{"id":57221,"date":"2023-04-25T14:51:35","date_gmt":"2023-04-25T19:51:35","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/what-is-needed-to-make-biodiesel\/"},"modified":"2025-01-27T06:17:14","modified_gmt":"2025-01-27T11:17:14","slug":"what-is-needed-to-make-biodiesel","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/what-is-needed-to-make-biodiesel\/","title":{"rendered":"Biodiesel: Suroviny, proces a technologie v\u00fdroby"},"content":{"rendered":"<p>Biodiesel je obnoviteln\u00fd zdroj energie, jeho\u017e v\u00fdroba se st\u00e1v\u00e1 st\u00e1le d\u016fle\u017eit\u011bj\u0161\u00ed v kontextu sni\u017eov\u00e1n\u00ed emis\u00ed sklen\u00edkov\u00fdch plyn\u016f a z\u00e1vislosti na fosiln\u00edch palivech.  Jeho produkce je relativn\u011b jednoduch\u00e1, av\u0161ak vy\u017eaduje dodr\u017een\u00ed specifick\u00fdch proces\u016f a pou\u017eit\u00ed vhodn\u00fdch surovin.  Tento \u010dl\u00e1nek se podrobn\u011bji zab\u00fdv\u00e1 procesem v\u00fdroby biodieselu a nezbytn\u00fdmi ingrediencemi.<\/p>\n<h3>Suroviny pro v\u00fdrobu biodieselu<\/h3>\n<p>Z\u00e1kladn\u00ed surovinou pro v\u00fdrobu biodieselu jsou oleje a tuky rostlinn\u00e9ho nebo \u017eivo\u010di\u0161n\u00e9ho p\u016fvodu.  Mezi nej\u010dast\u011bji pou\u017e\u00edvan\u00e9 pat\u0159\u00ed \u0159epkov\u00fd olej, s\u00f3jov\u00fd olej, palmov\u00fd olej a pou\u017eit\u00fd kuchy\u0148sk\u00fd olej.  Kvalita vstupn\u00edch surovin v\u00fdrazn\u011b ovliv\u0148uje kvalitu v\u00fdsledn\u00e9ho biodieselu.  Je d\u016fle\u017eit\u00e9, aby suroviny byly \u010dist\u00e9 a bez ne\u010distot, kter\u00e9 by mohly proces v\u00fdroby negativn\u011b ovlivnit.  Obsah voln\u00fdch mastn\u00fdch kyselin (VMK) je kl\u00ed\u010dov\u00fdm parametrem, kter\u00fd ovliv\u0148uje efektivitu transesterifikace.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Surovina<\/th>\n<th>V\u00fdhody<\/th>\n<th>Nev\u00fdhody<\/th>\n<th>Typick\u00fd obsah VMK (%)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0158epkov\u00fd olej<\/td>\n<td>Vysok\u00e1 dostupnost, dobr\u00e1 kvalita<\/td>\n<td>Sez\u00f3nn\u00ed dostupnost, cena<\/td>\n<td>0,5 &#8211; 1,5<\/td>\n<\/tr>\n<tr>\n<td>S\u00f3jov\u00fd olej<\/td>\n<td>Vysok\u00fd v\u00fdt\u011b\u017eek biodieselu<\/td>\n<td>Geneticky modifikovan\u00e9 odr\u016fdy, p\u011bstov\u00e1n\u00ed<\/td>\n<td>0,5 &#8211; 2,0<\/td>\n<\/tr>\n<tr>\n<td>Palmov\u00fd olej<\/td>\n<td>Vysok\u00fd v\u00fdt\u011b\u017eek biodieselu<\/td>\n<td>Environment\u00e1ln\u00ed dopady p\u011bstov\u00e1n\u00ed<\/td>\n<td>0,5 &#8211; 1,0<\/td>\n<\/tr>\n<tr>\n<td>Pou\u017eit\u00fd kuchy\u0148sk\u00fd olej<\/td>\n<td>N\u00edzk\u00e1 cena, recyklace odpadu<\/td>\n<td>Variabiln\u00ed kvalita, vysok\u00fd obsah VMK<\/td>\n<td>1,0 &#8211; 5,0+<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Alkohol a katalyz\u00e1tor<\/h3>\n<p>Pro transesterifikaci, chemickou reakci, kter\u00e1 p\u0159em\u011b\u0148uje oleje a tuky na biodiesel, je nezbytn\u00fd alkohol, nej\u010dast\u011bji methanol nebo ethanol.  Methanol je efektivn\u011bj\u0161\u00ed, ale tak\u00e9 toxick\u00fd. Ethanol je m\u00e9n\u011b toxick\u00fd, ale reakce s n\u00edm prob\u00edh\u00e1 pomaleji a vy\u017eaduje specifick\u00e9 podm\u00ednky.<\/p>\n<p>Katalyz\u00e1tor urychluje pr\u016fb\u011bh transesterifikace.  Nej\u010dast\u011bji se pou\u017e\u00edv\u00e1 hydroxid sodn\u00fd (NaOH) nebo hydroxid draseln\u00fd (KOH).  