Potencial do ceará para obtenção de hidrogênio verde via eletrólise da água residual através da energia eólica

Abstract

Much of the world's energy produced through fossil fuels, which is the temperature, the measurement of greenhouse gases and in turn, does not refer to that the focus of global initiative to increase the Earth's rise. Green hydrogen appears as an important element for environmental impacts, since its economy can occur through the electrolytic processes in water using renewable energy sources. In this work, an analysis of the potential for generating green hydrogen was carried out through a source of electricity: a wind energy that will work as a propellant for an alkaline electrolysis water system using Sewage Treatment Stations in the state of Ceará. In sequence, the amount of treated wastewater in the state was estimated, which was 11,629.40 L/h and the potential wind state, with the Ceará Wind and Solar Atlas, which was 362,162 GWh generated annually. The wastewater available in Ceará was assumed to have all processing capacity: cooling water and water for the production of this chemical element, an estimated production of hydrogen per hour. Finally, an analysis was carried out in order to evaluate the production of green hydrogen from energy and economic wastewater and a value between US$ and US$ 2.01/kg was analyzed. It was concluded that the costs have the ability to be reduced with a lower cost of electricity supply and lower interest rates, in addition to the possibility of residual water being offered free of charge by the energy concessionaire. In this way, the purpose of this study was concluded that it is the evaluation of the hydrogen potential of Ceará for the generation of green hydrogen through two parameters (wastewater and wind energy) and, according to the analysis carried out, there are sufficient resources for the implementation of this technology, since, possibly, an electrolyser plant will not be installed to use all the residual water resource available in the state.