CO2 from US bio-ethanol plants?

This data-file tabulates the CO2 emissions from US bioethanol plants, which produce around 1Mbpd of liquid fuels, with an average CO2 intensity of 85kg/boe. In addition, we estimate 160kg/boe of CO2 are emitted in producing US corn, so bio-ethanol has a total CO2 intensity of 245kg/boe (c40% less than conventional oil products).

Our data are based on granular disclosures from 170 separate facilities, which have reported to the EPA and EIA disclosures. Hence we can screen more and less CO2-intensive States and Companies.

Covered companies, ranked by ethanol capacity, include Poet, Valero, Great Plains, Koch, Marathon and White Energy.