{"id":60966,"date":"2023-04-21T14:52:25","date_gmt":"2023-04-21T19:52:25","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-is-biodiesel-different-from-diesel\/"},"modified":"2025-01-27T06:06:32","modified_gmt":"2025-01-27T11:06:32","slug":"how-is-biodiesel-different-from-diesel","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/how-is-biodiesel-different-from-diesel\/","title":{"rendered":"Biodiesel vs. nafta: rozd\u00edly a vlastnosti"},"content":{"rendered":"<p>Biodiesel a nafta: kl\u00ed\u010dov\u00e9 rozd\u00edly<\/p>\n<p>Biodiesel a nafta, a\u010dkoliv se oba pou\u017e\u00edvaj\u00ed jako paliva v dieselov\u00fdch motorech, se li\u0161\u00ed v mnoha d\u016fle\u017eit\u00fdch aspektech, od sv\u00e9ho p\u016fvodu a slo\u017een\u00ed a\u017e po vliv na \u017eivotn\u00ed prost\u0159ed\u00ed.  Pochopen\u00ed t\u011bchto rozd\u00edl\u016f je kl\u00ed\u010dov\u00e9 pro spr\u00e1vn\u00e9 pochopen\u00ed jejich vlastnost\u00ed a aplikac\u00ed.<\/p>\n<p>P\u016fvod a v\u00fdroba<\/p>\n<p>Nafta je fosiln\u00ed palivo, z\u00edskan\u00e9 z ropy, komplexn\u00ed sm\u011bsi uhlovod\u00edk\u016f. Jej\u00ed t\u011b\u017eba, zpracov\u00e1n\u00ed a p\u0159eprava jsou energeticky n\u00e1ro\u010dn\u00e9 a spojen\u00e9 s negativn\u00edmi environment\u00e1ln\u00edmi dopady. Biodiesel, na druhou stranu, je obnoviteln\u00e9 palivo vyroben\u00e9 z rostlinn\u00fdch olej\u016f a \u017eivo\u010di\u0161n\u00fdch tuk\u016f.  Proces v\u00fdroby zahrnuje transesterifikaci, chemickou reakci, kter\u00e1 p\u0159em\u011b\u0148uje triglyceridy v oleji na methylestery mastn\u00fdch kyselin (FAME), hlavn\u00ed slo\u017eku biodieselu.  Tento proces umo\u017e\u0148uje pou\u017eit\u00ed \u0161irok\u00e9 \u0161k\u00e1ly surovin, od \u0159epkov\u00e9ho oleje a s\u00f3jov\u00e9ho oleje a\u017e po pou\u017eit\u00e9 kuchy\u0148sk\u00e9 oleje.<\/p>\n<p>Chemick\u00e9 slo\u017een\u00ed<\/p>\n<p>Hlavn\u00ed rozd\u00edl mezi naftou a biodieselem spo\u010d\u00edv\u00e1 v jejich chemick\u00e9m slo\u017een\u00ed. Nafta je sm\u011bs\u00ed uhlovod\u00edk\u016f s dlouh\u00fdmi \u0159et\u011bzci, zat\u00edmco biodiesel se skl\u00e1d\u00e1 prim\u00e1rn\u011b z methylester\u016f mastn\u00fdch kyselin. Tato rozd\u00edln\u00e1 struktura ovliv\u0148uje vlastnosti paliva, jako je viskozita, bod vzplanut\u00ed a cetanov\u00e9 \u010d\u00edslo.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Vlastnost<\/th>\n<th>Nafta<\/th>\n<th>Biodiesel<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Hlavn\u00ed slo\u017eky<\/td>\n<td>Uhlovod\u00edky s dlouh\u00fdmi \u0159et\u011bzci<\/td>\n<td>Methylestery mastn\u00fdch kyselin<\/td>\n<\/tr>\n<tr>\n<td>Viskozita<\/td>\n<td>Vy\u0161\u0161\u00ed<\/td>\n<td>Ni\u017e\u0161\u00ed<\/td>\n<\/tr>\n<tr>\n<td>Bod vzplanut\u00ed<\/td>\n<td>Vy\u0161\u0161\u00ed<\/td>\n<td>Ni\u017e\u0161\u00ed<\/td>\n<\/tr>\n<tr>\n<td>Cetanov\u00e9 \u010d\u00edslo<\/td>\n<td>Ni\u017e\u0161\u00ed<\/td>\n<td>Vy\u0161\u0161\u00ed<\/td>\n<\/tr>\n<tr>\n<td>Hustota<\/td>\n<td>Vy\u0161\u0161\u00ed<\/td>\n<td>Ni\u017e\u0161\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Environment\u00e1ln\u00ed dopad<\/p>\n<p>Biodiesel se obecn\u011b pova\u017euje za ekologi\u010dt\u011bj\u0161\u00ed alternativu k naft\u011b. Jeho v\u00fdroba sice vy\u017eaduje energii, ale celkov\u00e1 uhl\u00edkov\u00e1 stopa je mnohem ni\u017e\u0161\u00ed, jeliko\u017e rostliny b\u011bhem fotosynt\u00e9zy absorbuj\u00ed oxid uhli\u010dit\u00fd z atmosf\u00e9ry.  