Getting fuel from plants like corn
and sugar cane is not that efficient. That’s
why researchers are working on so-called
cellulosic biofuels. The process turns things
like corn stalks, wood chips, and grasses into
fuel. As Mark Brush reports, some new
cellulosic refineries are breaking ground:
Transcript
Getting fuel from plants like corn
and sugar cane is not that efficient. That’s
why researchers are working on so-called
cellulosic biofuels. The process turns things
like corn stalks, wood chips, and grasses into
fuel. As Mark Brush reports, some new
cellulosic refineries are breaking ground:
The new refineries are being built with money from the federal government. The hope is
to perfect a fuel source that a) doesn’t come from food, and b) is much more efficient
than corn-based ethanol.
The problem is it’s hard to get at the sugars inside the
plants. But the payback could be big. For every one unit of energy going in,
cellulosic ethanol could spit out about five to ten units of energy.
Brian Davidson is with the BioEnergy Science Center. He says industry officials are
hopeful, but he thinks these new refineries are just a first step.
“They believe that those technologies will be more widely applicable, but I actually
believe that we’re going to need further technology improvements to go from these first
few handful of plants, handful of bio-refineries, to make them widespread.”
Davidson says scientists still have not perfected ways to break down the plants in a
cost-effective way.
For The Environment Report, I’m Mark Brush.