Biofuels: Why this plant could be a game-changer for renewable fuel

A new biofuel factory in Iowa uses farm waste to produce renewable fuel on a large, commercial scale. Unlike corn-based ethanol, this so-called cellulosic ethanol doesn't push up food prices or use farm space. 

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Charlie Neibergall/AP
King Willem-Alexander, center, of the Netherlands greets DSM CEO and Chairman Feike Sijbesma, left, and POET Executive Chairman Jeff Broin during the opening of one of the nation’s first commercial size cellulosic ethanol plants, last week, in Emmetsburg, Iowa. Project Liberty is a $250 million plant that will make 25 million gallons of ethanol a year from corn cobs, stalks, leaves and other plant residue.

A new factory that hopes to break oil’s stranglehold over America’s transportation sector has just opened its doors in Iowa.

The $275 million factory will churn out ethanol – a renewable fuel that can be blended directly with gasoline and used normally in cars and trucks. However, this factory won’t produce traditional ethanol, which is made from corn. Instead, it will use farm waste from left over corn stalks, husks, corncobs, and leaves.

Dubbed Project Liberty, the new cellulosic ethanol factory in Iowa promises a “new era” for renewable fuels. It is the second commercial-scale cellulosic ethanol plant to be constructed in the United States, after the Indian River BioEnergy Center in Florida, which produces 8 million gallons of cellulosic ethanol annually from yard and municipal waste.

Project Liberty will up the ante, producing an estimated 25 million gallons of ethanol each year. Backed by a $100 million investment from the U.S. Department of Energy, the project was spearheaded by a partnership between the American firm POET, and Dutch biotech company DSM. It will source its feedstock from Iowa farmers within a 40-mile radius of the plant.

This is a major step forward for renewable fuels. The much-maligned corn-based ethanol competes with food supplies, contributes to a rise in food prices, uses up farm land, and in the end, the greenhouse gas benefit is trivial, if not nonexistent.  

The big question is what this plant will mean for the cellulosic ethanol industry going forward.

Cellulosic ethanol has struggled for years to economically produce usable fuel, disappointing projections about cost and scalability. The U.S. has a renewable fuels standard in place, which calls for 16 billion gallons of cellulosic ethanol to be blended in to the nation’s fuel supply by 2022, a target that will be all but impossible to meet.

 

Part of the reason is that the technology needed isn’t easy. Breaking down cellulose is tough work, as Purdue University’s Wallace Tyner explained to Fortune: “The technologies didn’t advance as fast as people thought or hoped they would. Cellulosic feedstocks are really recalcitrant. It is really difficult to break out the cellulose and hemicellulose from the lignant,” he said. Corn ethanol can be produced 60 cents to $1.67 per gallon cheaper than its cellulosic counterpart. As a result, the entire renewable fuels mandate is being met by the corn variety.

But the industry is gaining momentum. Dupont expects to open a facility in Iowa by the end of the year that would produce 30 million gallons per year. Abengoa Bioenergia plans to open a biomass power plant and ethanol production facility in Kansas this month. Just like the other plants, the Abengoa facility will not only use farm waste to produce 25 million gallons per year of cellulosic ethanol, it will also use similar waste products to generate 22 megawatts of renewable electricity.

And the Project Liberty site hopes to be a test case that can be replicated worldwide. If it proves itself to be an attractive source of renewable fuel, the technology can be licensed and copied elsewhere.

It is still early days for cellulosic ethanol, but the enormous volumes of corn ethanol in the mix have already riled up the oil industry. Representatives from energy interests are in a heated battle in Washington over the Renewable Fuels Standard, with each side hoping to persuade Congress and the Environmental Protection Agency. Each year, the EPA sets the blending requirements, which dictates how much ethanol must be blended in to the fuel supply.

The oil industry wants weaker requirements for blending in ethanol. The American Petroleum Institute says that using more ethanol could cause damage to millions of cars that are not equipped to handle higher concentrations. It also says there isn’t enough infrastructure and fueling stations.

The ethanol industry, obviously, disagrees and wants a firm mandate. They criticize the oil industry for fear mongering, and accuse them of purposefully opting not to invest in the requisite infrastructure.

EPA is expected to announce a standard in the coming weeks. Whatever the outcome, cellulosic ethanol will be just a sideshow. But if Project Liberty is successful, that could one day change in a big way.

Source: http://oilprice.com/Alternative-Energy/Biofuels/New-Cellulosic-Ethanol-Plant-Commercializes-Renewable-Fuel.html

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