Citas bibligráficas
Nazario, C., Lema, K. (2024). Evaluación de prefactibilidad de un proceso de obtención de metanol a partir de biogás de estiércol vacuno [Tesis, Universidad de Ingeniería y Tecnología]. https://hdl.handle.net/20.500.12815/403
Nazario, C., Lema, K. Evaluación de prefactibilidad de un proceso de obtención de metanol a partir de biogás de estiércol vacuno [Tesis]. PE: Universidad de Ingeniería y Tecnología; 2024. https://hdl.handle.net/20.500.12815/403
@misc{renati/1019307,
title = "Evaluación de prefactibilidad de un proceso de obtención de metanol a partir de biogás de estiércol vacuno",
author = "Lema Rosales, Kayla Luciana de Fátima",
publisher = "Universidad de Ingeniería y Tecnología",
year = "2024"
}
In Peru, the growing demand for methanol as an essential raw material for biodiesel B100 production has driven the exploration of alternative and sustainable sources for its production. Traditionally, methanol is produced from natural gas; however, it is possible to obtain biogas with similar composition through anaerobic digestion of organic matter. In this context, the present study evaluated the technical and economic feasibility of producing methanol from biogas derived from cattle manure. The process was modeled in Promax process simulator, considering a plant capacity of methanol of 5973 tonne/year capable of satisfying 10% of peruvian B100 biodiesel demand. Initially, a base model was developed, which proved unprofitable with an NPV of -5.1 MM$ and an uncalculable IRR. Subsequently, energy integrations were implemented to reduce OPEX costs, achieving an NPV of -2.7 MM$ and an IRR of 1% in the fifth integration which was still insufficient to ensure profitability. To improve economic indicators, the feedstock of the integrated model was scaled up. By doubling (x2) and quadrupling (x4) the biogas feed, profitable values were achieved: for the x2 scale, an NPV of 0.4 MM$ and an IRR of 16%; and for the x4 scale, an NPV of 3.3 MM$ and an IRR of 20%. Sensitivity analysis resulted in a model which is more sensible to OPEX and methanol price than to CAPEX and biogas cost. The x2 scale was selected due to its profitability, availability of raw materials, and capacity to fully supply the national biodiesel B100 industry. Additionally, a risk analysis (HAZID) was performed, along with a flammability analysis of the streams with oxygen presence. For the environmental analysis, the compositions of process emissions were evaluated, which comply with Peruvian regulations; however, the effluents exceeded the established maximum values, resulting in an increase in sewage costs.
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