Papers by Antonio Gonzalez Castaño
Industrial & Engineering Chemistry Research, 2018
In this work, we address the economic and environmental optimization of the operations in a natur... more In this work, we address the economic and environmental optimization of the operations in a natural-gas-based petrochemical complex through multiobjective optimization. The site is represented by a mathematical model that includes linear and nonlinear simplified models for single equipment and plants to calculate site production levels, taking into account main operating variables, utility consumption, intermittent delivery, inventory level profiles and product distribution. The resulting multiperiod, mixed integer nonlinear programming (MINLP) models are implemented in GAMS. The bicriteria MINLP model is solved with the e-constraint method. The obtained Pareto-optimal curve shows the trade-off between the economic and environmental aspects to pursuit sustainable operations of an existing integrated petrochemical complex. The environmental metrics is Global Warming Potential. ReCiPe is used for life cycle assessment and its 18 midpoint impact indicators and three end-point indicators are further analyzed ...
Chemical Engineering Transactions, 2015
This paper addresses the optimal operation of a petrochemical complex under economic and environm... more This paper addresses the optimal operation of a petrochemical complex under economic and environmental criteria. The site mathematical model includes linear and nonlinear simplified models for single plants to calculate site production taking into account main operating variables, intermittent deliveries and inventory variable profiles. The objective function considers the maximization of total profit and the minimization of environmental impact, subject to constraints on mass balances, bounds on product demands, equipment capacities and intermediate and final product storage tanks limitations. The environmental objective is measured with the global warming potential (GWP) and Eco-indicator 99 metrics according to the life cycle assessment procedures. The resulting mixed integer nonlinear programming (MINLP) models have been implemented in GAMS. The bi-criteria MINLP model is solved with the e-constraint method. The resulting pareto-optimal curve shows the tradeoff between the econo...
Fil: Beaver, Alexa. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico... more Fil: Beaver, Alexa. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Bahia Blanca. Planta Piloto de Ingenieria Quimica. Universidad Nacional del Sur. Planta Piloto de Ingenieria Quimica; Argentina
In this work, we address the economic and environmental optimization of the operations in a natur... more In this work, we address the economic and environmental optimization of the operations in a natural-gas-based petrochemical complex through multiobjective optimization. The site is represented by a mathematical model that includes linear and nonlinear simplified models for single equipment and plants to calculate site production levels, taking into account main operating variables, utility consumption, intermittent delivery, inventory level profiles and product distribution. The resulting multiperiod, mixed integer nonlinear programming (MINLP) models are implemented in GAMS. The bicriteria MINLP model is solved with the ε-constraint method. The obtained Pareto-optimal curve shows the trade-off between the economic and environmental aspects to pursuit sustainable operations of an existing integrated petrochemical complex. The environmental metrics is Global Warming Potential. ReCiPe is used for life cycle assessment and its 18 midpoint impact indicators and three end-point indicators are further analyzed for the petrochemical complex. The optimal solutions show that the environmental performance of the industrial cluster can be improved by a different distribution of processed raw material and intermediate products between the plants, as well as the means of transportation.
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Papers by Antonio Gonzalez Castaño