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POET-DSM Plans On-Site Enzyme Manufacturing Facility at Project Liberty

Cellulosic Ethanol Plant Has Achieved 70 Gallons Per Ton Conversion Rate

February 21, 2017
Emmetsburg News

SIOUX FALLS, S.D. - POET-DSM Advanced Biofuels will build an on-site enzyme manufacturing (OSM) facility in Emmetsburg, pending state and local approvals.

The facility will be integrated into the Project Liberty technology package, replicable in future facilities.

For Project Liberty, the OSM will directly pipe enzymes into the Liberty production process without requiring downstream processing, stabilizers and other chemicals required for enzyme transportation.

Article Photos

PROJECT LIBERTY MANAGERS -- The public welcomed Jason Martin, Project Liberty General Manager, Bryan Colvin, Project Liberty Plant Manager, and Chris Hartman, Project Liberty Quality Manager (from the left), at the Chamber of Commerce weekly coffee held at?POET-DSM offices in Emmetsburg last week. --Jane Whitmore photo

New enzymes developed by DSM are also expected to improve effectiveness of the enzyme mix, further reducing costs for the process. CRB has been awarded the contract for the design, engineering and construction management. Basic engineering is complete, and construction is expected to begin in late spring or early summer.

Project Liberty is a cellulosic ethanol plant that uses corn cobs, leaves, husk and some stalk to produce renewable biofuel. Over the last 18 months significant design improvements have been made to the plant and further investments to improve yields and make the process more consistent and reliable.

The facility is producing at a rate of 70 gallons per bone-dry ton of biomass, near the target conversion rate, and is currently in a ramp-up phase.

"Enzymes for cellulosic ethanol have been improving dramatically in recent years, and this is another leap delivered by our partner DSM in both cost and performance," POET President and COO Jeff Lautt said. "It will be a valuable addition to POET-DSM's integrated licensing package."

"We have reached some important production thresholds in recent months. This gives us the confidence to move to this next level of technology development," Atul Thakrar, President DSM Bio-based Products & Services said. "The startup and ramp-up of Project Liberty have provided valuable experience for developing a cost-effective process that can be replicated across the U.S. and world."



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