Identifier: TFG:9155
Authors: Rofes Foix, Pau
Abstract:
This final degree project focuses on the design of the finishing train of an industrial plant dedicated to the production of polyols, specifically targeting the purification of the products Voranol-3136, Voranol-3010, and Voranol-3322. These compounds are obtained through an alkoxylation reaction catalyzed by potassium hydroxide, and require a purification process to effectively remove the catalyst and other residual impurities prior to commercialization. The project includes the design of all stages following the reactor up to the final storage of the product, using liquid–liquid extraction unit operations. A comparison of different technological alternatives for the involved equipment is also carried out, considering criteria such as efficiency, safety, implementation costs, maintenance, and environmental impact. The plant is designed to achieve an annual production capacity of 120,000 tons, distributed in batches of 150 tons, with an equipment configuration that includes post-reaction tanks, static mixers, coalescers, filters, vacuum systems, and final storage tanks. Auxiliary and safety systems such as PSV, PVRV, ERV, and DR are also integrated to ensure safe and controlled operation. The project is complemented by the development of block diagrams, PFDs, P&IDs, electrical single-line diagrams, and the general plant layout, as well as a safety analysis, economic assessment, and the drafting of operation manuals, guaranteeing the technical, economic, and operational viability of the facility.