Making Biodiesel

You don’t need a science Ph.D. to brew your own motor fuel, although Jeffrey Orrey happens to have one.
The 41-year-old is a geophysicist, a specialty common among oil-industry scientists. But petroleum isn’t a factor in his day job, where he develops satellite and aerial-imaging software.
As a hobby, Orrey turns used vegetable oil into biodiesel in […]

Credit card-sized device converts vegetable oil almost instantly
A tiny chemical reactor that can convert vegetable oil directly into biodiesel could help farmers turn some of their crops into homegrown fuel to operate agricultural equipment instead of relying on costly imported oil.
“This is all about producing energy in such a way that it liberates people,” said […]