Adsorption properties of environmentally friendly insulating medium C ₄ F ₇ N and its common decomposition products in NaA, NaZSM‐5, and NaX molecular sieves

Selecting suitable materials to adsorb the C4F7N mixtures decomposition products could not only keep stable operation of environmentally friendly insulating gas switch cabinet, but also ensure safety and maintenance personnel. It is necessary study interaction three types molecular sieves with mixture its products, which provide a theoretical basis for selection adsorbents in cabinet. In this research, dynamics simulation was used C4F7N-CO2 ten kinds CO, CF4, C2F6, C3F6, C3F8, CF3H, CF3CN, C2F5CN, C2N2, COF2 adsorption process (NaA, NaZSM-5, NaX). The concentration distribution curve energy parameters were obtained by simulation. energies C3F8 NaA, C3F6 NaX sieve are largest, −368.35 kJ/mol, −174.93 −340.09 kJ/mol respectively. Then, results verified fluorocarbon gases experiment. performance all combining experimental parameters. rate NaA less than 35%, weak. NaZSM-5 show excellent rates over 70%. shows good capacity C4F7N, C2F5CN. Both them have potential be as environmental protection insulated