Washing 2 and 3 represented the most critical stages of the process, contributing 95.12% of the total irreversibilities due to the waste exergy, which corresponds to the water and ethanol exergy discarded in these stages. ![]() The exergy of waste was estimated to be 105 313 MJ/h, while the unavoidable exergy losses were 2941 MJ/h. The exergy efficiency of the process was estimated at 0.046%. The process was modeled for the production of 807 t/year of magnetite nanoparticles the data for the simulation were obtained from the literature, and experimental results were developed by the authors. ![]() In this work, the simulation and exergy analysis of large-scale production of magnetite nanoparticles via coprecipitation were performed using computer-aided tools. In this sense, there is growing interest in the production of magnetite nanoparticles therefore, evaluating the performance of this process on a large scale gives relevant information to process designers. Magnetite nanoparticles present attractive properties including high magnetization, low toxicity, adsorption capacity, and simple preparation, making them efficient in water purification processes, soil remediation, and biomedical applications.
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