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One-pot process combining transesterification and selective hydrogenation for biodiesel production from starting material of high degree of unsaturation.

Abstract：

:A one-pot process combining transesterification and selective hydrogenation was established to produce biodiesel from hemp (Cannabis sativa L.) seed oil which is eliminated as a potential feedstock by a specification of iodine value (IV; 120 g I(2)/100g maximum) contained in EN 14214. A series of alkaline earth metal oxides and alkaline earth metal supported copper oxide were prepared and tested as catalysts. SrO supported 10 wt.% CuO showed the superior catalytic activity for transesterification with a biodiesel yield of 96% and hydrogenation with a reduced iodine value of 113 and also exhibited a promising selectivity for eliminating methyl linolenate and increasing methyl oleate without rising methyl stearate in the selective hydrogenation. The fuel properties of the selective hydrogenated methyl esters are within biodiesel specifications. Furthermore, cetane numbers and iodine values were well correlated with the compositions of the hydrogenated methyl esters according to degrees of unsaturation.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Yang R,Su M,Li M,Zhang J,Hao X,Zhang H

doi

10.1016/j.biortech.2010.02.095

subject

Has Abstract

pub_date

2010-08-01 00:00:00

pages

5903-9

issue

15

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(10)00406-2

journal_volume

101

pub_type

杂志文章

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