Carbon canister including liquid separator

Fuel vapor storage and recovery apparatus including a housing defining at least one main vapor storage compartment filled with an adsorbent material, at least one vapor inlet port, at least one atmospheric vent port, and at least one purge port, said vapor inlet port being connectable to a fuel tank venting line and said purge port being connectable to an engine air intake line, wherein said main vapor storage compartment comprises a purge buffer zone and at least one first fuel vapor distribution chamber not filled with an adsorbent material, wherein said first fuel vapor storage distribution chamber is arranged hydraulically upstream said purge buffer zone and directly communicates with said fuel vapor inlet port, wherein said first fuel vapor distribution chamber includes a liquid trap.