Ethanol producers are required to register with the EPA in accordance with the Renewable Fuels Standard. Here is a Checklist put out by the Renewable Fuels Association to help with the registration. In order to get a good code they need to show a couple advanced technologies - Notice "Corn Oil Extraction" is one of those prominently listed in the first question:
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Step 1: Determine whether renewable fuel produced at facility is eligible for an RFS2 D Code.
Is there an applicable approved pathway for conventional ethanol?
Corn ethanol produced using one of the following processes:
__ Dry mill using natural gas, biomass or biogas that uses one of the following:
__ At least two advanced technologies (Corn oil fractionation; Corn oil extraction; Membrane separation; Raw starch hydrolysis; Combined heat and power)
__ At least one advanced technology and dries no more than 65% of distiller grains annually
__ Dries no more than 50% of distiller grains annually
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SkunK
Saturday, April 3, 2010
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3 comments:
hi skunk
you do very good work ;)
# Final Rule | PDF Version (236 pp, 1.74MB, published on March 26, 2010)
Site 76
"...However, there are a growing number of
plants using front-end fractionation to
produce food-grade corn oil or back-end
extraction to produce fuel-grade corn oil
for the biodiesel industry. A company
called GreenShift has corn oil extraction
facilities located at five ethanol plants
in Michigan, Indiana, New York and
Wisconsin.47 Collectively, these
facilities are designed to extract in
excess of 7.3 million gallons of corn oil
per year. Primafuel Solutions is another
company offering corn oil extraction
technologies to make existing ethanol
plants more sustainable. For more
information on corn oil extraction and
other advanced technologies being
pursued by today’s corn ethanol
industry, refer to Section 1.4.1 of the
RIA...."
greets and good eastern for you and you family from germany :)
sts :)
http://www.regulations.gov/search/Regs/contentStreamer?objectId=0900006480ac93f2&disposition=attachment&contentType=pdf
http://www.epa.gov/otaq/regs/fuels/newuser.htm
"...If you think you may already be registered, please visit the continuously updated Programs, Company and Facility ID Master List (XLS) (2.4M; Updated daily MS Excel reader Exit EPA Disclaimer)..."
Final Regulatory Impact Analysis (PDF) (1120 pp, 19.7B, EPA-420-R-10-006, February 2010)
...section 1.4.1 in the RIA...
"...Corn Oil Extraction196
An alternative method to recovering the oil contained in the corn kernel is corn oil
extraction. Corn oil extraction is a method of mechanical separation, often by centrifuge, used to
extract the crude corn oil from the thin stillage (the non-ethanol liquid left after fermentation),
the DGS before it has been dried, or a combination of both. While the corn oil is of a lower
quality and value than that produced from corn fractionation, the equipment can be easily added
to existing ethanol production facilities and is relatively inexpensive. We estimate that adding
corn oil extraction equipment to an existing 100 million gallon per year corn ethanol plant would
cost between $5 million and $12 million, depending on the type of equipment used and the
percentage of oil recovered. The starch losses associated with dry fractionation do not occur
with corn oil extraction as the whole kernel still goes through the fermentation process. The
gains in plant capacity and reduced enzyme usage of the dry fractionation process are similarly
not realized.
The oil recovered using the corn oil extraction process is distressed oil and cannot be sold
as a food grade product. Markets for this product do exist, however, as an additive to cattle feed
97
or as a biodiesel feedstock. In addition to generating an additional revenue stream, extracting the
corn oil has several other benefits for the ethanol producer. Because the oil is an insulator,
removing it improves the heating efficiency of the DGS dryers and reduces the energy demand
of the ethanol plant. Reducing the oil content of the DGS also improves its flowability and
concentrates its protein content. The de-fatted DGS is potentially more marketable than DGS
containing corn oil, as higher quantities may be able to be included in the diets of poultry and
swine. Several ethanol producers are currently using corn oil extraction technology and have
reported oil recovery rates of greater than 33%. Technology providers have indicated that in the
near future they expect to be able to extract up to 75% of the oil contained in the kernel. For our
economic analyses we have assumed that by 2022 ethanol production plants using oil extraction
technology will be able to extract 66% of the oil in the corn. ..."
sts
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