Abstract: A system and method of combating, controlling and extinguishing fires (60) in flammable liquids (65) stored in atmospheric tanks (50), which may comprise low-viscosity materials, the combat being performed by injecting streams of a gaseous extinguishing fluid (16) at ambient conditions, at the bottom of an atmospheric tank (50) through an injector assembly (14), not enabling the formation of residues after the combat of the fire and enabling the fluid (65) to be used normally after the fire has been extinguished. The system does not use water and does not expose people to risks while combating the flames, while minimizing the emission of toxic smoke into the environment and to neighboring populations due to the speed of the combat.

Abstract: The present invention refers to a method and system for ejecting carbon dioxide as High-Speed Jets with Sublimation. More specifically, the present invention describes a method and system capable of controlling and extinguishing fires from the CO2 ejected. In summary, the proposed method comprises the steps of removing CO2 in a first state (G) from the storage medium (2) and inserting the CO2 in first state (G) in the driver set (3); maintaining the insertion of CO2 in first state in the driver set (3) up to the equalization of the internal pressure between the storage medium (2) and the driver set (3); removing carbon dioxide in a second state (L) from the storage medium (2) and inserting the carbon dioxide in second state in the driver set (3) after the equalization of the pressure of the storage medium (2) and of the driver set; ejecting the CO2 in the form of high-speed jets with high content of CO2 in third state (S) through the driver set (3).