New engine method for biodiesel cetane number testing

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A Green Method for Determination of Acid Number of Biodiesel

Neste trabalho é proposto um método simples e verde para a determinação do índice de acidez do biodiesel. A amostra é dissolvida em solução 1:1 v/v etanol:água, evitando a mistura tolueno:isopropanol:água (1:0,95:0,5 v/v/v) usada nas normas atuais. A titulação é realizada com uma solução aquosa de NaOH 0,02 mol L. O método foi comparado com o da ABNT NBR 14448, que é similar ao do ASTM D 664 e ...

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ژورنال

عنوان ژورنال: Thermal Science

سال: 2008

ISSN: 0354-9836,2334-7163

DOI: 10.2298/tsci0801125p