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Description
  • Transesterifikací rostlinných olejů vzniká heterogenní reakční směs. Reakční směs obsahuje zejména methylestery vyšších mastných kyselin a glycerolu. Z této směsi je bionafta získávána samovolnou sedimentací. Sedimentaci je možné urychlit řízeným přídavkem vody. Bylo zjištěno, že malé množství vody přidané do surové reakční směsi významně ovlivňuje rychlost separace. Byly zjištěny významné rozdíly v kvalitě a kvantitě obou fází. Přídavkem vody jsou měněny optické vlastnosti (transmitance a index lomu) heterogenní surové reakční směsi, které mohou být pozorovány spektrofotometricky. Tato metoda je vhodná pro všechny druhy rostlinných olejů včetně použitých fritovacích olejů. (cs)
  • Heterogeneous reaction mixture is formed by transesterification of vegetable oils. The reaction mixture contains methyl esters of higher fatty acids and glycerol mainly. From this mixture, biodiesel is gained by spontaneous sedimentation in the gravitational field. The sedimentation can be considerably accelerated by controlled addition of water. It was found that addition of small amount of water into the crude reaction mixture affected significantly the mixture and substantial change in the speed of the separation took place. Considerable differences in the composition and quality of ester and glycerol phases occurred. Optical properties (transmittance and refractive indices) of heterogeneous reaction mixture are change after addition of water; this change can be observed spectrophotometrically. This method is applicable for all types of vegetable oils including waste frying oils.
  • Heterogeneous reaction mixture is formed by transesterification of vegetable oils. The reaction mixture contains methyl esters of higher fatty acids and glycerol mainly. From this mixture, biodiesel is gained by spontaneous sedimentation in the gravitational field. The sedimentation can be considerably accelerated by controlled addition of water. It was found that addition of small amount of water into the crude reaction mixture affected significantly the mixture and substantial change in the speed of the separation took place. Considerable differences in the composition and quality of ester and glycerol phases occurred. Optical properties (transmittance and refractive indices) of heterogeneous reaction mixture are change after addition of water; this change can be observed spectrophotometrically. This method is applicable for all types of vegetable oils including waste frying oils. (en)
Title
  • Simplification of Separation of Reaction Mixture after Transesterification of Vegetable Oil
  • Usnadnění separace reakční směsi po transesterifikaci rostlinných olejů (cs)
  • Simplification of Separation of Reaction Mixture after Transesterification of Vegetable Oil (en)
skos:prefLabel
  • Simplification of Separation of Reaction Mixture after Transesterification of Vegetable Oil
  • Usnadnění separace reakční směsi po transesterifikaci rostlinných olejů (cs)
  • Simplification of Separation of Reaction Mixture after Transesterification of Vegetable Oil (en)
skos:notation
  • RIV/00216275:25310/08:00006171!RIV09-MSM-25310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM0021627502)
http://linked.open...iv/cisloPeriodika
  • 4
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 394768
http://linked.open...ai/riv/idVysledku
  • RIV/00216275:25310/08:00006171
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Biodiesel; Vegetable Oil; Sedimentation; Water; Refractive Index (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV
  • [6AF1B32458EB]
http://linked.open...i/riv/nazevZdroje
  • European Journal of Lipid Science and Technology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 110
http://linked.open...iv/tvurceVysledku
  • Hájek, Martin
  • Skopal, František
  • Machek, Jaroslav
http://linked.open...n/vavai/riv/zamer
issn
  • 1438-7697
number of pages
http://localhost/t...ganizacniJednotka
  • 25310
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