Method for processing gaseous effluents containing organic compounds

The invention relates to a method and a flow of depollution treatment device (1) of gaseous effluent containing volatile organic compounds (VOCs) and / or polycyclic aromatic hydrocarbons (HAP) by adsorption and / or condensation of particles organic powder (56), said method comprising successively: (a) a step of introducing pulverulent organic particles (56) in the waste gas stream (1) in which at least a portion of said VOC and / or HAP are deposited on said particles (56); (B) a step of separating the organic particles pulverulent charge of VOC and / or HAP and treated effluent gases and evacuation thereof; Said method being characterized in that in the step of introducing powder particles of coke (a), the particles used are cooled before introduction.