Spalov\u00e1n\u00ed biodieselu produkuje m\u00e9n\u011b \u0161kodliv\u00fdch emis\u00ed, jako jsou \u010d\u00e1stice a oxidy dus\u00edku, ne\u017e spalov\u00e1n\u00ed nafty.  Nicm\u00e9n\u011b, v\u00fdroba biodieselu m\u016f\u017ee m\u00edt i negativn\u00ed environment\u00e1ln\u00ed dopady, nap\u0159\u00edklad odles\u0148ov\u00e1n\u00ed pro p\u011bstov\u00e1n\u00ed olejnin.  V\u00fdb\u011br surovin pro v\u00fdrobu biodieselu je proto kl\u00ed\u010dov\u00fd pro minimalizaci negativn\u00edch dopad\u016f.<\/p>\n<p>Vliv na motor<\/p>\n<p>Biodiesel je obecn\u011b kompatibiln\u00ed s dieselov\u00fdmi motory, ale v n\u011bkter\u00fdch p\u0159\u00edpadech m\u016f\u017ee vy\u017eadovat men\u0161\u00ed \u00fapravy.  Jeho ni\u017e\u0161\u00ed viskozita m\u016f\u017ee v\u00e9st k men\u0161\u00edmu opot\u0159eben\u00ed n\u011bkter\u00fdch \u010d\u00e1st\u00ed motoru.  Na druhou stranu, jeho vy\u0161\u0161\u00ed cetanov\u00e9 \u010d\u00edslo m\u016f\u017ee zlep\u0161it spalov\u00e1n\u00ed a sn\u00ed\u017eit emise.  Nicm\u00e9n\u011b, biodiesely mohou b\u00fdt n\u00e1chyln\u011bj\u0161\u00ed k oxidaci a tvorb\u011b usazenin, co\u017e m\u016f\u017ee vy\u017eadovat \u010dast\u011bj\u0161\u00ed \u00fadr\u017ebu.<\/p>\n<p>Z\u00e1v\u011br<\/p>\n<p>Biodiesel a nafta se li\u0161\u00ed v mnoha ohledech, od sv\u00e9ho p\u016fvodu a chemick\u00e9ho slo\u017een\u00ed a\u017e po environment\u00e1ln\u00ed dopady a vliv na motor.  A\u010dkoliv biodiesel p\u0159edstavuje ekologi\u010dt\u011bj\u0161\u00ed alternativu k naft\u011b, je d\u016fle\u017eit\u00e9 zv\u00e1\u017eit v\u0161echny aspekty jeho pou\u017eit\u00ed, v\u010detn\u011b v\u00fdb\u011bru surovin a potenci\u00e1ln\u00edch probl\u00e9m\u016f s kompatibilitou s dieselov\u00fdmi motory.  D\u016fkladn\u00e9 pochopen\u00ed t\u011bchto rozd\u00edl\u016f je nezbytn\u00e9 pro spr\u00e1vn\u00e9 vyu\u017eit\u00ed obou paliv.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Biodiesel a nafta: kl\u00ed\u010dov\u00e9 rozd\u00edly Biodiesel a nafta, a\u010dkoliv se oba pou\u017e\u00edvaj\u00ed jako paliva v dieselov\u00fdch motorech, se li\u0161\u00ed v mnoha d\u016fle\u017eit\u00fdch aspektech, od sv\u00e9ho p\u016fvodu a slo\u017een\u00ed a\u017e po vliv na \u017eivotn\u00ed prost\u0159ed\u00ed. Pochopen\u00ed t\u011bchto rozd\u00edl\u016f je kl\u00ed\u010dov\u00e9 pro spr\u00e1vn\u00e9 pochopen\u00ed jejich vlastnost\u00ed a aplikac\u00ed. P\u016fvod a v\u00fdroba Nafta je fosiln\u00ed palivo, z\u00edskan\u00e9 z<\/p>\n","protected":false},"author":1,"featured_media":26458,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-60966","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/60966","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/comments?post=60966"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/60966\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/26458"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=60966"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=60966"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=60966"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}