{"id":57736,"date":"2023-04-22T02:59:32","date_gmt":"2023-04-22T07:59:32","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-biofuel-from-vegetable-oil\/"},"modified":"2025-01-27T06:09:55","modified_gmt":"2025-01-27T11:09:55","slug":"how-to-make-biofuel-from-vegetable-oil","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/how-to-make-biofuel-from-vegetable-oil\/","title":{"rendered":"Biopaliva z rostlinn\u00fdch olej\u016f: Kompletn\u00ed n\u00e1vod"},"content":{"rendered":"<p>Biopaliva z rostlinn\u00fdch olej\u016f p\u0159edstavuj\u00ed slibnou alternativu k fosiln\u00edm paliv\u016fm, a to zejm\u00e9na d\u00edky jejich obnovitelnosti a potenci\u00e1lu sn\u00ed\u017een\u00ed uhl\u00edkov\u00e9 stopy.  Proces v\u00fdroby biopaliva z rostlinn\u00fdch olej\u016f v\u0161ak vy\u017eaduje specifick\u00e9 postupy a znalosti.  N\u00e1sleduj\u00edc\u00ed text podrobn\u011b popisuje jednotliv\u00e9 kroky tohoto procesu.<\/p>\n<h3>P\u0159\u00edprava suroviny<\/h3>\n<p>Z\u00e1kladem v\u00fdroby biopaliva je kvalitn\u00ed rostlinn\u00fd olej.  Nej\u010dast\u011bji se pou\u017e\u00edvaj\u00ed oleje z \u0159epky olejky, slune\u010dnice, s\u00f3ji, palmy olejn\u00e9 a dal\u0161\u00edch olejnin.  P\u0159ed zpracov\u00e1n\u00edm je d\u016fle\u017eit\u00e9 olej zbavit ne\u010distot a vody. To se prov\u00e1d\u00ed filtrac\u00ed a p\u0159\u00edpadn\u011b odst\u0159ed\u011bn\u00edm. Kvalita suroviny v\u00fdrazn\u011b ovliv\u0148uje kone\u010dnou kvalitu biopaliva.  P\u0159\u00edli\u0161 vysok\u00fd obsah vody m\u016f\u017ee v\u00e9st k probl\u00e9m\u016fm b\u011bhem transesterifikace.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Typ oleje<\/th>\n<th>V\u00fdt\u011b\u017enost biopaliva (%)<\/th>\n<th>Vlastnosti<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0158epkov\u00fd olej<\/td>\n<td>90-95<\/td>\n<td>Vysok\u00e1 kvalita, dobr\u00e1 dostupnost<\/td>\n<\/tr>\n<tr>\n<td>Slune\u010dnicov\u00fd olej<\/td>\n<td>85-90<\/td>\n<td>Dobr\u00e1 kvalita, dostupnost<\/td>\n<\/tr>\n<tr>\n<td>S\u00f3jov\u00fd olej<\/td>\n<td>80-85<\/td>\n<td>Dobr\u00e1 kvalita, dostupnost<\/td>\n<\/tr>\n<tr>\n<td>Palmov\u00fd olej<\/td>\n<td>95-100<\/td>\n<td>Vysok\u00e1 v\u00fdt\u011b\u017enost, kontroverze ohledn\u011b udr\u017eitelnosti<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Transesterifikace<\/h3>\n<p>Nejd\u016fle\u017eit\u011bj\u0161\u00edm krokem v\u00fdroby biopaliva je transesterifikace, chemick\u00e1 reakce, p\u0159i kter\u00e9 se triglyceridy v rostlinn\u00e9m oleji p\u0159em\u011bn\u00ed na methylestery mastn\u00fdch kyselin (FAME), co\u017e je hlavn\u00ed slo\u017eka biodieselu.  Tato reakce prob\u00edh\u00e1 za p\u0159\u00edtomnosti katalyz\u00e1toru, nej\u010dast\u011bji hydroxidu sodn\u00e9ho (NaOH) nebo hydroxidu draseln\u00e9ho (KOH), a methanolu.  Reakce je exotermick\u00e1, tzn. uvol\u0148uje teplo.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Parametr<\/th>\n<th>Optim\u00e1ln\u00ed hodnota<\/th>\n<th>Vliv na reakci<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Teplota<\/td>\n<td>50-60 \u00b0C<\/td>\n<td>P\u0159\u00edli\u0161 n\u00edzk\u00e1 teplota zpomal\u00ed reakci, p\u0159\u00edli\u0161 vysok\u00e1 m\u016f\u017ee v\u00e9st k degradaci produktu<\/td>\n<\/tr>\n<tr>\n<td>Mno\u017estv\u00ed methanolu<\/td>\n<td>6:1 (olej:methanol)<\/td>\n<td>Nedostate\u010dn\u00e9 mno\u017estv\u00ed methanolu zhor\u0161\u00ed v\u00fdt\u011b\u017enost<\/td>\n<\/tr>\n<tr>\n<td>Doba