Farmers, ethanol industry employees and union members at the Iowa State Capitol May 2025 voice their support for the Summit Carbon Solutions pipeline. (Cami Koons/Iowa Capital Dispatch)

DES MOINES — Iowa biofuels and corn experts congratulated Nebraska for its first shipments of carbon dioxide on the Tallgrass Trailblazer pipeline, but said Wednesday that the development means Iowa is no longer king at turning corn into ethanol.

Monte Shaw, the executive director of Iowa Renewable Fuels Association, said now that Nebraska has a functioning CO2 pipeline, ethanol plants in the state can take advantage of lucrative tax credits from the federal government and sell into the ultra-low carbon ethanol market.

“Iowa has worn the crown,” Shaw said at a new conference Wednesday. “We have been the

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