1 p\u0159em\u011bn\u00ed NOx na H2<\/sub>O a N2<\/sub><\/p>\n

 <\/p>\n

\u00a0Jak SRC pracuje? <\/u><\/em><\/h3>\n

 <\/p>\n

Pro zjednodu\u0161en\u00ed \u0159ekn\u011bme, \u017ee se v SRC katalyz\u00e1toru odehr\u00e1v\u00e1 mnoho reakc\u00ed<\/strong>. AdBlue je vst\u0159ikov\u00e1no a reakce t\u00e9to kapaliny s prvky p\u0159\u00edtomn\u00fdmi v katalyz\u00e1toru a s NOx vede k 90% redukci NOx<\/strong> na konci v\u00fdfukov\u00e9ho potrub\u00ed. Po t\u00e9to reakci ji\u017e najdete jen dus\u00edk, vodu a oxid uhli\u010dit\u00fd (N2<\/sub>, H2<\/sub>O a \u010d\u00e1st CO2<\/sub>).
\nAby mohl plyn p\u0159ich\u00e1zej\u00edc\u00ed do SCR katalyz\u00e1toru pracovat s optim\u00e1ln\u00ed \u00fa\u010dinnost\u00ed, mus\u00ed m\u00edt ur\u010ditou teplotu.<\/strong> To znamen\u00e1, \u017ee v\u00fdfuk mus\u00ed b\u00fdt dostate\u010dn\u011b tepl\u00fd!<\/strong> Um\u00edst\u011bn\u00ed katalyz\u00e1toru ve v\u00fdfukov\u00e9m potrub\u00ed tedy nen\u00ed n\u00e1hodn\u00e9…<\/p>\n

N\u011bkte\u0159\u00ed v\u00fdrobci automobil\u016f, jako je PSA Peugeot Citro\u00ebn, se rozhodli zasadit sv\u00e9 SCR katalyz\u00e1tory p\u0159ed DOC katalyz\u00e1tor. D\u016fvodem je, \u017ee je tato pozice ide\u00e1ln\u00ed pro sni\u017eov\u00e1n\u00ed \u010dasu zah\u0159\u00edv\u00e1n\u00ed SCR katalyz\u00e1toru.<\/p>\n

 <\/p>\n

SCR nen\u00ed tak nov\u00fdm syst\u00e9mem, jak byste si mohli myslet<\/u><\/em><\/strong><\/h3>\n

 <\/p>\n

SCR katalyz\u00e1tor byl vyvinut v roce 1957<\/strong> americkou spole\u010dnost\u00ed Engelhard Corporation (dne\u0161n\u00ed BASF). Technologie SCR se od t\u00e9 doby v pr\u016fmyslu vyu\u017e\u00edv\u00e1 k redukci emis\u00ed NOx v pr\u016fmyslov\u00fdch z\u00e1vodech, lod\u00edch, vlac\u00edch a v mnoha dal\u0161\u00edch sektorech<\/strong>. Informace o odv\u011btv\u00edch najdete na na\u0161ich webov\u00fdch str\u00e1nk\u00e1ch: www.Adblue4you.com<\/a><\/p>\n

Technologie SCR se ji\u017e mnoho let pou\u017e\u00edv\u00e1 v p\u0159epravn\u00edm pr\u016fmyslu<\/strong>. Tato odborn\u00e1 znalost<\/strong> pomohla v\u00fdrobc\u016fm vyvinout p\u0159edn\u00ed \u0159e\u0161en\u00ed ve sni\u017eov\u00e1n\u00ed emis\u00ed NOx. V p\u0159edchoz\u00edm \u010dl\u00e1nku jsme uvedli, \u017ee d\u00edky t\u00e9to technologii n\u00e1kladn\u00ed v\u016fz vyroben\u00fd v roce 2016 vypou\u0161t\u00ed m\u00e9n\u011b NOx, ne\u017e automobil vyroben\u00fd v roce 2000\u2026<\/p>\n