Koncentrace katalyz\u00e1toru je kritick\u00e1, p\u0159\u00edli\u0161 vysok\u00e1 koncentrace m\u016f\u017ee v\u00e9st ke vzniku m\u00fddla, p\u0159\u00edli\u0161 n\u00edzk\u00e1 k ne\u00fapln\u00e9 reakci.<\/p>\n<h3>Proces transesterifikace<\/h3>\n<p>Transesterifikace je exotermick\u00e1 reakce, p\u0159i kter\u00e9 se triglyceridy v oleji nebo tuku reaguj\u00ed s alkoholem za p\u0159\u00edtomnosti katalyz\u00e1toru.  V\u00fdsledkem jsou mastn\u00e9 kysel\u00e9 methylestery (biodiesel) a glycerin.  Proces zahrnuje n\u011bkolik krok\u016f, v\u010detn\u011b m\u00edch\u00e1n\u00ed surovin, reakce, separace glycerin a kone\u010dn\u00e9 \u010di\u0161t\u011bn\u00ed biodieselu.  Teplota a \u010das reakce jsou kl\u00ed\u010dov\u00e9 parametry ovliv\u0148uj\u00edc\u00ed efektivitu procesu.  N\u011bkdy se pro zlep\u0161en\u00ed \u00fa\u010dinnosti procesu pou\u017e\u00edvaj\u00ed ultrazvukov\u00e9 metody, kter\u00e9 podporuj\u00ed lep\u0161\u00ed prom\u00edsen\u00ed reak\u010dn\u00edch slo\u017eek.<\/p>\n<h3>\u010ci\u0161t\u011bn\u00ed biodieselu<\/h3>\n<p>Po transesterifikaci je nutn\u00e9 biodiesel o\u010distit od glycerinu a dal\u0161\u00edch ne\u010distot.  To se prov\u00e1d\u00ed pomoc\u00ed sedimentace, filtrace, nebo centrifugac\u00ed.  Kvalita biodieselu je posuzov\u00e1na podle r\u016fzn\u00fdch parametr\u016f, jako je viskozita, obsah vody, a obsah voln\u00fdch mastn\u00fdch kyselin.  Dodr\u017een\u00ed normy je kl\u00ed\u010dov\u00e9 pro jeho pou\u017eit\u00ed v motorech.<\/p>\n<p>Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee v\u00fdroba biodieselu je relativn\u011b jednoduch\u00fd proces, kter\u00fd vy\u017eaduje dodr\u017een\u00ed specifick\u00fdch postup\u016f a pou\u017eit\u00ed vhodn\u00fdch surovin.  Kvalita vstupn\u00edch materi\u00e1l\u016f a pe\u010dliv\u00e9 \u0159\u00edzen\u00ed reak\u010dn\u00edch podm\u00ednek jsou kl\u00ed\u010dov\u00e9 pro dosa\u017een\u00ed kvalitn\u00edho a \u00fa\u010dinn\u00e9ho biodieselu.  S ohledem na rostouc\u00ed popt\u00e1vku po obnoviteln\u00fdch zdroj\u00edch energie se o\u010dek\u00e1v\u00e1, \u017ee v\u00fdroba biodieselu bude i nad\u00e1le nab\u00fdvat na d\u016fle\u017eitosti.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Biodiesel je obnoviteln\u00fd zdroj energie, jeho\u017e v\u00fdroba se st\u00e1v\u00e1 st\u00e1le d\u016fle\u017eit\u011bj\u0161\u00ed v kontextu sni\u017eov\u00e1n\u00ed emis\u00ed sklen\u00edkov\u00fdch plyn\u016f a z\u00e1vislosti na fosiln\u00edch palivech. Jeho produkce je relativn\u011b jednoduch\u00e1, av\u0161ak vy\u017eaduje dodr\u017een\u00ed specifick\u00fdch proces\u016f a pou\u017eit\u00ed vhodn\u00fdch surovin. Tento \u010dl\u00e1nek se podrobn\u011bji zab\u00fdv\u00e1 procesem v\u00fdroby biodieselu a nezbytn\u00fdmi ingrediencemi. Suroviny pro v\u00fdrobu biodieselu Z\u00e1kladn\u00ed surovinou pro v\u00fdrobu<\/p>\n","protected":false},"author":1,"featured_media":26457,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-57221","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\/57221","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=57221"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/57221\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/26457"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=57221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=57221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=57221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}