Abstract: The invention relates to an electrolysis arrangement for alkaline electrolysis and a method for producing hydrogen and oxygen by electrolysis of an alkaline electrolysis medium. According to the invention, an anolyte deaerating means is arranged downstream of an anolyte gas-liquid separator and is arranged upstream of the electrolysis cell stack of the electrolysis arrangement, and/or a catholyte deaerating means is arranged downstream of a catholyte gas-liquid separator and arranged upstream of the electrolysis cell stack of the electrolysis arrangement. By this arrangement, the fact is exploited that many undesirable gas components have a much lower solubility in the alkaline electrolysis medium than in pure deionised water, which is supplied as fresh water to the electrolysis arrangement for compensation of the water consumed by the electrochemical reaction.

Abstract: Insulated enclosure having at least one surface that is planar, containing at least one piece of equipment intended to operate at a temperature below 0° C., the interior space of the enclosure being intended to be at a pressure below atmospheric pressure and being filled with thermal insulation, and the thermal insulation being made up of a multitude of spherical beads made of thermally insulating material.