Abstract: The present invention relates to a process for producing methane and to the device for producing methane, making it possible to increase the methane content of the outgoing gas and preferably simultaneously to increase the methane content of the outgoing gas and the productivity of the reactor.

Abstract: A method for applying a polymerizable sealant using a device. The device includes a substantially cylindrical cartridge containing an activated polymerizable sealant. The cartridge has a distribution end and a piston. A receptacle of the cartridge having a connection interface with the distribution end thereof. The pressure acting on the piston of the cartridge ejects the activated sealant through the distribution end. An assembly of the device has a nozzle including an application orifice and a pipe to bring the sealant into the nozzle. A closure needle of the device moves in translation between a closed position where the end of the needle obstructs the application orifice of the nozzle and an open position where the end of the needle is distant from the application orifice.