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NREL converts lignin into a nylon precursor with microbes

In the wild, P. putida naturally produces β-ketoadipic acid. NREL scientists used genetic engineering to make the process more prolific. Figure by Allision Werner, NREL

October 3, 2024

BY U.S. Department of Energy

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EPA: 2.16 billion RINs generated in June

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By Erin Krueger

July 17, 2026

Business Sustainable Aviation Fuels Biogas Cellulosic/Advanced  Advanced Biofuels 

The U.S. EPA on July 16 released data showing nearly 2.16 billion RINs were generated under the RFS in June, up 7% when compared to the same month of last year. Total RIN generation for the first half of 2026 reached 11.94 billion.

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The 2026 International Fuel Ethanol Workshop & Expo (FEW) concluded after three days of education, networking and collaboration that highlighted the ethanol industry's continued commitment to expansion, innovation and operational excellence.

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U.S. Agriculture Secretary Brooke Rollins on June 4 confirmed that release of the USDA’s feedstock guidelines to inform 45Z clean fuel production credit implementation “is imminent” with release scheduled for “this summer.”

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A researcher at the University of Wisconsin-Madison has published a paper that demonstrates hybrid combinations of lignocellulosic feedstock pretreatment methods can achieve high glucose yields with reduced energy consumption.

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The RNG Coalition on June 1 filed a lawsuit in the U.S. Court of Appeals for the D.C. Circuit challenging the U.S. EPA’s decision to partially waive the 2025 cellulosic renewable volume obligation (RVO) in its recent RFS “Set 2” rule.

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