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Here are some stories from 2009 that are in review for 2010 follow up
late October, Boeing announced that they would be phasing in biofuel blends within the next three to five years. At the time, there wasn't much information about what type of biofuel they'd be using or when they'd be conducting a large scale test. In a press release yesterday from UOP, it was revealed that the company would be participating in a test flight scheduled for December 3 in partnership with Air New Zealand, Boeing and Rolls Royce.
The 747-400 jet will take off from Auckland and will run on a 50/50 blend of Jet A-1 fuel and a synthetic paraffinic kerosene derived from jatropha that was developed by UOP. Rolls Royce conducted engine tests with the blended fuel and found that it met all specifications for jet fuel.
Jatropha is a plant that produces seeds that contain an inedible oil that can be extracted to make fuel. The plant oil for this test flight was sourced from non-arable lands in India, Malawi, Mozambique and Tanzania.
More flight details are supposed to be released closer to December 3, but it's interesting that Boeing previously indicated that they'd be using 30 percent biofuel blends, but this test will be performed with a 50 percent blend. It's encouraging that they were able to find a larger percentage blend that performed just as well.
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Toxic chemicals ethylene glycol and propylene glycol have been the preferred engine coolants for decades. Glycerol (glycerin) was once used as a coolant, but it was expensive and it's a weaker freezing point depression ruled it out.
This may all change soon. Glycerin is a natural byproduct of biodiesel, so while biodiesel is starting to be produced in large quantities, so is glycerin. This new abundance of glycerin has made it cost competitive with its more toxic counterparts.
SAE International did an extensive evaluation of glycerin's performance in heat transfer, corrosion protection, freeze point, thermal stability and toxicity. They concluded that glycerin should be reconsidered as a less toxic base for antifreeze.
I like the idea of reducing waste by coming up with uses for a byproduct. Eliminating or reducing waste in manufacturing will need to be a star player in our move towards a cleaner planet or we'll never get there. Plus a reduction in a product's toxicity is always a step in the right direction.
via GoodCleanTech