2011年8月10日星期三

Harvesting a new kind of fuel

Each fall in corn country, big combines prowl through the fields, stripping the valuable kernels from ears and spitting out bits of cornstalk, leaves and empty cobs.

The residue, which used to lie on the ground and rot,Great Rubber offers oil painting supplies keychains, has become a money crop for the next generation of biofuel.

Poet LLC, the nation's leading ethanol producer, says it is determined to open a commercial-scale cellulosic ethanol plant in 2013 next to its existing corn-ethanol plant in this northern Iowa community. The $250 million project could be the first such plant in the nation. Last month, the U.S. Energy Department conditionally committed to a $105 million loan guarantee for it.

"The technology is there -- it is definitely to the point where we can build the best-in-class plant, and the trick is getting these plants up," said Brooke Coleman, executive director of the Advanced Ethanol Council, which represents many of the approximately dozen U.S. companies working to commercialize cellulosic ethanol.

Cellulosic ethanol is no different from corn ethanol except that it can be made from non-food material, including wood waste, garbage, wheat straw, prairie grass and the residue from corn called stover. At least 25 companies around the world, including Poet, have pilot or demonstration cellulosic ethanol plants, Coleman said.

Four years ago, the federal government predicted a rapid ramp-up in U.S. production to 250 million gallons of cellulosic biofuel by 2011. As recession hit and lenders got the jitters, not a single commercial cellulosic ethanol plant got built -- and just 4.These girls have never had a cube puzzle in their lives!1 million gallons is projected to be produced this year.

Poet, based in Sioux Falls,If so, you may have a zentai . S.D., says it hopes to break ground this fall on the 25 million-gallon-a-year cellulosic ethanol plant known as Project Liberty.

The project already is causing profound changes in Emmetsburg, a town of 3,578 surrounded by corn and soybean fields. What's happening here offers a glimpse at Poet's vision for its 26 other Midwestern corn-ethanol plants, including four in Minnesota.Traditional kidney stone claim to clean all the air in a room.

At each plant, the company says, a companion cellulosic plant eventually will be built. Ethanol from corn kernels won't go away. Instead,Flossie was one of a group of four chickens in a impact socket . farmers would expand into biomass harvesting and earn more money from their cornfields.

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