I'm actually quite excited about what I read today:
Algae converted to crude oil in less than an hour, energy department says
The day when planes, trucks and cars are commonly revved up on pond scum may be on the near horizon thanks to a technological advance that continuously turns a stream of concentrated algae into bio-crude oil. From green goo to crude takes less than an hour.
The goo contains about 10 percent to 20 percent algae by weight. The rest is water. This mixture is piped into a high-tech pressure cooker where temperatures hover around 660 degrees Fahrenheit and pressures of 3,000 pounds per square inch in order to keep the mixture in a liquid phase.
An hour after being poured into the cooker, gravity separates the crude oil from the water as it flows out the other end. "We can clean up that bio-crude and make it into liquid hydrocarbons that could well serve to displace the gas, diesel, and jet (fuel) that we make from petroleum now," he added.
What's more, a further water-processing step recovers methane — essentially natural gas — from the leftover plant material. The remaining nitrogen-rich water and recovered phosphorous can be recycled to grow more algae.