Resumo:

Techniques of Carbon Capture and Storage (CCS) are important alternatives for decarbonisation, based on the world scenario aiming at net-zero emissions and energy transition. In Brazil, there is a vast potential for these technologies. The Parana Sedimentary Basin presents one of the best alternatives for CO2 storage, considering the proximity to stationary sources of CO2 and potential geological reservoir units, such as the significant variability of lithologies and total depth of the volcano-sedimentary succession. Also, the region comprising the basin includes the main areas of national production of biofuels. Therefore, locating CCS plants within the area can contribute to significant reductions in carbon emissions. This chapter presents an overview of the geological aspects of the Parana Sedimentary Basin, focusing on an assessment of its theoretical potential for CO2 geological storage. This evaluation is based on data available in the literature involving geological investigations, considering saline aquifers, black shales, coal and basalts as the main potential reservoirs for CO2 storage. The Rio Bonito, Itararé, Irati, Ponta Grossa and the Serra Geral Formations present potential geological reservoirs for CCS.