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A Portuguese oil company plans to announce it is building a 6,500-barrel-a-day plant to make diesel fuel from vegetable oils using a method akin to refining oil.
The New York Times
The story "New method for making diesel fuel uses vegetable oils" published November 28, 2007 at 8:49 AM is no longer available on CNET News.
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- Not a new method
- by Brad Hansen November 30, 2007 10:28 AM PST
- This method has been around since the 1930s, at least. Do a web search on "transesterfication".<br /><br />Galp Energia may have a new process that makes transesterfication more economical or faster, but the method is old, old, old.<br /><br />And the method doesn't "add hydrogen to oils" -- that process is called hydrogenation and produces solid fats, like margarine. Imagine trying to pump Crisco through a diesal fuel line. You'd have a lot of unhappy truckers!<br /><br />Transesterfication substitutes a hydrogen atom for a long chain ester, thus producing a more liquid, easier flowing product than the source vegetable oil -- exactly the opposite result from hydrogenation.
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