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      A Multiobjective Stochastic Optimization Scheme for the Problem of Chemical Production for Sugarcane Companies Translated title: Un esquema de optimización estocástica multiobjetivo para el problema de la producción química para empresas de caña de azúcar

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          Abstract

          Abstract: This paper presents a multiobjective optimization stochastic scheme for production planning for sugarcane companies under uncertainty. The proposed approach considers three stages. The first stage comprises the mass and energy balances for determining process flows. The second stage considers the formulation of a Multiobjective Deterministic Model (MODM) by considering two objective functions: maximizing the gross margin and minimizing the environmental impact. The MODM is given by different production plans that respond differently to the parameters' variability under uncertainty. Finally, the last stage considers stochastic elements (i.e., product prices, demands, and costs) within the deterministic scheme to obtain a Multiobjective Stochastic Model (MOSM). A case study's computational results based on the Colombian sugarcane industry show the proposed scheme's effectiveness. Results include the investment strategy for optimal production planning with an analysis of the parameters' uncertainty on the economic performance of the planning production configurations.

          Translated abstract

          Resumen: Este artículo presenta un esquema de optimización estocástica multiobjetivo para la planificación de la producción de empresas cañeras bajo incertidumbre. El enfoque propuesto considera tres etapas. La primera etapa comprende los balances de masa y energía para determinar los flujos del proceso. La segunda etapa considera la formulación de un Modelo Determinístico Multiobjetivo (MÜDM, por sus siglas en inglés) considerando dos funciones objetivo: maximizar el margen bruto y minimizar el impacto ambiental. El MÜDM está dado por diferentes planes de producción que responden de manera diferente a la variabilidad de los parámetros bajo incertidumbre. Finalmente, la última etapa considera elementos estocásticos (es decir, precios de productos, demandas y costos) dentro del esquema determinista para obtener un Modelo Estocástico Multiobjetivo (MÜSM, por sus siglas en inglés). Los resultados computacionales de un estudio de caso con base en la industria de la caña de azúcar colombiana muestran la efectividad del esquema propuesto. Los resultados incluyen la estrategia de inversión para la planificación óptima de la producción con un análisis de la incertidumbre de los parámetros en el rendimiento económico de las configuraciones de producción planificadas.

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          Production of first and second generation biofuels: A comprehensive review

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            Effective implementation of the ε-constraint method in Multi-Objective Mathematical Programming problems

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              Fuel ethanol production: process design trends and integration opportunities.

              Current fuel ethanol research and development deals with process engineering trends for improving biotechnological production of ethanol. In this work, the key role that process design plays during the development of cost-effective technologies is recognized through the analysis of major trends in process synthesis, modeling, simulation and optimization related to ethanol production. Main directions in techno-economical evaluation of fuel ethanol processes are described as well as some prospecting configurations. The most promising alternatives for compensating ethanol production costs by the generation of valuable co-products are analyzed. Opportunities for integration of fuel ethanol production processes and their implications are underlined. Main ways of process intensification through reaction-reaction, reaction-separation and separation-separation processes are analyzed in the case of bioethanol production. Some examples of energy integration during ethanol production are also highlighted. Finally, some concluding considerations on current and future research tendencies in fuel ethanol production regarding process design and integration are presented.
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                Author and article information

                Journal
                cein
                Ciencia e Ingeniería Neogranadina
                Cienc. Ing. Neogranad.
                Universidad Militar Nueva Granada (Bogotá, Distrito Capital, Colombia )
                0124-8170
                1909-7735
                June 2022
                : 32
                : 1
                : 115-136
                Affiliations
                [3] Cali Bogotá orgnamePontificia Universidad Javeriana Colombia willocam@ 123456javerianacali.edu.co
                [2] orgnameFaculty of Business Management orgdiv2Department of Accounting and Finance john.wilmer.escobar@ 123456correounivalle.edu.co
                [1] Cali Bogotá orgnamePontificia Universidad Javeriana orgdiv1Department of Civil and Industrial Engineering Colombia hperea@ 123456ingprovidencia.com
                Article
                S0124-81702022000100115 S0124-8170(22)03200100115
                10.18359/rcin.5811
                bd5f558e-4e53-48de-bf92-f9978cc957b0

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 01 June 2021
                : 22 January 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 47, Pages: 22
                Product

                SciELO Colombia

                Self URI: Full text available only in PDF format (EN)
                Categories
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                biomass,bioenergy,bioplastic,bioethanol,stochastic modeling,Multiobjective optimization,impactos ambientales,biomasa,bioenergía,bioplástico,bioetanol,modelado estocástico,optimización multiobjetivo,environmental impacts

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