CAPTURA E ARMAZENAMENTO DE CO2: UMA REVISÃO DAS TECNOLOGIAS EXISTENTES, CARBONATAÇÃO IN SITU DE BASALTOS E AVALIAÇÃO DO POTENCIAL DA FORMAÇÃO SERRA GERAL COMO RESERVATÓRIO DE CO2

Carbon capture and storage: a review about current technologies, in situ carbonatation of basalts , and the evaluation of the Serra Geral Group as a potential CO2 reservoir

Abstract

The search for technologies capable of mitigating the effects of global warming is increasingly needed, given the imminence of the ecological risks associated with a global climate. Technologies of carbon capture and storage (Carbon Capture and Storage – CCS) are currently a promising method for the transition between current CO2 anthropogenic emissions to a scenario of net zero emissions. Rock formations are utilized to store CO2, and therefore there is an increasing research for potential reservoirs and technologies for their development. Sedimentary hydrocarbon-reservoir rocks are currently the most common type used to store CO2, due to their significant porosity and their frequent association with structural traps that can seal the stored CO2. Nevertheless, there is an on-going effort aimed at developing technologies that can explore the potential for the large-scale use of ultramafic/mafic rocks with significant porosity as CO2 reservoirs. This study seeks to contribute with a publication in Portuguese language that presents the CCS technologies and the use of geological formations, especially basaltic rocks, as an potential reservoir for anthropogenic CO2 storage. In order to achieve that, we reviewed important publications on the theme and discussed the preliminar potential of the Serra Geral Fm. as a CO2 reservoir.