The residual oil frying (ROF) is the cheapest raw material for biodiesel production. The collection and grouping of ROF is a popular practice of cooperatives, that's supply biodiesel plants. However, for the survival and performance of these cooperatives, these should generate profit. Therefore, this article represents a contribution by structuring and presentation a procedure of four stages, consisting in assist popular cooperatives in the analysis of generating profit by the ROF's collection and operation. This procedure was applied in an association of cooperatives located in the metropolitan region of Rio de Janeiro. From this application, it was concluded that the collection should planned by a software routing and her cost would have a reduction of almost 34% over the actual cost applied and the association of cooperatives would be able to generate profits and will be protected against market fluctuations, even if the price of ROF reached its lowest market price.
residual frying oil; cooperatives; biodiesel; economic viability of cooperatives