The present article exposes a model of Mixed Integer Linear Programming (MILP) as a support for strategic decision making, guided to the location of facilities in ethanol supply chains under a configuration of collection centers of raw material and production plants, directly impacting costs related to logistics and operations. | Design of a supply chain to produce ethanol from one residuum and two coffee by-products Uncertain Supply Chain Management 7 2019 767 782 Contents lists available at GrowingScience Uncertain Supply Chain Management homepage uscm Design of a supply chain to produce ethanol from one residuum and two coffee by-products Mónica Y. Castro-Peñaa César Augusto Peñuelab and Julián Gil Gonzálezc a Universidad Católica de Pereira Pereira Colombia b Universidad Libre Pereira Colombia c Universidad Tecnológica de Pereira Pereira Colombia CHRONICLE ABSTRACT Article history The present article exposes a model of Mixed Integer Linear Programming MILP as a support Received November 4 2018 for strategic decision making guided to the location of facilities in ethanol supply chains under Received in revised format a configuration of collection centers of raw material and production plants directly impacting December 20 2018 costs related to logistics and operations. The model is applied to the supply chain for the Accepted January 18 2019 Available online production of ethanol from two by-products and a coffee residue pulp mucilage and stems January 18 2019 respectively in Colombia. The results obtained by the model allow identifying locations for Keywords the corresponding links to the three types of biomass considered and the flows of raw material Residues between coffee producing departments and collection centers from the latter to production By-products plants and from this where the transformation of ethanol to mixing centers is generated. Coffee Location Ethanol Supply chain 2019 by the authors licensee Growing Science Canada. 1. Introduction Recently many studies have focused on the search for energetically efficient renewable energies to minimize the negative impact on energy security generated by the use of fossil fuels and the reduction of their reserves worldwide Edenhofer et al. 2011 . These sources of renewable energy must guarantee industrial .
