DOI 10.1016/j.fuel.2021.122171 KEYWORDS Sugarcane; corn; first-generation ethanol; bioeconomy; avoided greenhouse gases emissions; bioenergy ABSTRACT Ethanol production implies in by-products generation, mainly vinasse and stillage, respectively generated from sugarcane and corn ethanol production in flex plants. Both by-products require efficient treatment routes to avoid environmental side-effects to support energy recovery. Accordingly, the aim of this study was to evaluate […]