Major ethanol producer to build cellulosic refinery in Iowa

Millions in government grants go to start the state's first commercial refinery for ethanol made from cobs and grasses














Share on Tumblr



NEW ETHANOL PLANTS: Some studies have found cellulosic ethanol to be better for human and environmental health than grain ethanol. Shown here: a grain ethanol plant in Iowa. Image: FLICKR/FREDDTHOMPSON

The nation's largest grain ethanol producer, Poet LLC, will use state and federal grants to start work on the company's first commercial cellulosic refinery in Iowa.

The Sioux Falls, S.D.-based company is preparing to convert a 50-million-gallon-a-year grain ethanol plant in Emmetsburg, Iowa, into an integrated refinery that would produce fuels from both corn kernels and cobs.

"Project Liberty" would begin production in 2011 with a 125-million-gallon-a-year nameplate capacity, followed by several more dual-fuel plants throughout the state, company officials claim.

The Emmetsburg makeover will cost more than $200 million, but Poet has secured grants of up to $80 million from the U.S. Department of Energy and $14.75 million from Iowa. The 18-member Iowa Power Fund Board, which includes state agency directors and gubernatorial appointees, approved the funds yesterday.

Poet would pay back a portion of the state grant, depending on if and where the company replicates the cellulosic technology, said Brian Crowe, senior program planner with the Iowa Office of Energy Independence. For example, if Poet built a second commercial plant in Iowa, the company would pay the state $100,000; if Poet replicated the technology in another state, the company would pay Iowa $500,000.

If Poet licensed its technology to another company, and it built a refinery outside of Iowa, Poet would pay the Hawkeye State as much as $800,000, according to the contract.

"Obviously, our preference is to have the plant replicated in Iowa," Crowe said.

Poet plans to raise $2 billion of debt, equity and public financing and invest the money in six more dual-fuel refineries in Iowa, said Nathan Schock, a company spokesman. The makeovers would be modeled after a 20,000-gallon-a-year integrated refinery Poet opened in Scotland, S.D., late last year.

"We believe the quickest route to commercial cellulosic ethanol production in this country is this integrated model," added Schock, who said construction of the Emmetsburg plant could begin as soon late 2009.

Cellulosic ethanol is not produced and sold commercially in the United States, but Poet officials say they have been able to validate lab tests at the South Dakota pilot refinery. The privately held company is also working with the Danish biotechnology company Novozymes to develop enzymes that cost-effectively break down tough, cellulosic plant fiber found in corncobs.

Poet, which operates 26 grain corn ethanol refineries throughout the Midwest, has the capacity to produce about 1.5 billion gallons of the biofuel annually. But company CEO Jeff Broin contends that the United States could produce as much as 85 billion gallons of cellulosic ethanol annually from corncobs, switchgrass, yard waste and other woody biomass.

Reprinted from Greenwire with permission from Environment & Energy Publishing, LLC. www.eenews.net, 202-628-6500


3 Comments

Add Comment
View
  1. 1. dukebaker 03:37 PM 2/27/09

    I think this is a great use of the ethanol plants we have already built. I hope they can set the system up so it will be nearly 100% energy positive so the anti-ethanol people will shut up.
    Jim Baker

    Reply | Report Abuse | Link to this
  2. 2. California Dreaming 06:36 PM 3/2/09

    Better to burn cellusic ethanol than imported oil. In the long run we need cleaner alternative energy sources than ethanol, but we are a long way from getting off of our oil addiction, so this sounds like a very good idea.

    Reply | Report Abuse | Link to this
  3. 3. dukebaker 10:20 PM 3/2/09

    I am not sure what is unclean about ethanol. If no hydrocarbon fuel is used in making it, then it adds no new greenhouse gas. It only returns the CO2 that was picked up from the air by the source material. That is pretty much the way ethanol is made in Brazil.
    Jim

    Reply | Report Abuse | Link to this
Leave this field empty

Add a Comment

You must sign in or register as a ScientificAmerican.com member to submit a comment.
Click one of the buttons below to register using an existing Social Account.

More from Scientific American

See what we're tweeting about

Scientific American Editors

More »

Free Newsletters


Get the best from Scientific American in your inbox

Solve Innovation Challenges

Powered By: Innocentive

  SA Digital
  SA Digital

Email this Article

Major ethanol producer to build cellulosic refinery in Iowa

X
Scientific American Magazine

Subscribe Today

Save 66% off the cover price and get a free gift!

Learn More >>

X

Please Log In

Forgot: Password

X

Account Linking

Welcome, . Do you have an existing ScientificAmerican.com account?

Yes, please link my existing account with for quick, secure access.



Forgot Password?

No, I would like to create a new account with my profile information.

Create Account
X

Report Abuse

Are you sure?

X

Institutional Access

It has been identified that the institution you are trying to access this article from has institutional site license access to Scientific American on nature.com. To access this article in its entirety through site license access, click below.

Site license access
X

Error

X

Share this Article

X