reakce<\/td>\n<td>1-2 hodiny<\/td>\n<td>Del\u0161\u00ed doba reakce m\u016f\u017ee v\u00e9st k ne\u017e\u00e1douc\u00edm reakc\u00edm<\/td>\n<\/tr>\n<tr>\n<td>Mno\u017estv\u00ed katalyz\u00e1toru<\/td>\n<td>1% v\u00e1hy oleje<\/td>\n<td>P\u0159\u00edli\u0161 vysok\u00e9 mno\u017estv\u00ed katalyz\u00e1toru m\u016f\u017ee v\u00e9st k ne\u017e\u00e1douc\u00edm reakc\u00edm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Separace a \u010di\u0161t\u011bn\u00ed<\/h3>\n<p>Po transesterifikaci se sm\u011bs skl\u00e1d\u00e1 z FAME (biodieselu), glycerinu a zbytk\u016f katalyz\u00e1toru.  Je nutn\u00e9 tyto slo\u017eky od sebe odd\u011blit.  To se prov\u00e1d\u00ed decantac\u00ed nebo odst\u0159ed\u011bn\u00edm.  Glycerin se pak m\u016f\u017ee d\u00e1le zpracov\u00e1vat a vyu\u017e\u00edt v jin\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch.  Biodiesel je n\u00e1sledn\u011b promyt vodou, aby se odstranily zbytky glycerinu a katalyz\u00e1toru.  Kvalita \u010di\u0161t\u011bn\u00ed je kritick\u00e1 pro \u017eivotnost motoru a zabr\u00e1n\u011bn\u00ed koroze.<\/p>\n<h3>Su\u0161en\u00ed a filtrace<\/h3>\n<p>Po promyt\u00ed je biodiesel nutn\u00e9 vysu\u0161it, aby se odstranila zb\u00fdvaj\u00edc\u00ed voda.  To se prov\u00e1d\u00ed odpa\u0159ov\u00e1n\u00edm nebo adsorpc\u00ed.  N\u00e1sledn\u011b se biodiesel filtruje, aby se odstranily p\u0159\u00edpadn\u00e9 pevn\u00e9 ne\u010distoty a zaru\u010dila se jeho \u010distota a kvalita.  Spr\u00e1vn\u011b vyroben\u00fd biodiesel by m\u011bl spl\u0148ovat normy EN 14214.<\/p>\n<p>Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee v\u00fdroba biopaliva z rostlinn\u00fdch olej\u016f je komplexn\u00ed proces, kter\u00fd vy\u017eaduje dodr\u017eov\u00e1n\u00ed p\u0159esn\u00fdch postup\u016f a kontrolu kvality v ka\u017ed\u00e9m kroku.  Spr\u00e1vn\u00e1 p\u0159\u00edprava suroviny, optimalizovan\u00e1 transesterifikace, efektivn\u00ed separace a d\u016fkladn\u00e9 \u010di\u0161t\u011bn\u00ed jsou kl\u00ed\u010dov\u00e9 pro z\u00edsk\u00e1n\u00ed kvalitn\u00edho biodieselu, kter\u00fd m\u016f\u017ee slou\u017eit jako obnoviteln\u00e1 a ekologick\u00e1 alternativa k fosiln\u00edm paliv\u016fm.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Biopaliva z rostlinn\u00fdch olej\u016f p\u0159edstavuj\u00ed slibnou alternativu k fosiln\u00edm paliv\u016fm, a to zejm\u00e9na d\u00edky jejich obnovitelnosti a potenci\u00e1lu sn\u00ed\u017een\u00ed uhl\u00edkov\u00e9 stopy. Proces v\u00fdroby biopaliva z rostlinn\u00fdch olej\u016f v\u0161ak vy\u017eaduje specifick\u00e9 postupy a znalosti. N\u00e1sleduj\u00edc\u00ed text podrobn\u011b popisuje jednotliv\u00e9 kroky tohoto procesu. P\u0159\u00edprava suroviny Z\u00e1kladem v\u00fdroby biopaliva je kvalitn\u00ed rostlinn\u00fd olej. Nej\u010dast\u011bji se pou\u017e\u00edvaj\u00ed oleje z<\/p>\n","protected":false},"author":1,"featured_media":26456,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-57736","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\/57736","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=57736"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/57736\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/26456"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=57736"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=57736"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=57736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}