RT journal article T1 Determination of Requirements for the Improvement of Occupational Safety in the Cleaning of Vertical Tanks of Petroleum Products A1 Ramírez Peña, Magdalena A1 Cerezo Narváez, Alberto A1 Pastor Fernández, Andrés A1 Otero Mateo, Manuel A1 Ballesteros Pérez, Pablo A2 Ingeniería Mecánica y Diseño Industrial K1 occupational safety K1 safety requirements K1 tank cleaning K1 AHP K1 IAHP K1 Industry 5.0 K1 robotic cleaning AB Since the beginning of the second industrial revolution, the use of tanks for the storage of petroleum products ensured the permanent supply of equipment that depended on fossil fuel derived from petroleum, either for direct consumption or as an element for power generation. For correct operation, periodic cleaning of these confined spaces was required, being a common practice for the direct exposure of operators to explosive atmospheres. Currently, there are many industries that keep this kind of deposit, and cleaning works are considered of high occupational risk. In this context, the question arises as to whether human–machine collaboration thanks to the technologies that compose Industry 5.0 can mitigate these risks while generating a sustainable balance by optimizing costs and protecting the environment. In the present work, the analytic hierarchy process (AHP) method is used to prioritize the requirements that should be compiled to establish safe protocols in tank cleaning works, solving the multi-criteria problem. Results prove that a couple of alternatives improve the working conditions of the people involved in this process: the chemical cleaning and the robotic cleaning, which approximately accounts for two thirds of the decision. These requirements are aligned with the Industry 5.0 paradigm, encouraging the use of robots for high-risk processes, and influencing human behavior. In addition, cost reduction is achieved without compromising on quality of service or delivery schedule, thus enabling a circular economy that promotes occupational safety in company policies. PB MDPI SN 2313–576X YR 2023 FD 2023-02-02 LK http://hdl.handle.net/10498/29943 UL http://hdl.handle.net/10498/29943 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 05-nov-2026