Abstract: A method of conditioning particulate material and/or a gas is provided, comprising the steps of: feeding an amount of particulate material up to a filling level into in an inner volume of a silo having silo walls, a gas inlet and a gas outlet, and generating a gas flow of a gas from the gas inlet through the particulate material to the gas outlet which comprises applying suction to the inner volume of the silo through the gas outlet, wherein the gas outlet is located in a silo wall below the filling level and covered by the particulate material. A system is also provided.

Abstract: An apparatus for the removal of gasses from a number of electrolysis cells, including a suction duct for each cell, each suction duct being connected to a central manifold with a gas treatment center and a central suction fan. A flow restriction device is provided in each suction duct. One or more additional ductworks are provided. Each additional ductwork is for one or more suction ducts. Each additional ductwork has a branch for each suction duct, the branch being connected to the suction duct between the electrolysis cell and the flow restriction device, which one or more branches are connected to a booster duct in which an on/off valve is present. One or more booster ducts are connected to a booster manifold connected to the central manifold. A booster fan is provided in the booster manifold. A method for performing an electrolysis process is also disclosed.

Abstract: An apparatus for the removal of gasses from a number of electrolysis cells, including a suction duct for each cell, each suction duct being connected to a central manifold with a gas treatment centre and a central suction fan. A flow restriction device is provided in each suction duct. One or more additional ductworks are provided. Each additional ductwork is for one or more suction ducts. Each additional ductwork has a branch for each suction duct, the branch being connected to the suction duct between the electrolysis cell and the flow restriction device, which one or more branches are connected to a booster duct in which an on/off valve is present. One or more booster ducts are connected to a booster manifold connected to the central manifold. A booster fan is provided in the booster manifold. A method for performing an electrolysis process is also disclosed.

Abstract: A device for purifying flue gas containing nitrogen oxides, in which the flue gas is scrubbed with a circulating scrubbing liquid which contains a transition metal chelate such as Fe(II) EDTA and the complex formed from nitrogen oxide and transition metal chelate and/or spent transition metal chelate is regenerated biologically in the presence of an electron donor, nitrogen oxide being reduced to molecular nitrogen. The biological reactor can be combined with the gas scrubber. The electron donor is, for example, hydrogen or methanol, but may also be sulphite which originates from sulphur dioxide in the flue gas.

Abstract: A process and a device for purifying flue gas containing nitrogen oxides, in which the flue gas is scrubbed with a circulating scrubbing liquid which contains a transition metal chelate such as Fe (II) EDTA and the complex formed from nitrogen oxide and transition metal chelate and/or spent transition metal chelate is regenerated biologically in the presence of an electron donor, nitrogen oxide being reduced to molecular nitrogen. The biological reactor can be combined with the gas scrubber. The electron donor is, for example, hydrogen or methanol, but may also be sulphite which originates from sulphur dioxide in the flue gas.