[en] The objective of this work was to develop a CO2 hydrogenation plant project for the production of methanol from used ship engine oils with a draft of 263 m3. The process of obtaining methanol through hydrolysis involves the reaction of methane and water in the presence of a catalyst, such as copper and zinc oxides, at high temperatures and pressures. This reaction produces methanol and carbon dioxide as by-products. Subsequently, separation and purification of the products are carried out to obtain high-purity methanol. To achieve these objectives, hydrolysis was experimented with using a weight difference methodology since a gas chromatograph was not available. This methodology has allowed us to obtain data that shows that, despite having a generator, the process requires energy input. Due to the high energy input required for hydrolysis, it is not feasible to install a solar panel system as it would require nearly 2.3 million panels to be installed. In addition to this, the economic cost of methanol production is high as the price of MWh (megawatt-hour) is elevated, around €150 per MW/h, which increases the final product cost to €72.76 when its retail price is €2.6. Therefore, the concl This methodology has allowed us to obtain data that shows that despite having a generator, energy needs to be supplied to the process. Due to the high energy input required for hydrolysis, it is not feasible to install a solar panel system, as it would require about 2.3 million panels to be mounted. Furthermore, the economic cost of production is high since the price of MWh is elevated, around €150 per MW/H, which increases the final product cost to €72.76 when its retail price is €2.6. Therefore, the conclusion has been reached that despite certain efficiency improvements, it is currently not possible to compete in terms of selling price, and the problem lies in the fact that hydrogen production through electrolysis consumes too many resources to propose a realistic solution.

[es] El objetivo de este trabajo fue desarrollar un proyecto de planta de hidrogenación de CO2 para la producción de metanol a partir de aceites usados de motores de barcos con un calado de 263 m3. El proceso de obtención de metanol mediante hidrólisis implica la reacción del metano y el agua en presencia de un catalizador, como óxidos de cobre y zinc, a altas temperaturas y presiones. Esta reacción produce metanol y dióxido de carbono como subproductos. Posteriormente, se realiza una separación y purificación de los productos para obtener metanol de alta pureza. Para lograr estos objetivos, se experimentó con la hidrólisis utilizando una metodología de diferencia de peso ya que no se disponía de un cromatógrafo de gases. Esta metodología nos ha permitido obtener datos que muestran que, a pesar de tener un generador, el proceso requiere energía. Debido a la alta cantidad de energía necesaria para la hidrólisis, no es viable instalar un sistema de paneles solares, ya que requeriría cerca de 2.3 millones de paneles. Además, el costo económico de la producción de metanol es alto, ya que el precio del MWh es elevado, alrededor de 150 € por MW/h, lo que aumenta el costo final del producto a 72,76 € cuando su precio de venta al público es de 2,6 €. Por lo tanto, se ha llegado a la conclusión de que, a pesar de ciertas mejoras de eficiencia, actualmente no es posible competir en cuanto al precio de venta y el problema radica en que la producción de H2 mediante electrólisis consume demasiados recursos como para plantear una solución realista.