Síntesis de procesos para la adición de valor y la diversificación de los productos derivados del ácido láctico mediante la metodología P-graph.
This 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 wh...
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| Tipo de recurso: | tesis de maestría |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2020 |
| País: | Colombia |
| Institución: | Universidad Nacional de Colombia |
| Repositorio: | Repositorio UN |
| Idioma: | español |
| OAI Identifier: | oai:repositorio.unal.edu.co:unal/75545 |
| Acceso en línea: | https://repositorio.unal.edu.co/handle/unal/75545 |
| Access Level: | acceso abierto |
| Palabra clave: | Ingeniería química P-graph Lactic acid Process-Network synthesis Lactic acid valorization Ácido láctico Diseño de procesos Valoración de ácido láctico |
| Sumario: | This 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. |
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