Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 5/15/2004
Publication Date: 5/30/2004
Citation: Johnston, D., Yee, W.C., Singh, V., Mcaloon, A.J. Convention corn wet milling process and cost models. Proceedings of the Corn Utilization & Technology Conference. Indianapolis, IN., June 7-9, 2004. Poster Presentation CD Rom.
Technical Abstract: A process and cost model for the conventional corn wet milling process has been developed to aid research being conducted by the Agricultural Research Service, Eastern Regional Research Center. Information on the corn wet milling process was obtained from various technical sources including commercial wet milling companies, industry experts, suppliers of technology and equipment to the corn wet milling industry and others knowledgeable in the wet milling of corn. A design was developed with a process simulation program (Aspen Plus) for a generic corn wet milling facility processing 100,000 bushels of corn per day. Capital and operating costs estimates were then developed in an Excel spreadsheet linked to the Aspen design information. Based on the information from the model, we can estimate the cost of production per pound of dry starch using the input prices for corn and other wet milling coproducts. We have also conducted a variety of sensitivity studies utilizing modifications such as feedstock costs, increases in water usage, corn compositional variations and the sale of wet corn gluten feed. Process flow diagrams and current dollar amounts for each sensitivity study will be presented.