Síntesis de procesos para la adición de valor y la diversificación de los productos derivados del ácido láctico mediante la metodología P-graph.

dc.contributorRodriguez Niño, Gerardo
dc.contributorGil Chaves, Iván Darío
dc.contributorGrupo de Investigación en Procesos Químicos y Bioquímicos
dc.creatorPimentel Losada, Jeanpierre Andrés
dc.date.accessioned2020-01-31T13:55:10Z
dc.date.available2020-01-31T13:55:10Z
dc.date.created2020-01-31T13:55:10Z
dc.date.issued2020-01-30
dc.date.issued2020-01-30
dc.identifierhttps://repositorio.unal.edu.co/handle/unal/75545
dc.description.abstractThis work illustrates the implementation of P-graph methodology for process synthesis, to generate conceptual designs, aiming at the addition of value for the products of the sugar cane’s productive chain. Specifically, this methodology is employed to find algorithmically transformation processes which constitute alternatives to diversify the products generated from the lactic produced from sugar cane. A set of products with significant added value, and a set of alternatives for their production process were considered. Costs estimations were obtained from rigorous simulation in Aspen Plus®, and subsequently employed along with the algorithms of P-graph methodology, to generate the optimal process structure and several near-optimal alternatives for different cases of study in assorted circumstances. Among the evaluated products lactic acid esters such as methyl and ethyl lactate, were considered. Propylene glycol concentrated lactic acid and polylactic acid were also considered as alternatives of value for the lactic acid. Methyl lactate was found to be the most relevant product, whereas propylene glycol is the least desirable product under the evaluated economic scenario. Besides to continuous production process, the methodology was also evaluated for batch conditions, considering the generation of lactates for cosmetic and flavor industry. The scheduling of the plant and the equipment involved in the process are obtained as the output of the methodology. Furthermore, a set of non-dominated solutions presented as a Pareto diagram is generated, thus presenting alternatives of processing and illustrating the trade-offs between time span and profit.
dc.description.abstractEl presente trabajo ilustra la implementación de la metodología de síntesis y optimización de procesos basada en P-graphs, para la generación de diseños conceptuales con miras a la adición de valor a la cadena productiva de la caña de azúcar. Específicamente, se emplea la metodología para encontrar alternativas de diversificación del ácido láctico que puede producirse a partir de la caña, evaluando varios posibles productos en diferentes mercados, así como varias alternativas de producción de estos. Se realizan estimaciones de los costos de producción a través de la simulación rigurosa en Aspen plus, y se utilizan los algoritmos de la metodología P-graph para generar la alternativa de producción óptima y alternativas cercanas a la óptima para diferentes casos de estudio. Los productos evaluados fueron lactatos de metilo y lactato de etilo, propilenglicol, ácido láctico concentrado y ácido poliláctico, resultando el lactato de metilo como el más relevante. El propilenglicol, es el producto menos deseable dentro de la estructura bajo el escenario de costos y valores de venta evaluados. Además de un esquema de producción tradicional en operación en continuo, se evaluó la metodología para esquemas de producción por lotes, tomando como productos de estudio los dos ésteres, en este caso se obtiene adicionalmente la programación para la producción de la planta. En este caso se obtiene un diagrama de Pareto que muestra las diferentes alternativas evaluando simultáneamente la ganancia y el tiempo de producción.
dc.languagespa
dc.publisherUniversidad Nacional de Colombia - Sede Bogotá
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dc.titleSíntesis de procesos para la adición de valor y la diversificación de los productos derivados del ácido láctico mediante la metodología P-graph.
dc.typeOtro


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