The
distillers corn oil is the main by-product of the ethanol production
from the maize grain. This by-product was initially used in the
animal feed. This is because the distillers corn oil is a rich source
of linoleic acid, an essential fatty acid, and is thus used as a fat
feed in the poultry and swine industry. But, nowadays the distillers
corn oil has become a popular feedstock for the production of
biodiesel.
The
distillers corn oil is produced during the ethanol production. During
ethanol production, corn is fermented to form ethanol. The ethanol is
then boiled off leaving the rest of the distilled mixture in the
bottom. This mixture is either dried off for further processing into
distilled corn oil or is used directly. Based on this, the
distillation type of the distillers corn oil is decided.
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The
distillers corn oil was previously utilized in animal feed. But now,
the distillers corn oil is the second-most used feedstock for
domestic biodiesel production in the world only after soybean oil.
The distillers corn oil has a feedstock share of 13.17% in the
biodiesel production internationally. Many ethanol producing
companies have started co-producing the distillers corn oil have
located these distillers corn oil production facilities at the
ethanol plants itself. This is due to the increasing demand of the
distillers corn oil in the biodiesel production.
The
distillers corn oil directly after distillation contains elevated
levels of metals(minerals), gums, color, and free fatty acid(FFA).
This is very beneficial for the animal feed. But during recent
discoveries, distillers corn oil has been termed a very good source
for biodiesel. But before the use of the distillers corn oil as the
feedstock of biodiesel, it has to be first purified from these
impurities that are present. This is because of the damage these
impurities in the distillers
corn oil to the catalytic convertors.
The
distillers corn oil use in the biodiesel feedstock has doubled in the
U.S. from 2011 to 2102 period. 40.5 million gallons of distillers
corn oil was produced in 2011 which jumped to 76 million gallons in
2012. This saw an increase of 53% in the use of the distillers corn
oil.
Some
of the leading players of global Distillers Corn Oil market include
Green Plains Inc., Cardinal Ethanol LLC, Redfield Energy LLC, POET
LLC, Greenfield Global Inc., United Wisconsin Grain Producers LLC,
Aemetis Inc., Ace Ethanol LLC, RPMG Inc., Patriot Renewable Fuels,
LLC.
Greenfield
Global Inc., in 2017 has expanded its bio refinery in Varennes,
Quebec for sustainable biofuel production. This was to reduce the
waste production by the company. The expansion was supposed to
increase its annual ethanol production capacity by 70%. And this
expansion was planned to carry out when the government was seeking to
reduce harmful gas emissions.
The
cumulative production of distillers corn oil has increased by 15% in
Y-o-Y growth of the year 2016 and 2017. The distillers corn oil use
in the biodiesel is increasing as the ethanol producing industries
are increasing. The analysis shows that U.S. ethanol biorefineries
are capturing two-thirds of distillers corn oil market during the
ethanol production and selling it into the market. Also, the
distillers corn oil use as a feedstock in the biodiesel manufacturing
has increased from 30% in 2015 to near 50% in the year 2017. The U.S.
ethanol industry in the year 2017 produced 3.7 billion pounds of
distillers corn oil.
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