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February 2, 2018
PNNL Researchers Convert Ethanol To Butadiene In Single Step

On January 23, 2018, DOE announced that researchers at PNNL have developed a catalyst capable of converting ethanol directly into butadiene.  Butadiene is the building block for nearly every major synthetic plastic or rubber in the U.S, including tires, fuel hoses, and children’s toys.  The project, which is sponsored by BETO, aimed to generate butadiene from renewable sources by developing a new catalyst that can convert ethanol into butadiene.  The current ethanol-to-butadiene catalysts required pure ethanol, free of water, to be passed through multiple times to achieve a 70 percent yield.  The team of PNNL researchers has developed a silver nitrate powder and zirconyl nitrate-based catalyst capable of converting 70 percent of aqueous ethanol to butadiene in a single pass under industrially-relevant conditions.  According to Vanessa Dagle, it is the most active ethanol-to-butadiene catalyst reported to date and introduces the possibility of renewable ethanol as a source of butadiene in addition to petroleum.


 
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