Ace approved to generate D3 RINs from corn kernel fiber ethanol

By BBI International | April 01, 2020

In late March, U.S. EPA approved Ace Ethanol’s Part 80 registration for the new D3MAX facility at Ace Ethanol LLC, in Stanley, Wisconsin. To participate in the Renewable Fuel Standard (RFS) program and generate renewable identification numbers (RINs), renewable fuel producers must meet the registration requirements in Title 40 CFR Part 80. With the EPA approval, Ace Ethanol can now produce cellulosic ethanol from corn kernel fiber and generate D3 RINs (one D3 RIN is generated for each gallon of cellulosic ethanol produced).

“Receiving Part 80 registration approval from EPA for the D3MAX plant at Ace Ethanol in Stanley, Wisconsin, is the last major hurdle for the first commercial D3MAX plant,” said Mark Yancey, chief technology officer for D3MAX. “With this EPA approval, Ace can now begin to sell cellulosic ethanol and generate D3 RINs by converting their corn kernel fiber to ethanol.”

Ace Ethanol owns and operates the plant, which utilizes D3MAX technology under license. Construction of the plant began Oct. 1, 2018.

“Ace Ethanol has done a tremendous job in commissioning and starting up the first commercial D3MAX plant,” Yancey said. “January is not the best time to startup a new process in Wisconsin as the brutally cold weather froze lines and made startup more difficult. The Ace startup team worked very long hours and did a fantastic job. Within weeks, the D3MAX plant was operating at 80 percent of design capacity and 70 percent of design yield, which is quite the achievement for the startup of a new cellulosic ethanol process.”

To learn more about D3MAX visit:


D3MAX is a technology company formed by BBI International to license its patented cellulosic ethanol technology to dry mill ethanol plants in the U.S. and Canada. The cutting-edge technology converts corn fiber and residual starch in distillers grains to cellulosic ethanol. This is a 1.5 billion gallon per year market, and BBI International intends to capture a significant portion of this by licensing its D3MAX technology to existing ethanol plants.

About Ace Ethanol LLC

Ace Ethanol LLC is an ethanol production facility built by local investors in Stanley, Wisconsin. Each year the facility takes in more than 17 million bushels of corn, resulting in an output of approximately 50 million gallons of ethanol, 118,000 tons of DDGS, 8,000 tons of distillers corn oil, and 65,000 tons of carbon dioxide. The facility has a storage capacity of 2 million bushels on site.

Contact Information:

Mark Yancey



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