A FILLER PIPE FOR FILLING A VEHICLE TANK

It is proposed a filler pipe (2) for filling a vehicle tank (1), the filler pipe having an inner surface and an outer surface, the inner surface defining an inner channel for conveying a compound therethrough. The filler pipe is configured to retain a biological catalyst (3) inside the inner channel. The biological catalyst is adapted to convert the compound into reaction product. The filler pipe comprises means (24) for thermally conditioning the biological catalyst at at least one predetermined temperature range suitable for activation and/or preservation of the biological catalyst.