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Research Project: FIBER EXTRUSION TO IMPROVE USE AND PRODUCTION OF ETHANOL BYPRODUCTS

Location: Brookings, South Dakota

Title: ADDING VALUE TO DISTILLERS GRAINS BY PELLETING

Author

Submitted to: Meeting Proceedings
Publication Type: Proceedings/Symposium
Publication Acceptance Date: May 1, 2008
Publication Date: June 3, 2008
Publisher's URL: http://www.corntechconf.org/index.asp
Citation: Rosentrater, K.A. 2008. Adding value to distillers grains by pelleting. Proceedings from Corn Utilization and Technology Conference, June 2-4, 2008, Kansas City MO, pp. 1-6.

Interpretive Summary: As the ethanol industry continues to expand, it is imperative to augment markets for coproducts. Toward that end, pelleting holds much promise. This densification process can convert DDGS into physical forms that will expand the potential sales base, such as rangeland cattle. To date, even though there is much interest, very little work has actually been conducted on pelleting of DDGS. The goals of this presentation are to examine the pelleting process, discuss parameters which influence pelleting performance, and to share insights gained by investigations into pelleting DDGS from a commercial fuel ethanol plant, both on a laboratory scale as well as a commercial scale. DDGS pellets have been produced with excellent quality, as evidenced by high Pellet Durability Indices, and exhibited minimal nutrient degradation. But, further studies are necessary to quantify the effects of various processing conditions (including L/D ratios), other DDGS sources, and the efficacy of binders.

Technical Abstract: As the ethanol industry continues to expand, it is imperative to augment markets for coproducts. Toward that end, pelleting holds much promise. This densification process can convert DDGS into physical forms that will expand the potential sales base, such as rangeland cattle. To date, even though there is much interest, very little work has actually been conducted on pelleting of DDGS. The goals of this presentation are to examine the pelleting process, discuss parameters which influence pelleting performance, and to share insights gained by investigations into pelleting DDGS from a commercial fuel ethanol plant, both on a laboratory scale as well as a commercial scale. DDGS pellets have been produced with excellent quality, as evidenced by high Pellet Durability Indices, and exhibited minimal nutrient degradation. But, further studies are necessary to quantify the effects of various processing conditions (including L/D ratios), other DDGS sources, and the efficacy of binders.

   

 
Project Team
Rosentrater, Kurt
Dashiell, Kenton
 
Publications
   Publications
 
Related National Programs
  Quality and Utilization of Agricultural Products (306)
  Bioenergy & Energy Alternatives (307)
 
Related Projects
   ASSESSING THE MANUFACTURING POTENTIAL FOR ETHANOL PROCESSING RESIDUE STREAMS
   USE OF DDG AS A BIOCOMPOSITE FABRICATION MATERIAL
   ASSESS UTILITY AND VALUE OF DISTILLERS GRAINS AND MODIFIED DISTILLERS GRAINS
   IMPROVED USES AND VALUES FOR THE BYPRODUCTS OF THE DEVELOPING BIOFUELS INDUSTRY
   EXAMINING THE EFFECTS OF PROCESSING PARAMETERS ON PHYSICAL AND FLOW PROPERTIES OF DDGS
 
 
Last Modified: 11/08/2008
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