NDLI: Biodiesel from Corn Distillers Dried Grains with Solubles: Preparation, Evaluation, and Properties

Content Provider	Springer Nature Link
Author	Moser, Bryan R. Vaughn, Steven F.
Copyright Year	2011
Abstract	A coproduct of dry-grind ethanol fermentation, corn distillers’ dried grains with solubles (DDGS) represents a low-cost feedstock with potential to integrate production of biodiesel and ethanol. Oil extracted from DDGS was converted into distillers’ grains methyl (DGME) and ethyl (DGEE) esters. Pretreatment using sulfuric acid was effective at lowering the acid value of the crude oil from 27.15 to less than 0.30 mg KOH g$^{−1}$, thus rendering it amenable to homogenous, base-catalyzed transesterification. Measurement of fuel properties and comparison to refined corn oil methyl (RCME) and ethyl (RCEE) esters revealed that the cold flow properties and oxidative stability of DGME and DGEE were deficient relative to RCME and RCEE. In the absence of antioxidants, DGME and DGEE did not meet the oxidative stability specifications of ASTM D6751 and EN 14214. The cetane number of DGEE was below the minimum limit specified in EN 14214. DGEE exhibited more favorable cold flow properties, iodine value, and energy content than DGME. Evaluation of blends (B5 and B20) in petroleum diesel fuel revealed that antioxidants and cetane enhancers would be required to meet the specifications of the US and European diesel fuel standards. Other fuel properties of the petrodiesel blends were largely neutral with respect to alkyl ester type and conformed to the limits specified in the respective standards.
Starting Page	439
Ending Page	449
Page Count	11
File Format	PDF
ISSN	19391234
Journal	BioEnergy Research
Volume Number	5
Issue Number	2
e-ISSN	19391242
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-12-03
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biodiesel Diesel fuel Distillers’ dried grains with solubles Transesterification Plant Breeding/Biotechnology Wood Science & Technology Plant Ecology Plant Sciences Plant Genetics & Genomics
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment Agronomy and Crop Science

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