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  • bluecheese4u bluecheese4u Jul 18, 2013 7:51 PM Flag

    EPA comment period closed on corn fiber as ag residue, biobutanol

    EPA comment period closed on corn fiber as ag residue, biobutanol

    By Holly Jessen | July 18, 2013

    In all, the U.S. EPA received 117 comments on a proposed rule on renewable fuel standard (RFS) pathways, including corn kernel fiber-to-cellulosic ethanol and issues relating to biobutanol. The comment period ended July 15.

    The Renewable Fuels Association submitted 28 pages of comments on the proposed rule. In it, the group supported EPA’s efforts to add corn kernel fiber to the list of qualifying cellulosic biofuel feedstocks as well as what it called a simplified approach to cellulosic RIN generation. “We applaud EPA for confirming that corn kernel fiber is ‘crop residue,’ and believe the agency has proposed a sensible and straightforward approach to RIN generation for renewable fuels derived from cellulosic biomass feedstocks,” wrote RFA President and CEO Bob Dinneen. “Several technologies to convert corn kernel fiber into cellulosic ethanol have been developed in recent years, and a number of existing ethanol plants have already adopted these technologies or are poised to integrate them in the near future. The volumes of cellulosic ethanol produced from corn kernel fiber can meaningfully contribute to RFS2 cellulosic biofuel requirements in the near term.”

    Growth Energy’s comments advocated for additional pathways to meet the goals of the RFS, including the pathway of corn fiber-to-cellulosic ethanol and other crop residues. “We believe that any renewable biomass meeting the 60 percent greenhouse gas threshold should be able to generate cellulosic RINs,” the comments said.

    The National Corn Growers Association also submitted comments. The group said it felt all biomass feedstocks should be categorized as renewable and that corn fiber should be defined as crop residue as well as qualify as a feedstock for cellulosic ethanol, generating D3 RINs. “100 percent of the volume of renewable fuel from specific cellulosic feedstock sources should be allowed to generate

 
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