REMOTE DETECTION OF PROPANE LEAKS Russian patent published in 2022 - IPC G01N21/39 

FIELD: gas analysis.

SUBSTANCE: invention relates to gas analysis, namely to the detection of propane or NGL leaks from main pipelines using instruments installed on board aircraft. The remote method for detecting propane leaks includes registering the reflected radiation that has passed through the propane layer at two laser wavelengths. In this case, laser sounding from an aircraft carrier is used at wavelengths λ₁=13 080 and λ₂=12 190 nm, for which atmospheric gases practically do not cause radiation absorption (for their concentrations characteristic of the earth's atmosphere). The method is based on registration of laser radiation reflected from a topographic reflector (for example, the earth's surface) at wavelengths of 13080 and 12190 nm and allows monitoring regardless of the time of day and in a wide range of water vapor concentrations.

EFFECT: possibility of detecting propane leaks from pipelines is achieved.

1 cl, 4 dwg, 2 tbl