Renewable Natural Gas From Corn Stover
When DuPont shut down its cellulosic ethanol plant in 2017 after years of effort and $225 million in investment, it looked like the process of converting corn stover to renewable energy was a failure.
Then the Germans took over.
In 2018, Verbio North America, a subsidiary of Verbio Vereinigte BioEnergie in Germany, bought the plant from DuPont and began its conversion. Verbio, though, wasn't looking at cellulosic ethanol, but saw an opportunity instead to convert corn stover to renewable natural gas (RNG).