Production of BHD (Bio Hydrofined Diesel) with Improved Cold Flow ...
Production of BHD (Bio Hydrofined Diesel) with Improved Cold Flow ...
Production of BHD (Bio Hydrofined Diesel) with Improved Cold Flow ...
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100<br />
Component Ratio ,%<br />
80<br />
60<br />
40<br />
20<br />
C18<br />
C16<br />
C18<br />
C17<br />
C16<br />
0<br />
Alkyl Chain<br />
<strong>of</strong> Palm Oil<br />
Hydrogenated<br />
Palm Oil (280℃)<br />
C15<br />
Hydrogenated<br />
Palm Oil (320℃)<br />
Fig. 1<br />
Carbon Number <strong>of</strong> Hydrogenated Palm Oil (<strong>BHD</strong>)<br />
This is thought to be caused by the progression <strong>of</strong> decarbonation in the hydrodeoxygenation<br />
reaction. That is, in the decarbonation reaction, oxygen is eliminated in the form <strong>of</strong> CO 2 , and thus the<br />
carbon number <strong>of</strong> the hydrogenated oil decreases by one, and straight chain hydrocarbons <strong>of</strong> C15 and<br />
C17 are formed (Fig. 2). The proportion <strong>of</strong> C15 and C17 increases as the reaction temperature rises,<br />
that is, decarbonation selectivity increases as the reaction temperature rises in the hydrogenation <strong>of</strong><br />
palm oil. Looking at the effects <strong>of</strong> pressure, we found that decarbonation selectivity increases as<br />
pressure becomes lower (Fig. 3).<br />
Vegetable Oil<br />
Palm Oil:<br />
R=C15, C17<br />
RCOOCH 2<br />
RCOOCH<br />
RCOOCH 2<br />
Fatty Acid<br />
Glycerin<br />
+12H 2<br />
Dehydration<br />
+3H 2<br />
Decarbonation<br />
3 R-CH 3 6H 2 O 3 R-H 3 CO 2<br />
CH 3 -CH 2 -CH 3<br />
CH 3 -CH 2 -CH 3<br />
Fig. 2<br />
Scheme <strong>of</strong> Hydrodeoxygenation Reaction
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