{"id":60961,"date":"2023-04-21T14:52:52","date_gmt":"2023-04-21T19:52:52","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-is-biodiesel-made\/"},"modified":"2025-01-27T06:06:33","modified_gmt":"2025-01-27T11:06:33","slug":"how-is-biodiesel-made","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/how-is-biodiesel-made\/","title":{"rendered":"Biodiesel: V\u00fdroba, procesy a technologie"},"content":{"rendered":"

Biodiesel je obnoviteln\u00e1 paliva, kter\u00e1 se st\u00e1v\u00e1 st\u00e1le d\u016fle\u017eit\u011bj\u0161\u00ed alternativou k fosiln\u00edm paliv\u016fm. Jeho v\u00fdroba je relativn\u011b jednoduch\u00e1 a vyu\u017e\u00edv\u00e1 odpadn\u00ed oleje a tuky, \u010d\u00edm\u017e sni\u017euje z\u00e1vislost na rop\u011b a z\u00e1rove\u0148 minimalizuje ekologick\u00fd dopad. Tento \u010dl\u00e1nek se podrobn\u011bji zam\u011b\u0159\u00ed na proces v\u00fdroby biodieselu.<\/p>\n

Suroviny pro v\u00fdrobu biodieselu<\/p>\n

Z\u00e1kladn\u00ed surovinou pro v\u00fdrobu biodieselu jsou rostlinn\u00e9 oleje a \u017eivo\u010di\u0161n\u00e9 tuky. Mohou to b\u00fdt jak \u010dist\u00e9 oleje (nap\u0159. \u0159epkov\u00fd, s\u00f3jov\u00fd, slune\u010dnicov\u00fd), tak i odpadn\u00ed oleje z restaurac\u00ed, pr\u016fmyslu nebo pou\u017eit\u00fd fritovac\u00ed olej. Kvalita suroviny ovliv\u0148uje kone\u010dn\u00fd produkt a proces v\u00fdroby. Olej s vysok\u00fdm obsahem voln\u00fdch mastn\u00fdch kyselin vy\u017eaduje p\u0159ed zpracov\u00e1n\u00edm dal\u0161\u00ed \u00fapravu, nap\u0159\u00edklad esterifikaci.<\/p>\n\n\n\n\n\n\n\n
Surovina<\/th>\nV\u00fdhody<\/th>\nNev\u00fdhody<\/th>\n<\/tr>\n<\/thead>\n
\u010cist\u00e9 rostlinn\u00e9 oleje<\/td>\nVysok\u00e1 kvalita, snadn\u00e9 zpracov\u00e1n\u00ed<\/td>\nVy\u0161\u0161\u00ed cena, konkuren\u010dn\u00ed tlak s potravin\u00e1\u0159stv\u00edm<\/td>\n<\/tr>\n
Odpadn\u00ed oleje<\/td>\nNi\u017e\u0161\u00ed cena, recyklace odpadu<\/td>\nNutn\u00e1 p\u0159ed\u00faprava, prom\u011bnliv\u00e1 kvalita<\/td>\n<\/tr>\n
\u017divo\u010di\u0161n\u00e9 tuky<\/td>\nDostupnost, alternativa k rostlinn\u00fdm olej\u016fm<\/td>\nMohou ovlivnit kvalitu biodieselu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Transesterifikace \u2013 kl\u00ed\u010dov\u00fd proces v\u00fdroby biodieselu<\/p>\n

Hlavn\u00ed proces v\u00fdroby biodieselu je transesterifikace. Jedn\u00e1 se o chemickou reakci, p\u0159i kter\u00e9 se triglyceridy (estry glycerolu a mastn\u00fdch kyselin) v oleji nebo tuku reaguj\u00ed s alkoholem (obvykle methanolem) za p\u0159\u00edtomnosti katalyz\u00e1toru (obvykle hydroxidu sodn\u00e9ho nebo draseln\u00e9ho). V\u00fdsledkem t\u00e9to reakce je sm\u011bs methylester\u016f mastn\u00fdch kyselin (biodiesel) a glycerolu. Glycerol je cenn\u00fd vedlej\u0161\u00ed produkt, kter\u00fd se vyu\u017e\u00edv\u00e1 v kosmetick\u00e9m a farmaceutick\u00e9m pr\u016fmyslu.<\/p>\n

