Nunes, Andréa OliveiraBarbosa, Harley Alves2020-12-172021-09-272020-12-172021-09-272020-12-01BARBOSA, Harley Alves. Processos de produção e estocagem de hidrogênio: uma revisão da literatura. 2020. 81f. Trabalho de Conclusão de Curso (Graduação em Engenharia Química) – Departamento de Engenharia Química, Universidade Federal do Rio Grande do Norte, Natal, 2020.https://repositorio.ufrn.br/handle/123456789/38768The diversification of the world energy matrix, composed mostly by fossil sources, represents a great current challenge. In this context, hydrogen gas appears as one of the promising alternatives to enable the transition to a more sustainable energy model. Hydrogen is the fuel with the highest energy density per mass (141,6 MJ.kg-1), generating only water as a product during its combustion. Despite these incredible properties, the production and storage of hydrogen gas on a large scale, in addition to the logistics associated with its use, still present numerous difficulties to be overcome to make it competitive with other fuels. For hydrogen to be considered a clean fuel, the production processes and energy sources used must also be clean. This work discusses in a synthetic way the state of the art of the main systems of production and storage of hydrogen, bringing also the current scenario of popularity of this fuel, advantages and disadvantages associated, in addition to references that evaluate these systems in terms of technical, economic, social and environmental performance. In addition, some innovations and alternatives to production systems are also exposed. Hydrogen production systems are mainly divided into four main groups: thermochemical, biological, electrical and photolytic. The photolytic systems have the best environmental performance and thermochemical ones the worst. The best overall performance is associated with electrical systems and the worst with biological systems. Regarding the energy sources used, solar and nuclear sources present the best and worst environmental performance respectively. Regarding the storage methods, the nanomaterials systems have the best general and environmental performance and cryogenic liquid storage have the worst. Thermochemical cycles, especially S-I, can be alternative processes of hydrogen production, reducing energy expenditure and the emission of pollutants. The integration of biological production systems can be one of the viable solutions to improve the overall low performance of this group of processes. Finally, the electrochemical reform and the use of MEC electrolysers can be alternatives to conventional electrolysis processes.Energias RenováveisRenewable EnergyHidrogênioProduçãoEstocagemHydrogenStorageProductionbachelorThesisEngenharias.