{"id":59042,"date":"2023-04-22T00:23:37","date_gmt":"2023-04-22T05:23:37","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-produce-biodiesel-at-home\/"},"modified":"2025-01-27T06:11:47","modified_gmt":"2025-01-27T11:11:47","slug":"how-to-produce-biodiesel-at-home","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/how-to-produce-biodiesel-at-home\/","title":{"rendered":"Dom\u00e1c\u00ed v\u00fdroba biodiesely: Kompletn\u00ed pr\u016fvodce"},"content":{"rendered":"

Dom\u00e1c\u00ed v\u00fdroba bionafty je l\u00e1kav\u00e1 pro svou potenci\u00e1ln\u00ed \u00fasporu n\u00e1klad\u016f a ekologick\u00fd aspekt. Nicm\u00e9n\u011b je d\u016fle\u017eit\u00e9 si uv\u011bdomit, \u017ee tento proces vy\u017eaduje opatrnost a dodr\u017eov\u00e1n\u00ed bezpe\u010dnostn\u00edch p\u0159edpis\u016f. N\u00e1sleduj\u00edc\u00ed \u010dl\u00e1nek podrobn\u011b popisuje postup v\u00fdroby bionafty doma, ale nen\u00ed n\u00e1vodem k pou\u017eit\u00ed a nenese zodpov\u011bdnost za p\u0159\u00edpadn\u00e9 \u0161kody.<\/p>\n

Z\u00edsk\u00e1n\u00ed surovin<\/h3>\n

Nejd\u016fle\u017eit\u011bj\u0161\u00ed surovinou pro v\u00fdrobu bionafty je pou\u017eit\u00fd rostlinn\u00fd olej. Ide\u00e1ln\u00ed jsou oleje z fritov\u00e1n\u00ed, kter\u00e9 jsou ji\u017e zbaveny v\u011bt\u0161iny pevn\u00fdch \u010d\u00e1stic. M\u016f\u017eete pou\u017e\u00edt i jin\u00e9 oleje, ale je d\u016fle\u017eit\u00e9 je nejprve \u0159\u00e1dn\u011b p\u0159efiltrovat. Dal\u0161\u00ed nezbytnou surovinou je methanol (methylalkohol), kter\u00fd je siln\u011b jedovat\u00fd a je nutn\u00e9 s n\u00edm zach\u00e1zet s maxim\u00e1ln\u00ed opatrnost\u00ed. Katalyz\u00e1tor, obvykle hydroxid sodn\u00fd (NaOH), urychluje proces transesterifikace. V\u0161echny suroviny je nutn\u00e9 zakoupit v chemick\u00fdch pot\u0159eb\u00e1ch a dodr\u017eovat p\u0159edepsan\u00e9 bezpe\u010dnostn\u00ed postupy.<\/p>\n

P\u0159\u00edprava oleje<\/h3>\n

P\u0159ed samotnou v\u00fdrobou je d\u016fle\u017eit\u00e9 olej \u0159\u00e1dn\u011b p\u0159ipravit. Zbytky potravin a pevn\u00e9 \u010d\u00e1stice je nutn\u00e9 odstranit filtrac\u00ed p\u0159es n\u011bkolik vrstev filtra\u010dn\u00edho pap\u00edru nebo jemn\u00e9ho s\u00edta. Voda v oleji sni\u017euje \u00fa\u010dinnost procesu, proto je d\u016fle\u017eit\u00e9 olej p\u0159ed pou\u017eit\u00edm zbavit i ve\u0161ker\u00e9 vlhkosti. To se d\u00e1 doc\u00edlit pe\u010dliv\u00fdm oh\u0159\u00e1t\u00edm na n\u00edzkou teplotu (cca 60\u00b0C) a n\u00e1sledn\u00fdm odst\u00e1n\u00edm.<\/p>\n

Proces transesterifikace<\/h3>\n

Transesterifikace je chemick\u00e1 reakce, p\u0159i kter\u00e9 se triglyceridy v rostlinn\u00e9m oleji rozkl\u00e1daj\u00ed na methylestery mastn\u00fdch kyselin (bionafta) a glycerin. Tento proces se prov\u00e1d\u00ed sm\u00edch\u00e1n\u00edm p\u0159ipraven\u00e9ho oleje, methanolu a hydroxidu sodn\u00e9ho v p\u0159esn\u011b stanoven\u00e9m pom\u011bru. Pom\u011br surovin je z\u00e1visl\u00fd na typu oleje a pou\u017e\u00edvan\u00e9ho katalyz\u00e1toru.<\/p>\n\n\n\n\n\n\n\n
Surovina<\/th>\nMno\u017estv\u00ed (p\u0159ibli\u017en\u00e9)<\/th>\nPozn\u00e1mka<\/th>\n<\/tr>\n<\/thead>\n
Pou\u017eit\u00fd olej<\/td>\n1 litr<\/td>\nP\u0159edfiltrovan\u00fd a zbaven\u00fd vlhkosti<\/td>\n<\/tr>\n
Methanol<\/td>\n0,2 litru<\/td>\nSiln\u011b jedovat\u00fd! Manipulovat s ochrann\u00fdmi pom\u016fckami<\/td>\n<\/tr>\n
Hydroxid sodn\u00fd (NaOH)<\/td>\n15 g<\/td>\nP\u0159esn\u00e9 mno\u017estv\u00ed z\u00e1vis\u00ed na typu oleje a reak\u010dn\u00ed teploty<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Reakce je exotermn\u00ed, tzn. uvol\u0148uje teplo. Je d\u016fle\u017eit\u00e9 reak\u010dn\u00ed sm\u011bs udr\u017eovat na optim\u00e1ln\u00ed teplot\u011b, kter\u00e1 se pohybuje obvykle mezi 50-60\u00b0C. Reakce trv\u00e1 n\u011bkolik hodin a je doprov\u00e1zena tvorbou glycerinu, kter\u00fd se odd\u011bl\u00ed od bionafty.<\/p>\n

