This paper aims to evaluate the integration of corn in existent sugarcane mills in Brazil to increase ethanol production. The study considered an autonomous distillery factory of medium-capacity, and the incremental benefits from corn processing during the sugarcane off-season. A process simulation and a cost analysis were developed to estimate the technoeconomic feasibility. The data and parameters employed were in accordance with Brazilian practice. The results show that a sugarcane plant operating 4 months during the off-season with corn requires an investment of US$ 13.4 million, obtained the return of investment in 4 years, and a revenue estimated in US$ 666K yr -1 due to ethanol surplus production.
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