Mass and Heat Integration in Ethanol Production Mills for Enhanced Process Efficiency and ExergyBased Renewability Performance . by Pablo A. Silva Ortiz. 1,2,*, Rubens Maciel Filho. 1 and . John Posada. 2. 1. School of Chemical Engineering, Laboratory of Optimization, Design and Advanced Process ControlLOPCA, University of Campinas, Campinas, Brazil. 2. Department of .