{"id":57801,"date":"2023-04-22T02:56:54","date_gmt":"2023-04-22T07:56:54","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-produce-biodiesel-from-vegetable-oil\/"},"modified":"2025-01-27T06:11:48","modified_gmt":"2025-01-27T11:11:48","slug":"how-to-produce-biodiesel-from-vegetable-oil","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/how-to-produce-biodiesel-from-vegetable-oil\/","title":{"rendered":"Biodiesel z rostlinn\u00fdch olej\u016f: Kompletn\u00ed pr\u016fvodce"},"content":{"rendered":"<p>Biodiesel z rostlinn\u00fdch olej\u016f \u2013 detailn\u00ed n\u00e1vod<\/p>\n<p>Biodiesel se st\u00e1v\u00e1 st\u00e1le popul\u00e1rn\u011bj\u0161\u00ed alternativou k fosiln\u00edm paliv\u016fm.  Jeho v\u00fdroba z rostlinn\u00fdch olej\u016f je relativn\u011b jednoduch\u00e1 a \u0161etrn\u00e1 k \u017eivotn\u00edmu prost\u0159ed\u00ed, i kdy\u017e vy\u017eaduje dodr\u017eov\u00e1n\u00ed specifick\u00fdch postup\u016f. Tento \u010dl\u00e1nek podrobn\u011b popisuje proces v\u00fdroby biodieselu z pou\u017eit\u00fdch kuchy\u0148sk\u00fdch olej\u016f a tuk\u016f.<\/p>\n<h3>Z\u00edsk\u00e1n\u00ed a p\u0159\u00edprava surovin<\/h3>\n<p>Nejd\u0159\u00edve je nutn\u00e9 zajistit dostate\u010dn\u00e9 mno\u017estv\u00ed rostlinn\u00e9ho oleje.  Ide\u00e1ln\u00ed jsou pou\u017eit\u00e9 kuchy\u0148sk\u00e9 oleje, kter\u00e9 by se jinak vyhodily.  Je v\u0161ak d\u016fle\u017eit\u00e9, aby olej nebyl kontaminov\u00e1n vodou, zbytky potravin nebo jin\u00fdmi ne\u010distotami.  P\u0159ed zpracov\u00e1n\u00edm je proto nutn\u00e9 olej d\u016fkladn\u011b p\u0159efiltrovat p\u0159es n\u011bkolik vrstev filtra\u010dn\u00edho pap\u00edru nebo jemn\u00e9ho s\u00edta.  Odstran\u011bn\u00ed ne\u010distot je kl\u00ed\u010dov\u00e9 pro kvalitu fin\u00e1ln\u00edho produktu a pro prevenci po\u0161kozen\u00ed za\u0159\u00edzen\u00ed.  V z\u00e1vislosti na zdroji oleje je mo\u017en\u00e9 pou\u017e\u00edt i \u010derstv\u00fd rostlinn\u00fd olej, av\u0161ak pou\u017eit\u00e9 oleje jsou ekonomicky v\u00fdhodn\u011bj\u0161\u00ed.<\/p>\n<h3>Proces transesterifikace<\/h3>\n<p>Toto je nejd\u016fle\u017eit\u011bj\u0161\u00ed etapa v\u00fdroby biodieselu.  Jedn\u00e1 se o chemickou reakci, p\u0159i kter\u00e9 se triglyceridy v rostlinn\u00e9m oleji p\u0159em\u011bn\u00ed na methylestery mastn\u00fdch kyselin (biodiesel) a glycerin.  K t\u00e9to reakci je pot\u0159eba alkohol (nej\u010dast\u011bji methanol) a katalyz\u00e1tor (obvykle hydroxid sodn\u00fd nebo draseln\u00fd).  Proces prob\u00edh\u00e1 za m\u00edch\u00e1n\u00ed p\u0159i teplot\u011b kolem 50-60 \u00b0C.  D\u016fle\u017eit\u00e9 je dodr\u017eovat spr\u00e1vn\u00e9 pom\u011bry mezi olejem, alkoholem a katalyz\u00e1torem, kter\u00e9 se li\u0161\u00ed v z\u00e1vislosti na pou\u017eit\u00e9m oleji a katalyz\u00e1toru.  <\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Slo\u017eka<\/th>\n<th>Mno\u017estv\u00ed (objemov\u00e9 %)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Rostlinn\u00fd olej<\/td>\n<td>100<\/td>\n<\/tr>\n<tr>\n<td>Methanol<\/td>\n<td>6-10<\/td>\n<\/tr>\n<tr>\n<td>Hydroxid sodn\u00fd (NaOH) rozpu\u0161t\u011bn\u00fd v methanolu<\/td>\n<td>0.5-1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Doba reakce se pohybuje od n\u011bkolika hodin do jednoho dne.  Po dokon\u010den\u00ed reakce je nutn\u00e9 sm\u011bs odd\u011blit do dvou vrstev:  biodieselu a glycerinu.  