 <\/p>\n

\"Turner<\/p>\n

 <\/p>\n

Budoucnost technologie SCR<\/u><\/em><\/strong><\/h3>\n

 <\/p>\n

Technologie SCR byla v posledn\u00edch letech schv\u00e1lena a zlep\u0161ov\u00e1na a sou\u010dasn\u00e9 studie proveden\u00e9 Evropskou komis\u00ed<\/strong> obvykle ukazuj\u00ed, \u017ee toto \u0159e\u0161en\u00ed, pou\u017e\u00edvan\u00e9 za spr\u00e1vn\u00fdch podm\u00ednek, je velmi dobr\u00fdm n\u00e1strojem v boji s emisemi NOx.<\/p>\n

Navzdory \u0161patn\u00e9 reputaci maj\u00ed DIESELOV\u00c1 vozidla kombinuj\u00edc\u00ed syst\u00e9m SCR a AdBlue velmi n\u00edzk\u00e9 \u00farovn\u011b emis\u00ed. Vypou\u0161t\u011bj\u00ed m\u00e9n\u011b CO2<\/sub> a spot\u0159ebov\u00e1vaj\u00ed m\u00e9n\u011b paliva, ne\u017e benzinov\u00e9 automobily.<\/p>\n

Na trh se pokusila proniknout n\u011bkter\u00e1 dal\u0161\u00ed \u0159e\u0161en\u00ed, ale nic neposkytovalo tak dobr\u00e9 v\u00fdsledky, jako AdBlue s technologi\u00ed SCR\u2026<\/p>\n

 <\/p>\n

\"Map<\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

253 milion\u016f\u2026 To je po\u010det automobil\u016f, kter\u00e9 ka\u017ed\u00fd den jezd\u00ed po evropsk\u00fdch silnic\u00edch1. To je docela hodn\u011b, \u017ee? Jen to ukazuje, jak d\u016fle\u017eit\u00e1 jsou automobily pro n\u00e1\u0161 ka\u017edodenn\u00ed \u017eivot. 3 % z t\u011bchto 253 milion\u016f (tj. 7,59 milionu) p\u0159edstavuj\u00ed nov\u00e9 automobily prodan\u00e9 v roce 2015, z nich\u017e 49 % tvo\u0159\u00ed automobily s dieselov\u00fdmi motory. Jak … \u010dt\u011bte v\u00edce<\/a><\/p>\n","protected":false},"author":6,"featured_media":2754,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[1046],"tags":[602,604,606],"class_list":["post-1338","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-scr_cz","tag-adblue4you-cs","tag-cleandiesel-cs","tag-scr-cs"],"acf":[],"_links":{"self":[{"href":"https:\/\/greenchemstaging.maarevenonline.nl\/cs\/wp-json\/wp\/v2\/posts\/1338","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/greenchemstaging.maarevenonline.nl\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/greenchemstaging.maarevenonline.nl\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/greenchemstaging.maarevenonline.nl\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/greenchemstaging.maarevenonline.nl\/cs\/wp-json\/wp\/v2\/comments?post=1338"}],"version-history":[{"count":6,"href":"https:\/\/greenchemstaging.maarevenonline.nl\/cs\/wp-json\/wp\/v2\/posts\/1338\/revisions"}],"predecessor-version":[{"id":3518,"href":"https:\/\/greenchemstaging.maarevenonline.nl\/cs\/wp-json\/wp\/v2\/posts\/1338\/revisions\/3518"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/greenchemstaging.maarevenonline.nl\/cs\/wp-json\/wp\/v2\/media\/2754"}],"wp:attachment":[{"href":"https:\/\/greenchemstaging.maarevenonline.nl\/cs\/wp-json\/wp\/v2\/media?parent=1338"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/greenchemstaging.maarevenonline.nl\/cs\/wp-json\/wp\/v2\/categories?post=1338"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/greenchemstaging.maarevenonline.nl\/cs\/wp-json\/wp\/v2\/tags?post=1338"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}