Comparing residual production from two alcohol fuel processes: an economic evaluation.
Ott S.L.
Extract: Alcohol may be produced from corn using one of several alternative processes. In this economic analysis, two processes, each with a somewhat different mix of by-product residues are compared. They are the conventional distillery process and a milling process. The milling process has higher capital and start-up costs, but these are more than offset by lower operating costs and higher by-product values. From a broader societal view the milling process is also favored since its by-products--corn gluten meal, corn gluten feed, fodder yeast, and corn oil--are better feed and food substitutes for soybean products than the distillers' dried grain and solubles produced from the conventional distillery process. This allows greater land substitution between soybeans and corn which results in somewhat lower food price increases at given levels of alcohol production.
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