Glycerin, kter\u00fd je cenn\u00fdm vedlej\u0161\u00edm produktem, se d\u00e1 d\u00e1le zpracovat a vyu\u017e\u00edt v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch.<\/p>\n<h3>\u010ci\u0161t\u011bn\u00ed biodieselu<\/h3>\n<p>Po odd\u011blen\u00ed od glycerinu je biodiesel je\u0161t\u011b nutn\u00e9 o\u010distit od zbytk\u016f methanolu a glycerinu.  To se prov\u00e1d\u00ed promyt\u00edm vodou.  Po\u010det promyt\u00ed z\u00e1vis\u00ed na po\u017eadovan\u00e9 kvalit\u011b biodieselu.  Pot\u00e9 je biodiesel nutn\u00e9 odvodnit.  To se d\u00e1 dos\u00e1hnout usazen\u00edm nebo centrifugac\u00ed.  K dosa\u017een\u00ed po\u017eadovan\u00e9 \u010distoty je mo\u017en\u00e9 vyu\u017e\u00edt i filtraci.<\/p>\n<h3>Kontrola kvality<\/h3>\n<p>Kvalita vyroben\u00e9ho biodieselu se ov\u011b\u0159uje m\u011b\u0159en\u00edm jeho parametr\u016f, jako je nap\u0159\u00edklad kyselost, viskozita a obsah vody.  Tyto parametry mus\u00ed spl\u0148ovat normy pro pou\u017eit\u00ed v dieselov\u00fdch motorech.  Nespln\u011bn\u00ed t\u011bchto parametr\u016f m\u016f\u017ee v\u00e9st k po\u0161kozen\u00ed motoru.<\/p>\n<h3>Z\u00e1v\u011bre\u010dn\u00e1 \u00faprava a skladov\u00e1n\u00ed<\/h3>\n<p>P\u0159ed pou\u017eit\u00edm je nutn\u00e9 biodiesel je\u0161t\u011b jednou p\u0159efiltrovat, aby se odstranily p\u0159\u00edpadn\u00e9 zbytky ne\u010distot.  Biodiesel je t\u0159eba skladovat v uzav\u0159en\u00fdch n\u00e1dob\u00e1ch, chr\u00e1n\u011bn\u00fdch p\u0159ed vlhkost\u00ed a slune\u010dn\u00edm z\u00e1\u0159en\u00edm.  Spr\u00e1vn\u00e9 skladov\u00e1n\u00ed prodlu\u017euje jeho trvanlivost a zachov\u00e1v\u00e1 jeho kvalitu.<\/p>\n<p>Biodiesel z rostlinn\u00fdch olej\u016f p\u0159edstavuje udr\u017eitelnou alternativu k fosiln\u00edm paliv\u016fm.  Dodr\u017eov\u00e1n\u00ed spr\u00e1vn\u00e9ho postupu a pe\u010dliv\u00e9 dodr\u017eov\u00e1n\u00ed bezpe\u010dnostn\u00edch opat\u0159en\u00ed  je kl\u00ed\u010dov\u00e9 pro v\u00fdrobu kvalitn\u00edho biodieselu a minimalizaci rizik spojen\u00fdch s jeho v\u00fdrobou a pou\u017e\u00edv\u00e1n\u00edm.  V\u00fdroba biodieselu v dom\u00e1c\u00edch podm\u00ednk\u00e1ch je relativn\u011b snadn\u00e1, ale vy\u017eaduje pe\u010dlivost a p\u0159esnost.  Dodr\u017eov\u00e1n\u00ed popsan\u00fdch krok\u016f by m\u011blo zajistit \u00fasp\u011b\u0161nou v\u00fdrobu.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Biodiesel z rostlinn\u00fdch olej\u016f \u2013 detailn\u00ed n\u00e1vod Biodiesel se st\u00e1v\u00e1 st\u00e1le popul\u00e1rn\u011bj\u0161\u00ed alternativou k fosiln\u00edm paliv\u016fm. Jeho v\u00fdroba z rostlinn\u00fdch olej\u016f je relativn\u011b jednoduch\u00e1 a \u0161etrn\u00e1 k \u017eivotn\u00edmu prost\u0159ed\u00ed, i kdy\u017e vy\u017eaduje dodr\u017eov\u00e1n\u00ed specifick\u00fdch postup\u016f. Tento \u010dl\u00e1nek podrobn\u011b popisuje proces v\u00fdroby biodieselu z pou\u017eit\u00fdch kuchy\u0148sk\u00fdch olej\u016f a tuk\u016f. Z\u00edsk\u00e1n\u00ed a p\u0159\u00edprava surovin Nejd\u0159\u00edve je nutn\u00e9<\/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-57801","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\/57801","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=57801"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/57801\/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=57801"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=57801"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=57801"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}