Proces \u010di\u0161t\u011bn\u00ed a separace<\/p>\n

Po transesterifikaci je nutn\u00e9 produkt o\u010distit a odd\u011blit biodiesel od glycerolu. To se prov\u00e1d\u00ed pomoc\u00ed sedimentace, centrifugace nebo jin\u00fdch separa\u010dn\u00edch technik. Kvalita \u010di\u0161t\u011bn\u00ed m\u00e1 velk\u00fd vliv na vlastnosti kone\u010dn\u00e9ho biodieselu a jeho spln\u011bn\u00ed norem. V n\u011bkter\u00fdch p\u0159\u00edpadech se pou\u017e\u00edvaj\u00ed i postupy pro odstra\u0148ov\u00e1n\u00ed zbytk\u016f katalyz\u00e1toru a dal\u0161\u00edch ne\u017e\u00e1douc\u00edch l\u00e1tek.<\/p>\n

Kontrola kvality biodieselu<\/p>\n

Kvalita vyroben\u00e9ho biodieselu se kontroluje podle p\u0159\u00edsn\u00fdch norem, kter\u00e9 ur\u010duj\u00ed jeho fyzik\u00e1ln\u011b-chemick\u00e9 vlastnosti, jako je viskozita, bod vzplanut\u00ed, obsah vody a voln\u00fdch mastn\u00fdch kyselin. Dodr\u017een\u00ed t\u011bchto norem je nezbytn\u00e9 pro zaji\u0161t\u011bn\u00ed spr\u00e1vn\u00e9 funkce motor\u016f a minimalizaci negativn\u00edho dopadu na \u017eivotn\u00ed prost\u0159ed\u00ed.<\/p>\n

Z\u00e1v\u011br<\/p>\n

V\u00fdroba biodieselu je komplexn\u00ed proces, kter\u00fd zahrnuje v\u00fdb\u011br vhodn\u00fdch surovin, transesterifikaci, \u010di\u0161t\u011bn\u00ed a kontrolu kvality. A\u010dkoliv je tato metoda relativn\u011b jednoduch\u00e1, vy\u017eaduje dodr\u017eov\u00e1n\u00ed p\u0159esn\u00fdch postup\u016f a pe\u010dlivou kontrolu kvality, aby byl zaru\u010den kvalitn\u00ed a bezpe\u010dn\u00fd produkt. Biodiesel p\u0159edstavuje d\u016fle\u017eitou sou\u010d\u00e1st p\u0159echodu k udr\u017eiteln\u00fdm zdroj\u016fm energie a sni\u017eov\u00e1n\u00ed z\u00e1vislosti na fosiln\u00edch palivech.<\/p>\n","protected":false},"excerpt":{"rendered":"

Biodiesel je obnoviteln\u00e1 paliva, kter\u00e1 se st\u00e1v\u00e1 st\u00e1le d\u016fle\u017eit\u011bj\u0161\u00ed alternativou k fosiln\u00edm paliv\u016fm. Jeho v\u00fdroba je relativn\u011b jednoduch\u00e1 a vyu\u017e\u00edv\u00e1 odpadn\u00ed oleje a tuky, \u010d\u00edm\u017e sni\u017euje z\u00e1vislost na rop\u011b a z\u00e1rove\u0148 minimalizuje ekologick\u00fd dopad. Tento \u010dl\u00e1nek se podrobn\u011bji zam\u011b\u0159\u00ed na proces v\u00fdroby biodieselu. Suroviny pro v\u00fdrobu biodieselu Z\u00e1kladn\u00ed surovinou pro v\u00fdrobu biodieselu jsou rostlinn\u00e9 oleje<\/p>\n","protected":false},"author":1,"featured_media":26460,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-60961","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\/60961","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=60961"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/60961\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/26460"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=60961"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=60961"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=60961"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}