\u010ci\u0161t\u011bn\u00ed a separace<\/h3>\n

Po dokon\u010den\u00ed reakce je nutn\u00e9 bionaftu odd\u011blit od glycerinu. To se d\u00e1 prov\u00e9st decantac\u00ed nebo centrifugac\u00ed. Glycerin se usad\u00ed na dn\u011b n\u00e1doby. Z\u00edskan\u00e1 bionafta by m\u011bla b\u00fdt d\u00e1le o\u010di\u0161t\u011bna od zbyl\u00fdch ne\u010distot. M\u016f\u017ee se prov\u00e9st dal\u0161\u00ed filtrace p\u0159es aktivn\u00ed uhl\u00ed.<\/p>\n

Kontrola kvality<\/h3>\n

Kvalita vyroben\u00e9 bionafty by m\u011bla b\u00fdt zkontrolov\u00e1na. Je d\u016fle\u017eit\u00e9 zkontrolovat viskozitu, kyselost a obsah vody. Existuj\u00ed speci\u00e1ln\u00ed sady pro testov\u00e1n\u00ed kvality bionafty, kter\u00e9 jsou dostupn\u00e9 v odborn\u00fdch prodejn\u00e1ch.<\/p>\n

Bezpe\u010dnostn\u00ed opat\u0159en\u00ed<\/h3>\n

V\u00fdroba bionafty doma je spojena s riziky. Methanol je vysoce toxick\u00fd a hydroxid sodn\u00fd je \u017e\u00edrav\u00fd. Je nezbytn\u00e9 pou\u017e\u00edvat ochrann\u00e9 pom\u016fcky, jako jsou rukavice, br\u00fdle a respir\u00e1tor. Pr\u00e1ce by se m\u011bla prov\u00e1d\u011bt v dob\u0159e v\u011btran\u00e9m prostoru, daleko od zdroj\u016f ohn\u011b a tepla.<\/p>\n

Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee v\u00fdroba bionafty doma je mo\u017en\u00e1, ale vy\u017eaduje pe\u010dliv\u00e9 dodr\u017eov\u00e1n\u00ed postupu a bezpe\u010dnostn\u00edch p\u0159edpis\u016f. Nespr\u00e1vn\u00e1 manipulace se surovinami m\u016f\u017ee v\u00e9st k v\u00e1\u017en\u00fdm zdravotn\u00edm probl\u00e9m\u016fm nebo po\u0161kozen\u00ed majetku. Je d\u016fle\u017eit\u00e9 si uv\u011bdomit, \u017ee tato informace slou\u017e\u00ed pouze k obecn\u00e9mu pou\u010den\u00ed a nenahrazuje odborn\u00e9 znalosti v oblasti chemie a bezpe\u010dnosti pr\u00e1ce.<\/p>\n","protected":false},"excerpt":{"rendered":"

Dom\u00e1c\u00ed v\u00fdroba bionafty je l\u00e1kav\u00e1 pro svou potenci\u00e1ln\u00ed \u00fasporu n\u00e1klad\u016f a ekologick\u00fd aspekt. Nicm\u00e9n\u011b je d\u016fle\u017eit\u00e9 si uv\u011bdomit, \u017ee tento proces vy\u017eaduje opatrnost a dodr\u017eov\u00e1n\u00ed bezpe\u010dnostn\u00edch p\u0159edpis\u016f. N\u00e1sleduj\u00edc\u00ed \u010dl\u00e1nek podrobn\u011b popisuje postup v\u00fdroby bionafty doma, ale nen\u00ed n\u00e1vodem k pou\u017eit\u00ed a nenese zodpov\u011bdnost za p\u0159\u00edpadn\u00e9 \u0161kody. Z\u00edsk\u00e1n\u00ed surovin Nejd\u016fle\u017eit\u011bj\u0161\u00ed surovinou pro v\u00fdrobu bionafty je pou\u017eit\u00fd<\/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-59042","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\/59042","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=59042"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/59042\/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=59042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=59042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=59042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}