Combined effect of water and KOH on rapeseed oil methanolysis
ČlánekOtevřený přístuppeer-reviewedpostprintDatum publikování
2010
Vedoucí práce
Oponent
Název časopisu
Název svazku
Vydavatel
Elsevier
Abstrakt
This paper deals with the effect of water and catalyst (KOH) amount on the quantity and quality of transesterification products of rapeseed oil by methanol, the methyl ester phase (i.e. yield, conversion), and the side-product, the glycerol phase (i.e. density, viscosity, the mass fraction of glycerol, esters, soaps). The dependencies were described by statistical models. The transesterification was carried out at constant reaction conditions (90 min reaction time, 400 rpm, 60 °C). Twelve experiments with the independent factors, amount of potassium hydroxide (0.65–0.9 mg per gram of oil) and total amount of water (0.24–1.42 mg per gram of oil) naturally present in the reaction components or formed by the neutralization reaction of free fatty acids and of added water. The data were analyzed by linear regression with respect to regression triplet (complex critical analysis of the model, data and regression method). The analysis resulted in a set of linear and/or quadratic models consisting of statistically proven terms at a statistical significance level of 0.05 and demonstrated that ester in the glycerol phase increases with increasing amount of soaps.
Rozsah stran
p. 3121-3125
ISSN
0960-8524
Trvalý odkaz na tento záznam
Projekt
Zdrojový dokument
Bioresource Technology. 2010, vol. 101, issue 9
Vydavatelská verze
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V24-4Y34M8M-3&_user=640852&_coverDate=05%2F31%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000032310&_version=1&_urlVersion=0&_userid=640852&md5=f1bd1b1a6565aa8c48febe6404e93795&searchtype=a
Přístup k e-verzi
open access
Název akce
ISBN
Studijní obor
Studijní program
Signatura tištěné verze
Umístění tištěné verze
Přístup k tištěné verzi
Klíčová slova
Biodiesel, statistical analysis, Water, KOH, saponification